[lkp-robot] [x86/paravirt] b1e955caea: WARNING:at_kernel/locking/lockdep.c:#trace_hardirqs_off_caller

[kernel test robot]

FYI, we noticed the following commit:

commit: b1e955caea7e3ae340ebd5392a7fe4478f64ce1d ("x86/paravirt: Avoid setting 
IF flag, if not necessary")
url: 
https://github.com/0day-ci/linux/commits/Waiman-Long/x86-paravirt-Avoid-setting-IF-flag-if-not-necessary/20170207-051507


in testcase: trinity
with following parameters:

runtime: 300s

test-description: Trinity is a linux system call fuzz tester.
test-url: http://codemonkey.org.uk/projects/trinity/


on test machine: qemu-system-x86_64 -m 320M

caused below changes (please refer to attached dmesg/kmsg for entire 
log/backtrace):


++++
|| 10b9dd5686 | 
b1e955caea |
++++
| boot_successes | 2  | 
4  |
| boot_failures  | 2  | 
4  |
| WARNING:at_arch/x86/include/asm/fpu/internal.h:#fpu__restore   | 2  | 
   |
| WARNING:at_kernel/locking/lockdep.c:#trace_hardirqs_off_caller | 0  | 
4  |
| calltrace:native_smp_prepare_cpus  | 0  | 
4  |
++++



[3.528640] WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:2760 
trace_hardirqs_off_caller+0x108/0x120
[3.530745] DEBUG_LOCKS_WARN_ON(!irqs_disabled())
[3.532013] Modules linked in:
[3.533837] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 
4.9.0-rc6-00134-gb1e955c #1
[3.534833] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.9.3-20161025_171302-gandalf 04/01/2014
[3.537411]  c900bcc8 8144e9e3 8113d618 
c900bd28
[3.539432]  c900bd28  c900bd18 
810ac222
[3.54]   0ac80001  
8c25
[3.54] Call Trace:
[3.54]  [] dump_stack+0xf1/0x16e
[3.54]  [] ? trace_hardirqs_off_caller+0x108/0x120
[3.54]  [] __warn+0x172/0x1a0
[3.54]  [] warn_slowpath_fmt+0x61/0x80
[3.54]  [] ? delay_tsc+0x1a0/0x1d0
[3.54]  [] trace_hardirqs_off_caller+0x108/0x120
[3.54]  [] trace_hardirqs_off+0x1d/0x30
[3.54]  [] timer_irq_works+0x9f/0x10f
[3.54]  [] setup_IO_APIC+0x693/0xee5
[3.54]  [] ? _raw_spin_unlock_irqrestore+0x91/0xf0
[3.54]  [] ? clear_IO_APIC_pin+0xe3/0x1a0
[3.54]  [] apic_bsp_setup+0x105/0x122
[3.54]  [] native_smp_prepare_cpus+0x4b3/0x55e
[3.54]  [] kernel_init_freeable+0x76/0x2c4
[3.54]  [] ? rest_init+0x220/0x220
[3.54]  [] kernel_init+0x16/0x1d0
[3.54]  [] ret_from_fork+0x2a/0x40
[3.543531] ---[ end trace 14a0f48288b7a69f ]---


To reproduce:

git clone 
git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k  job-script  # job-script is attached in this 
email



Thanks,
Xiaolong
#
# Automatically generated file; DO NOT EDIT.
# Linux/x86_64 4.9.0-rc6 Kernel Configuration
#
CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=28
CONFIG_ARCH_MMAP_RND_BITS_MAX=32
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ZONE_DMA32=y
CONFIG_AUDIT_ARCH=y
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_X86_64_SMP=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_DEBUG_RODATA=y
CONFIG_PGTABLE_LEVELS=4
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_CONSTRUCTORS=y
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y

#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
# CONFIG_KERNEL_GZIP is not set
# CONFIG_KERNEL_BZIP2 is not set
# 

24e700e291 ("Merge branch 'x86-apic-for-linus' of .."): WARNING: kernel stack regs at 979f9f70 in kworker/u4:1:648 has bad 'bp' value (null)

[kernel test robot]

Greetings,

0day kernel testing robot got the below dmesg and the first bad commit is

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

commit 24e700e291d52bd200212487e2b654c0aa3f07a2
Merge: f57091767add2 c6ef89421e236
Author: Linus Torvalds 
AuthorDate: Mon Sep 4 17:43:56 2017 -0700
Commit: Linus Torvalds 
CommitDate: Mon Sep 4 17:43:56 2017 -0700

Merge branch 'x86-apic-for-linus' of 
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 apic updates from Thomas Gleixner:
 "This update provides:

   - Cleanup of the IDT management including the removal of the extra
 tracing IDT. A first step to cleanup the vector management code.

   - The removal of the paravirt op adjust_exception_frame. This is a
 XEN specific issue, but merged through this branch to avoid nasty
 merge collisions

   - Prevent dmesg spam about the TSC DEADLINE bug, when the CPU has
 disabled the TSC DEADLINE timer in CPUID.

   - Adjust a debug message in the ioapic code to print out the
 information correctly"

* 'x86-apic-for-linus' of 
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits)
  x86/idt: Fix the X86_TRAP_BP gate
  x86/xen: Get rid of paravirt op adjust_exception_frame
  x86/eisa: Add missing include
  x86/idt: Remove superfluous ALIGNment
  x86/apic: Silence "FW_BUG TSC_DEADLINE disabled due to Errata" on CPUs 
without the feature
  x86/idt: Remove the tracing IDT leftovers
  x86/idt: Hide set_intr_gate()
  x86/idt: Simplify alloc_intr_gate()
  x86/idt: Deinline setup functions
  x86/idt: Remove unused functions/inlines
  x86/idt: Move interrupt gate initialization to IDT code
  x86/idt: Move APIC gate initialization to tables
  x86/idt: Move regular trap init to tables
  x86/idt: Move IST stack based traps to table init
  x86/idt: Move debug stack init to table based
  x86/idt: Switch early trap init to IDT tables
  x86/idt: Prepare for table based init
  x86/idt: Move early IDT setup out of 32-bit asm
  x86/idt: Move early IDT handler setup to IDT code
  x86/idt: Consolidate IDT invalidation
  ...

f57091767a  Merge branch 'x86-cache-for-linus' of 
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
c6ef89421e  x86/idt: Fix the X86_TRAP_BP gate
24e700e291  Merge branch 'x86-apic-for-linus' of 
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
0f380715e5  Merge tag 'sound-4.14-rc4' of 
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
1418b85217  Add linux-next specific files for 20170929
+--+++++---+
|  | f57091767a | c6ef89421e | 24e700e291 | 0f380715e5 | 
next-20170929 |
+--+++++---+
| boot_successes   | 320| 320| 101| 28 | 5  
   |
| boot_failures| 0  | 0  | 15 | 2  | 1  
   |
| WARNING:kernel_stack | 0  | 0  | 15 | 2  | 1  
   |
+--+++++---+

[   18.114577] init: tty6 main process (334) terminated with status 1
[   18.115792] init: tty6 main process ended, respawning
[init] Using pid_max = 4096
[init] Started watchdog process, PID is 559
[main] Main thread is alive.
[   20.993350] WARNING: kernel stack regs at 979f9f70 in kworker/u4:1:648 has 
bad 'bp' value   (null)
[   20.993353] unwind stack type:0 next_sp:  (null) mask:0x2 graph_idx:0
[   20.993355] 979f9e14:  ...
[   20.993359] 979f9e18: 979f9e64 (0x979f9e64)
[   20.993366] 979f9e1c: 9462d75f (__save_stack_trace+0x112/0x11c)
[   20.993369] 979f9e20: 009f9e2c (0x9f9e2c)

  # HH:MM RESULT GOOD 
BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD
git bisect start 045c5205823fc3cd4e5cafdedb2cc7d434424909 v4.13 --
git bisect  bad e77d3b0c4a6a973872652601aae35d4ab1785fb4  # 16:56  B 15 
3   15  17  Merge branch 'irq-urgent-for-linus' of 
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect  bad 42c8e86c9c3e15ac653c31d57b2f985579c2991d  # 17:21  B 36 
2   36  38  Merge tag 'trace-v4.14' of 
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
git bisect  bad 77d0ab600af4bf5152bc98d0ac1edbc34c1e5fdf  # 17:34  B  5 
10   0  Merge tag 'gfs2-4.14.fixes' of 
git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
git bisect good 93cc1228b4a60584f3dadbd84f19f365bb945acb  # 18:22  G106 
01   1  Merge branch 'irq-core-for-linus' of 
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect  bad bf1d6b2c76eda86159519bf5c427b1fa8f51f733  # 18:34  B 13 
4 

[fw_cfg] c8bf448ff3: kernel_BUG_at_arch/x86/mm/physaddr.c

[kernel test robot]

FYI, we noticed the following commit (built with gcc-7):

commit: c8bf448ff3899860de51fbae61a43619c912ddf2 ("fw_cfg: do DMA read 
operation")
https://git.kernel.org/cgit/linux/kernel/git/mst/vhost.git vhost

in testcase: boot

on test machine: qemu-system-x86_64 -enable-kvm -m 420M

caused below changes (please refer to attached dmesg/kmsg for entire 
log/backtrace):


+--+++
|  | b4b818b1f7 | c8bf448ff3 |
+--+++
| boot_successes   | 8  | 0  |
| boot_failures| 0  | 8  |
| kernel_BUG_at_arch/x86/mm/physaddr.c | 0  | 8  |
| invalid_opcode:#[##] | 0  | 8  |
| RIP:__phys_addr  | 0  | 8  |
| Kernel_panic-not_syncing:Fatal_exception | 0  | 8  |
+--+++



[   19.254526] kernel BUG at arch/x86/mm/physaddr.c:27!
[   19.255580] invalid opcode:  [#1]
[   19.256147] Modules linked in:
[   19.256561] CPU: 0 PID: 1 Comm: swapper Not tainted 4.15.0-00020-gc8bf448 #1
[   19.256561] RIP: 0010:__phys_addr+0x4f/0x90
[   19.256561] RSP: :c900bc50 EFLAGS: 00010287
[   19.256561] RAX: 7800 RBX: 880017c5ff20 RCX: 880017c5ff20
[   19.256561] RDX: 8000 RSI:  RDI: 
[   19.256561] RBP: c900bc50 R08: 8802e750 R09: 
[   19.256561] R10: 880017c5ff20 R11:  R12: 0400
[   19.256561] R13: 0004 R14:  R15: 0400
[   19.256561] FS:  () GS:82849000() 
knlGS:
[   19.256561] CS:  0010 DS:  ES:  CR0: 80050033
[   19.256561] CR2:  CR3: 0281b000 CR4: 06b0
[   19.256561] Call Trace:
[   19.256561]  fw_cfg_dma_transfer+0x5c/0x130
[   19.256561]  fw_cfg_read_blob+0x132/0x250
[   19.256561]  fw_cfg_sysfs_probe+0x43e/0xa40
[   19.256561]  ? mutex_unlock+0x1d/0x30
[   19.256561]  platform_drv_probe+0x5e/0x130
[   19.256561]  driver_probe_device+0x5c2/0x770
[   19.256561]  __driver_attach+0x14c/0x1d0
[   19.256561]  ? driver_probe_device+0x770/0x770
[   19.256561]  bus_for_each_dev+0xa7/0xf0
[   19.256561]  driver_attach+0x21/0x30
[   19.256561]  bus_add_driver+0x318/0x420
[   19.256561]  ? firmware_map_add_early+0x84/0x84
[   19.256561]  driver_register+0xa7/0x190
[   19.256561]  ? firmware_map_add_early+0x84/0x84
[   19.256561]  __platform_driver_register+0x39/0x50
[   19.256561]  fw_cfg_sysfs_init+0x4e/0x8e
[   19.256561]  ? firmware_map_add_early+0x84/0x84
[   19.256561]  do_one_initcall+0x53/0x285
[   19.256561]  kernel_init_freeable+0x1dc/0x2d8
[   19.256561]  ? rest_init+0x140/0x140
[   19.256561]  kernel_init+0x11/0x1d0
[   19.256561]  ret_from_fork+0x1f/0x30
[   19.256561] Code: 01 f8 48 39 c2 72 24 0f b6 0d 9a 17 e3 01 48 89 c2 48 83 
05 e3 5e fc 01 01 48 d3 ea 48 85 d2 75 0a 48 83 05 db 5e fc 01 01 5d c3 <0f> 0b 
48 83 05 d7 5e fc 01 01 48 8b 05 30 54 7c 01 48 83 05 98 
[   19.256561] RIP: __phys_addr+0x4f/0x90 RSP: c900bc50
[   19.285532] ---[ end trace 4c809434fb988277 ]---


To reproduce:

git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k  job-script  # job-script is attached in this 
email



Thanks,
lkp
#
# Automatically generated file; DO NOT EDIT.
# Linux/x86_64 4.15.0 Kernel Configuration
#
CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=28
CONFIG_ARCH_MMAP_RND_BITS_MAX=32
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ZONE_DMA32=y
CONFIG_AUDIT_ARCH=y
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_PGTABLE_LEVELS=4
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_CONSTRUCTORS=y
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y

#
# General setup
#
CONFIG_BROKEN_ON_SMP=y

[x86/head/64] e5a6f186af: BUG:kernel_hang_in_boot_stage

[kernel test robot]

Greeting,

FYI, we noticed the following commit (built with gcc-7):

commit: e5a6f186afc353e4462a28b4bf127e872e0716b2 ("[PATCH v3 70/75] 
x86/head/64: Setup TSS early for secondary CPUs")
url: 
https://github.com/0day-ci/linux/commits/Joerg-Roedel/x86-SEV-ES-Guest-Support/20200429-044743


in testcase: boot

on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 8G

caused below changes (please refer to attached dmesg/kmsg for entire 
log/backtrace):


+---+++
|   | 8d9d92d58d | e5a6f186af |
+---+++
| boot_successes| 4  | 0  |
| boot_failures | 0  | 4  |
| BUG:kernel_hang_in_boot_stage | 0  | 4  |
+---+++


If you fix the issue, kindly add following tag
Reported-by: kernel test robot 


needed_size: 0x0240
trampoline_32bit: 0x0009d000

Decompressing Linux... Parsing ELF... done.
Booting the kernel.
BUG: kernel hang in boot stage
Linux version 5.7.0-rc2-00092-ge5a6f186afc353 #1
Command line: ip=vm-snb-ssd-16::dhcp root=/dev/ram0 user=lkp 
job=/lkp/jobs/scheduled/vm-snb-ssd-16/boot-1-yocto-x86_64-minimal-20190520.cgz-e5a6f186afc353e4462a28b4bf127e872e0716b2-20200507-6867-rkmir2-3.yaml
 ARCH=x86_64 kconfig=x86_64-lkp branch=linux-devel/devel-hourly-2020050609 
commit=e5a6f186afc353e4462a28b4bf127e872e0716b2 
BOOT_IMAGE=/pkg/linux/x86_64-lkp/gcc-7/e5a6f186afc353e4462a28b4bf127e872e0716b2/vmlinuz-5.7.0-rc2-00092-ge5a6f186afc353
 max_uptime=600 
RESULT_ROOT=/result/boot/1/vm-snb-ssd/yocto-x86_64-minimal-20190520.cgz/x86_64-lkp/gcc-7/e5a6f186afc353e4462a28b4bf127e872e0716b2/3
 LKP_SERVER=inn selinux=0 debug apic=debug sysrq_always_enabled 
rcupdate.rcu_cpu_stall_timeout=100 net.ifnames=0 printk.devkmsg=on panic=-1 
softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 
prompt_ramdisk=0 drbd.minor_count=8 systemd.log_level=err ignore_loglevel 
console=tty0 earlyprintk=ttyS0,115200 console=ttyS0,115200 vga=normal rw 
rcuperf.shutdown=0 watchdog_thresh=60

Elapsed time: 420



To reproduce:

# build kernel
cd linux
cp config-5.7.0-rc2-00092-ge5a6f186afc353 .config
make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 olddefconfig prepare 
modules_prepare bzImage

git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k  job-script # job-script is attached in this 
email



Thanks,
lkp

#
# Automatically generated file; DO NOT EDIT.
# Linux/x86_64 5.7.0-rc2 Kernel Configuration
#

#
# Compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
#
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=70500
CONFIG_LD_VERSION=23400
CONFIG_CLANG_VERSION=0
CONFIG_CC_CAN_LINK=y
CONFIG_CC_HAS_ASM_GOTO=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_WARN_MAYBE_UNINITIALIZED=y
CONFIG_CC_DISABLE_WARN_MAYBE_UNINITIALIZED=y
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y

#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_BUILD_SALT=""
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_CROSS_MEMORY_ATTACH=y
CONFIG_USELIB=y
# CONFIG_AUDIT is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_GENERIC_IRQ_MIGRATION=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_SIM=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR=y
CONFIG_GENERIC_IRQ_RESERVATION_MODE=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
# CONFIG_GENERIC_IRQ_DEBUGFS is not set
# end of IRQ subsystem

CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_INIT=y
CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ_FULL is not set
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
# end of Timers subsystem

# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y

#
# CPU/Task time and stats a

Re: [PATCH v10 2/2] s390: virtio: PV needs VIRTIO I/O device protection

[kernel test robot]

Hi Pierre,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linux/master]
[cannot apply to s390/features linus/master v5.9-rc3 next-20200828]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Pierre-Morel/s390-virtio-let-arch-validate-VIRTIO-features/20200831-171552
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
bcf876870b95592b52519ed4aafcf9d95999bc9c
config: s390-randconfig-r004-20200831 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
c10e63677f5d20f18010f8f68c631ddc97546f7d)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=s390 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
 ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
   ___constant_swab32(x) : \
  ^
   include/uapi/linux/swab.h:20:12: note: expanded from macro 
'___constant_swab32'
   (((__u32)(x) & (__u32)0xff00UL) <<  8) |\
 ^
   In file included from arch/s390/mm/init.c:20:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:22:
   In file included from include/linux/writeback.h:14:
   In file included from include/linux/blk-cgroup.h:23:
   In file included from include/linux/blkdev.h:28:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:72:
   include/asm-generic/io.h:490:45: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   val = __le32_to_cpu(__raw_readl(PCI_IOBASE + addr));
   ~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro 
'__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
 ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
   ___constant_swab32(x) : \
  ^
   include/uapi/linux/swab.h:21:12: note: expanded from macro 
'___constant_swab32'
   (((__u32)(x) & (__u32)0x00ffUL) >>  8) |\
 ^
   In file included from arch/s390/mm/init.c:20:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:22:
   In file included from include/linux/writeback.h:14:
   In file included from include/linux/blk-cgroup.h:23:
   In file included from include/linux/blkdev.h:28:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:72:
   include/asm-generic/io.h:490:45: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   val = __le32_to_cpu(__raw_readl(PCI_IOBASE + addr));
   ~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro 
'__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
 ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
   ___constant_swab32(x) : \
  ^
   include/uapi/linux/swab.h:22:12: note: expanded from macro 
'___constant_swab32'
   (((__u32)(x) & (__u32)0xff00UL) >> 24)))
 ^
   In file included from arch/s390/mm/init.c:20:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:22:
   In file included from include/linux/writeback.h:14:
   In file included from include/linux/blk-cgroup.h:23:
   In file included from include/linux/blkdev.h:28:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:72:
   include/asm-generic/io.h:490:45: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   val = __le32_to_cpu(__raw_readl(PCI_IOBASE + addr));
   

Re: [PATCH v3 3/7] mm/memory_hotplug: prepare passing flags to add_memory() and friends

[kernel test robot]

Hi David,

I love your patch! Yet something to improve:

[auto build test ERROR on next-20200909]
[cannot apply to mmotm/master hnaz-linux-mm/master xen-tip/linux-next 
powerpc/next linus/master v5.9-rc4 v5.9-rc3 v5.9-rc2 v5.9-rc4]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/David-Hildenbrand/mm-memory_hotplug-selective-merging-of-system-ram-resources/20200910-171630
base:7204eaa2c1f509066486f488c9dcb065d7484494
config: x86_64-randconfig-a016-20200909 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
0a5dc7effb191eff740e0e7ae7bd8e1f6bdb3ad9)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

   WARNING: unmet direct dependencies detected for PHY_SAMSUNG_UFS
   Depends on OF && (ARCH_EXYNOS || COMPILE_TEST
   Selected by
   - SCSI_UFS_EXYNOS && SCSI_LOWLEVEL && SCSI && SCSI_UFSHCD_PLATFORM && 
(ARCH_EXYNOS || COMPILE_TEST
   In file included from arch/x86/kernel/asm-offsets.c:9:
   In file included from include/linux/crypto.h:20:
   In file included from include/linux/slab.h:15:
   In file included from include/linux/gfp.h:6:
   In file included from include/linux/mmzone.h:853:
>> include/linux/memory_hotplug.h:354:55: error: unknown type name 'mhp_t'
   extern int __add_memory(int nid, u64 start, u64 size, mhp_t mhp_flags);
   ^
   include/linux/memory_hotplug.h:355:53: error: unknown type name 'mhp_t'
   extern int add_memory(int nid, u64 start, u64 size, mhp_t mhp_flags);
   ^
   include/linux/memory_hotplug.h:357:11: error: unknown type name 'mhp_t'
   mhp_t mhp_flags);
   ^
   include/linux/memory_hotplug.h:360:10: error: unknown type name 'mhp_t'
   mhp_t mhp_flags);
   ^
   4 errors generated.
   Makefile Module.symvers System.map arch block certs crypto drivers fs 
include init ipc kernel lib mm modules.builtin modules.builtin.modinfo 
modules.order net scripts security sound source tools usr virt vmlinux 
vmlinux.o vmlinux.symvers [scripts/Makefile.build:117: 
arch/x86/kernel/asm-offsets.s] Error 1
   Target '__build' not remade because of errors.
   Makefile Module.symvers System.map arch block certs crypto drivers fs 
include init ipc kernel lib mm modules.builtin modules.builtin.modinfo 
modules.order net scripts security sound source tools usr virt vmlinux 
vmlinux.o vmlinux.symvers [Makefile:1196: prepare0] Error 2
   Target 'prepare' not remade because of errors.
   make: Makefile Module.symvers System.map arch block certs crypto drivers fs 
include init ipc kernel lib mm modules.builtin modules.builtin.modinfo 
modules.order net scripts security sound source tools usr virt vmlinux 
vmlinux.o vmlinux.symvers [Makefile:185: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.

# 
https://github.com/0day-ci/linux/commit/d88270d1c0783a7f99f24a85692be90fd2ae0d7d
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
David-Hildenbrand/mm-memory_hotplug-selective-merging-of-system-ram-resources/20200910-171630
git checkout d88270d1c0783a7f99f24a85692be90fd2ae0d7d
vim +/mhp_t +354 include/linux/memory_hotplug.h

   352  
   353  extern void __ref free_area_init_core_hotplug(int nid);
 > 354  extern int __add_memory(int nid, u64 start, u64 size, mhp_t mhp_flags);

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org


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Re: [PATCH v11 2/2] s390: virtio: PV needs VIRTIO I/O device protection

[kernel test robot]

Hi Pierre,

I love your patch! Perhaps something to improve:

[auto build test WARNING on s390/features]
[also build test WARNING on linus/master v5.9-rc4 next-20200903]
[cannot apply to linux/master kvms390/next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Pierre-Morel/s390-virtio-let-arch-validate-VIRTIO-features/20200907-174101
base:   https://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git features
config: s390-randconfig-r006-20200908 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
5f5a0bb0872a9673bad08b38bc0b14c42263902a)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=s390 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
 ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
   ___constant_swab32(x) : \
  ^
   include/uapi/linux/swab.h:20:12: note: expanded from macro 
'___constant_swab32'
   (((__u32)(x) & (__u32)0xff00UL) <<  8) |\
 ^
   In file included from arch/s390/mm/init.c:20:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:22:
   In file included from include/linux/writeback.h:14:
   In file included from include/linux/blk-cgroup.h:23:
   In file included from include/linux/blkdev.h:25:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:72:
   include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
   ~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro 
'__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
 ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
   ___constant_swab32(x) : \
  ^
   include/uapi/linux/swab.h:21:12: note: expanded from macro 
'___constant_swab32'
   (((__u32)(x) & (__u32)0x00ffUL) >>  8) |\
 ^
   In file included from arch/s390/mm/init.c:20:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:22:
   In file included from include/linux/writeback.h:14:
   In file included from include/linux/blk-cgroup.h:23:
   In file included from include/linux/blkdev.h:25:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:72:
   include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
   ~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro 
'__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
 ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
   ___constant_swab32(x) : \
  ^
   include/uapi/linux/swab.h:22:12: note: expanded from macro 
'___constant_swab32'
   (((__u32)(x) & (__u32)0xff00UL) >> 24)))
 ^
   In file included from arch/s390/mm/init.c:20:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:22:
   In file included from include/linux/writeback.h:14:
   In file included from include/linux/blk-cgroup.h:23:
   In file included from include/linux/blkdev.h:25:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:72:
   include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   val = __le32_to_cpu((_

Re: [PATCH v3 3/7] mm/memory_hotplug: prepare passing flags to add_memory() and friends

[kernel test robot]

Hi David,

I love your patch! Perhaps something to improve:

[auto build test WARNING on next-20200909]
[cannot apply to mmotm/master hnaz-linux-mm/master xen-tip/linux-next 
powerpc/next linus/master v5.9-rc4 v5.9-rc3 v5.9-rc2 v5.9-rc4]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/David-Hildenbrand/mm-memory_hotplug-selective-merging-of-system-ram-resources/20200910-171630
base:7204eaa2c1f509066486f488c9dcb065d7484494
:: branch date: 9 hours ago
:: commit date: 9 hours ago
config: powerpc-randconfig-r011-20200909 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
0a5dc7effb191eff740e0e7ae7bd8e1f6bdb3ad9)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install powerpc cross compiling tool for clang build
# apt-get install binutils-powerpc-linux-gnu
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   In file included from arch/powerpc/kernel/asm-offsets.c:14:
   In file included from include/linux/compat.h:17:
   In file included from include/linux/fs.h:15:
   In file included from include/linux/radix-tree.h:18:
   In file included from include/linux/xarray.h:14:
   In file included from include/linux/gfp.h:6:
   In file included from include/linux/mmzone.h:853:
   include/linux/memory_hotplug.h:354:55: error: unknown type name 'mhp_t'
   extern int __add_memory(int nid, u64 start, u64 size, mhp_t mhp_flags);
 ^
   include/linux/memory_hotplug.h:355:53: error: unknown type name 'mhp_t'
   extern int add_memory(int nid, u64 start, u64 size, mhp_t mhp_flags);
   ^
   include/linux/memory_hotplug.h:357:11: error: unknown type name 'mhp_t'
  mhp_t mhp_flags);
  ^
   include/linux/memory_hotplug.h:360:10: error: unknown type name 'mhp_t'
mhp_t mhp_flags);
^
   In file included from arch/powerpc/kernel/asm-offsets.c:21:
>> include/linux/mman.h:137:9: warning: division by zero is undefined 
>> [-Wdivision-by-zero]
  _calc_vm_trans(flags, MAP_LOCKED, VM_LOCKED) |
  ^~~~
   include/linux/mman.h:115:21: note: expanded from macro '_calc_vm_trans'
  : ((x) & (bit1)) / ((bit1) / (bit2
   ^ ~
   include/linux/mman.h:138:9: warning: division by zero is undefined 
[-Wdivision-by-zero]
  _calc_vm_trans(flags, MAP_SYNC,   VM_SYNC  );
  ^~~~
   include/linux/mman.h:115:21: note: expanded from macro '_calc_vm_trans'
  : ((x) & (bit1)) / ((bit1) / (bit2
   ^ ~
   2 warnings and 4 errors generated.
   make[2]: *** [scripts/Makefile.build:117: arch/powerpc/kernel/asm-offsets.s] 
Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [Makefile:1196: prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:185: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.

# 
https://github.com/0day-ci/linux/commit/d88270d1c0783a7f99f24a85692be90fd2ae0d7d
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
David-Hildenbrand/mm-memory_hotplug-selective-merging-of-system-ram-resources/20200910-171630
git checkout d88270d1c0783a7f99f24a85692be90fd2ae0d7d
vim +137 include/linux/mman.h

^1da177e4c3f41 Linus Torvalds  2005-04-16  128  
^1da177e4c3f41 Linus Torvalds  2005-04-16  129  /*
^1da177e4c3f41 Linus Torvalds  2005-04-16  130   * Combine the mmap "flags" 
argument into "vm_flags" used internally.
^1da177e4c3f41 Linus Torvalds  2005-04-16  131   */
^1da177e4c3f41 Linus Torvalds  2005-04-16  132  static inline unsigned long
^1da177e4c3f41 Linus Torvalds  2005-04-16  133  calc_vm_flag_bits(unsigned long 
flags)
^1da177e4c3f41 Linus Torvalds  2005-04-16  134  {
^1da177e4c3f41 Linus Torvalds  2005-04-16  135  return 
_calc_vm_trans(flags, MAP_GROWSDOWN,  VM_GROWSDOWN ) |
^1da177e4c3f41 Linus Torvalds  2005-04-16  136 
_calc_vm_trans(flags, MAP_DENYWRITE,  VM_DENYWRITE ) |
b6fb293f2497a9 Jan Kara2017-11-01 @137

Re: [PATCH v4] i2c: virtio: add a virtio i2c frontend driver

[kernel test robot]

Hi Jie,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on wsa/i2c/for-next]
[also build test ERROR on vhost/linux-next linus/master linux/master v5.9 
next-20201009]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Jie-Deng/i2c-virtio-add-a-virtio-i2c-frontend-driver/20201012-095821
base:   https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git 
i2c/for-next
config: x86_64-randconfig-a004-20201012 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
9e72d3eaf38f217698f72cb8fdc969a6e72dad3a)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# 
https://github.com/0day-ci/linux/commit/152ef3f6057acca49f276933274b09df8880243d
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Jie-Deng/i2c-virtio-add-a-virtio-i2c-frontend-driver/20201012-095821
git checkout 152ef3f6057acca49f276933274b09df8880243d
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

>> error: include/uapi/linux/virtio_i2c.h: missing "WITH Linux-syscall-note" 
>> for SPDX-License-Identifier
   make[2]: *** [scripts/Makefile.headersinst:63: 
usr/include/linux/virtio_i2c.h] Error 1
   make[2]: Target '__headers' not remade because of errors.
   make[1]: *** [Makefile:1286: headers] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:185: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org


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Re: [PATCH 04/16] vhost: prep vhost_dev_init users to handle failures

[kernel test robot]

Hi Mike,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on vhost/linux-next]
[also build test WARNING on next-20201007]
[cannot apply to v5.9-rc8]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Mike-Christie/vhost-fix-scsi-cmd-handling-and-IOPs/20201008-045802
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
config: x86_64-randconfig-a016-20201008 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
4d1d8ae7100ec3c7e1709addb7b3ec6f9ad0b44f)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# 
https://github.com/0day-ci/linux/commit/7dc4d1082d406f391238a1897cb030f33c382bc3
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Mike-Christie/vhost-fix-scsi-cmd-handling-and-IOPs/20201008-045802
git checkout 7dc4d1082d406f391238a1897cb030f33c382bc3
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

>> drivers/vhost/vdpa.c:820:6: warning: variable 'r' is used uninitialized 
>> whenever 'if' condition is true [-Wsometimes-uninitialized]
   if (vhost_dev_init(dev, vqs, nvqs, 0, 0, 0, false,
   ^~
   drivers/vhost/vdpa.c:844:9: note: uninitialized use occurs here
   return r;
  ^
   drivers/vhost/vdpa.c:820:2: note: remove the 'if' if its condition is always 
false
   if (vhost_dev_init(dev, vqs, nvqs, 0, 0, 0, false,
   ^~
   drivers/vhost/vdpa.c:798:16: note: initialize the variable 'r' to silence 
this warning
   int nvqs, i, r, opened;
 ^
  = 0
   1 warning generated.

vim +820 drivers/vhost/vdpa.c

   792  
   793  static int vhost_vdpa_open(struct inode *inode, struct file *filep)
   794  {
   795  struct vhost_vdpa *v;
   796  struct vhost_dev *dev;
   797  struct vhost_virtqueue **vqs;
   798  int nvqs, i, r, opened;
   799  
   800  v = container_of(inode->i_cdev, struct vhost_vdpa, cdev);
   801  
   802  opened = atomic_cmpxchg(>opened, 0, 1);
   803  if (opened)
   804  return -EBUSY;
   805  
   806  nvqs = v->nvqs;
   807  vhost_vdpa_reset(v);
   808  
   809  vqs = kmalloc_array(nvqs, sizeof(*vqs), GFP_KERNEL);
   810  if (!vqs) {
   811  r = -ENOMEM;
   812  goto err;
   813  }
   814  
   815  dev = >vdev;
   816  for (i = 0; i < nvqs; i++) {
   817  vqs[i] = >vqs[i];
   818  vqs[i]->handle_kick = handle_vq_kick;
   819  }
 > 820  if (vhost_dev_init(dev, vqs, nvqs, 0, 0, 0, false,
   821 vhost_vdpa_process_iotlb_msg))
   822  goto err_dev_init;
   823  
   824  dev->iotlb = vhost_iotlb_alloc(0, 0);
   825  if (!dev->iotlb) {
   826  r = -ENOMEM;
   827  goto err_init_iotlb;
   828  }
   829  
   830  r = vhost_vdpa_alloc_domain(v);
   831  if (r)
   832  goto err_init_iotlb;
   833  
   834  filep->private_data = v;
   835  
   836  return 0;
   837  
   838  err_init_iotlb:
   839  vhost_dev_cleanup(>vdev);
   840  err_dev_init:
   841  kfree(vqs);
   842  err:
   843  atomic_dec(>opened);
   844  return r;
   845  }
   846  

---
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Re: [PATCH 14/16] vhost: poll support support multiple workers

[kernel test robot]

Hi Mike,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on vhost/linux-next]
[also build test ERROR on next-20201007]
[cannot apply to v5.9-rc8]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Mike-Christie/vhost-fix-scsi-cmd-handling-and-IOPs/20201008-045802
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
config: m68k-allyesconfig (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# 
https://github.com/0day-ci/linux/commit/c9bcafefcac3c32ade0ba533609d7b1ddc343c54
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Mike-Christie/vhost-fix-scsi-cmd-handling-and-IOPs/20201008-045802
git checkout c9bcafefcac3c32ade0ba533609d7b1ddc343c54
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=m68k 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

>> m68k-linux-ld: drivers/vhost/scsi.o:(.bss+0x0): multiple definition of `vq'; 
>> drivers/vhost/net.o:(.bss+0x0): first defined here
   m68k-linux-ld: drivers/vhost/vsock.o:(.bss+0x0): multiple definition of 
`vq'; drivers/vhost/net.o:(.bss+0x0): first defined here
   m68k-linux-ld: drivers/vhost/vdpa.o:(.bss+0x0): multiple definition of `vq'; 
drivers/vhost/net.o:(.bss+0x0): first defined here
   m68k-linux-ld: drivers/vhost/vhost.o:(.bss+0x0): multiple definition of 
`vq'; drivers/vhost/net.o:(.bss+0x0): first defined here

---
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Re: [PATCH V2 3/3] vdpa_sim: implement get_iova_range()

[kernel test robot]

Hi Jason,

I love your patch! Perhaps something to improve:

[auto build test WARNING on vhost/linux-next]
[also build test WARNING on linus/master v5.9-rc1 next-20200821]
[cannot apply to linux/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Jason-Wang/vDPA-API-for-reporting-IOVA-range/20200821-173030
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
config: ia64-allmodconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=ia64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

>> drivers/vdpa/vdpa_sim/vdpa_sim.c:577:24: warning: no previous prototype for 
>> 'vdpasim_get_iova_range' [-Wmissing-prototypes]
 577 | struct vdpa_iova_range vdpasim_get_iova_range(struct vdpa_device 
*vdpa)
 |^~

# 
https://github.com/0day-ci/linux/commit/fba5ff6281e9d46144860bcc558068b5516e5e62
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Jason-Wang/vDPA-API-for-reporting-IOVA-range/20200821-173030
git checkout fba5ff6281e9d46144860bcc558068b5516e5e62
vim +/vdpasim_get_iova_range +577 drivers/vdpa/vdpa_sim/vdpa_sim.c

   576  
 > 577  struct vdpa_iova_range vdpasim_get_iova_range(struct vdpa_device *vdpa)
   578  {
   579  struct vdpa_iova_range range = {
   580  .first = 0ULL,
   581  .last = ULLONG_MAX,
   582  };
   583  
   584  return range;
   585  }
   586  

---
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[RFC PATCH] vdpa_sim: vdpasim_get_iova_range() can be static

[kernel test robot]

Signed-off-by: kernel test robot 
---
 vdpa_sim.c |2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index 89854e17c3c27b..ff6c9fd8d879bd 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
@@ -574,7 +574,7 @@ static u32 vdpasim_get_generation(struct vdpa_device *vdpa)
return vdpasim->generation;
 }
 
-struct vdpa_iova_range vdpasim_get_iova_range(struct vdpa_device *vdpa)
+static struct vdpa_iova_range vdpasim_get_iova_range(struct vdpa_device *vdpa)
 {
struct vdpa_iova_range range = {
.first = 0ULL,
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Re: [PATCH V2 3/3] vdpa_sim: implement get_iova_range()

[kernel test robot]

Hi Jason,

I love your patch! Perhaps something to improve:

[auto build test WARNING on vhost/linux-next]
[also build test WARNING on linus/master v5.9-rc1 next-20200821]
[cannot apply to linux/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Jason-Wang/vDPA-API-for-reporting-IOVA-range/20200821-173030
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
config: x86_64-randconfig-a002-20200820 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
b587ca93be114d07ec3bf654add97d7872325281)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

>> drivers/vdpa/vdpa_sim/vdpa_sim.c:577:24: warning: no previous prototype for 
>> function 'vdpasim_get_iova_range' [-Wmissing-prototypes]
   struct vdpa_iova_range vdpasim_get_iova_range(struct vdpa_device *vdpa)
  ^
   drivers/vdpa/vdpa_sim/vdpa_sim.c:577:1: note: declare 'static' if the 
function is not intended to be used outside of this translation unit
   struct vdpa_iova_range vdpasim_get_iova_range(struct vdpa_device *vdpa)
   ^
   static 
   drivers/vdpa/vdpa_sim/vdpa_sim.c:89:19: warning: unused function 
'vdpasim16_to_cpu' [-Wunused-function]
   static inline u16 vdpasim16_to_cpu(struct vdpasim *vdpasim, __virtio16 val)
 ^
   2 warnings generated.

# 
https://github.com/0day-ci/linux/commit/fba5ff6281e9d46144860bcc558068b5516e5e62
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Jason-Wang/vDPA-API-for-reporting-IOVA-range/20200821-173030
git checkout fba5ff6281e9d46144860bcc558068b5516e5e62
vim +/vdpasim_get_iova_range +577 drivers/vdpa/vdpa_sim/vdpa_sim.c

   576  
 > 577  struct vdpa_iova_range vdpasim_get_iova_range(struct vdpa_device *vdpa)
   578  {
   579  struct vdpa_iova_range range = {
   580  .first = 0ULL,
   581  .last = ULLONG_MAX,
   582  };
   583  
   584  return range;
   585  }
   586  

---
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Re: [PATCH V2 3/3] vdpa_sim: implement get_iova_range()

[kernel test robot]

Hi Jason,

I love your patch! Perhaps something to improve:

[auto build test WARNING on vhost/linux-next]
[also build test WARNING on linus/master v5.9-rc1 next-20200821]
[cannot apply to linux/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Jason-Wang/vDPA-API-for-reporting-IOVA-range/20200821-173030
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
config: arm-randconfig-r026-20200820 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
b587ca93be114d07ec3bf654add97d7872325281)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

>> drivers/vdpa/vdpa_sim/vdpa_sim.c:577:24: warning: no previous prototype for 
>> function 'vdpasim_get_iova_range' [-Wmissing-prototypes]
   struct vdpa_iova_range vdpasim_get_iova_range(struct vdpa_device *vdpa)
  ^
   drivers/vdpa/vdpa_sim/vdpa_sim.c:577:1: note: declare 'static' if the 
function is not intended to be used outside of this translation unit
   struct vdpa_iova_range vdpasim_get_iova_range(struct vdpa_device *vdpa)
   ^
   static 
   drivers/vdpa/vdpa_sim/vdpa_sim.c:89:19: warning: unused function 
'vdpasim16_to_cpu' [-Wunused-function]
   static inline u16 vdpasim16_to_cpu(struct vdpasim *vdpasim, __virtio16 val)
 ^
   2 warnings generated.

# 
https://github.com/0day-ci/linux/commit/fba5ff6281e9d46144860bcc558068b5516e5e62
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Jason-Wang/vDPA-API-for-reporting-IOVA-range/20200821-173030
git checkout fba5ff6281e9d46144860bcc558068b5516e5e62
vim +/vdpasim_get_iova_range +577 drivers/vdpa/vdpa_sim/vdpa_sim.c

   576  
 > 577  struct vdpa_iova_range vdpasim_get_iova_range(struct vdpa_device *vdpa)
   578  {
   579  struct vdpa_iova_range range = {
   580  .first = 0ULL,
   581  .last = ULLONG_MAX,
   582  };
   583  
   584  return range;
   585  }
   586  

---
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Re: [PATCH V2 3/3] vdpa_sim: implement get_iova_range()

[kernel test robot]

Hi Jason,

I love your patch! Perhaps something to improve:

[auto build test WARNING on vhost/linux-next]
[also build test WARNING on linus/master v5.9-rc1 next-20200821]
[cannot apply to linux/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Jason-Wang/vDPA-API-for-reporting-IOVA-range/20200821-173030
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
config: i386-randconfig-s001-20200820 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.2-191-g10164920-dirty
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 


sparse warnings: (new ones prefixed by >>)

>> drivers/vdpa/vdpa_sim/vdpa_sim.c:577:24: sparse: sparse: symbol 
>> 'vdpasim_get_iova_range' was not declared. Should it be static?

Please review and possibly fold the followup patch.

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Re: [PATCH 3/8] vhost scsi: alloc cmds per vq instead of session

[kernel test robot]

Hi Mike,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on vhost/linux-next]
[also build test WARNING on v5.9-rc6 next-20200921]
[cannot apply to target/for-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Mike-Christie/vhost-scsi-fixes-and-cleanups/20200922-031251
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
config: s390-randconfig-r022-20200920 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
4e8c028158b56d9c2142a62464e8e0686bde3584)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=s390 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   include/asm-generic/io.h:490:45: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   val = __le32_to_cpu(__raw_readl(PCI_IOBASE + addr));
   ~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro 
'__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
 ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
   ___constant_swab32(x) : \
  ^
   include/uapi/linux/swab.h:20:12: note: expanded from macro 
'___constant_swab32'
   (((__u32)(x) & (__u32)0xff00UL) <<  8) |\
 ^
   In file included from drivers/vhost/scsi.c:45:
   In file included from include/uapi/linux/vhost.h:14:
   In file included from include/uapi/linux/vhost_types.h:16:
   In file included from include/linux/virtio_config.h:7:
   In file included from include/linux/virtio.h:7:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:72:
   include/asm-generic/io.h:490:45: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   val = __le32_to_cpu(__raw_readl(PCI_IOBASE + addr));
   ~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro 
'__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
 ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
   ___constant_swab32(x) : \
  ^
   include/uapi/linux/swab.h:21:12: note: expanded from macro 
'___constant_swab32'
   (((__u32)(x) & (__u32)0x00ffUL) >>  8) |\
 ^
   In file included from drivers/vhost/scsi.c:45:
   In file included from include/uapi/linux/vhost.h:14:
   In file included from include/uapi/linux/vhost_types.h:16:
   In file included from include/linux/virtio_config.h:7:
   In file included from include/linux/virtio.h:7:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:72:
   include/asm-generic/io.h:490:45: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   val = __le32_to_cpu(__raw_readl(PCI_IOBASE + addr));
   ~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro 
'__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
 ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
   ___constant_swab32(x) : \
  ^
   include/uapi/linux/swab.h:22:12: note: expanded from macro 
'___constant_swab32'
   (((__u32)(x) & (__u32)0xff00UL) >> 24)))
 ^
   In file included from drivers/vhost/scsi.c:45:
   In file included from include/uapi/linux/vhost.h:14:
   In file included from include/uapi/linux/vhost_types.h:16:
   In file included from include/linux/virtio_config.h:7:
   In file included from include/linux/virtio.h:7:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:72:
   include/asm-generic/io.h

Re: [PATCH 04/17] vhost: prep vhost_dev_init users to handle failures

[kernel test robot]

Hi Mike,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on vhost/linux-next]
[also build test WARNING on v5.9 next-20201021]
[cannot apply to target/for-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Mike-Christie/vhost-fix-scsi-cmd-handling-and-cgroup-support/20201022-083844
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
config: x86_64-randconfig-a013-20201021 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
ee6abef5323d59b983129bf3514ef6775d1d6cd5)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# 
https://github.com/0day-ci/linux/commit/6e1629548d318c2c9af7490379a3c9d7e3cba0d5
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Mike-Christie/vhost-fix-scsi-cmd-handling-and-cgroup-support/20201022-083844
git checkout 6e1629548d318c2c9af7490379a3c9d7e3cba0d5
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

>> drivers/vhost/vsock.c:633:6: warning: variable 'ret' is used uninitialized 
>> whenever 'if' condition is true [-Wsometimes-uninitialized]
   if (vhost_dev_init(>dev, vqs, ARRAY_SIZE(vsock->vqs),
   ^~~~
   drivers/vhost/vsock.c:648:9: note: uninitialized use occurs here
   return ret;
  ^~~
   drivers/vhost/vsock.c:633:2: note: remove the 'if' if its condition is 
always false
   if (vhost_dev_init(>dev, vqs, ARRAY_SIZE(vsock->vqs),
   ^~~~
   drivers/vhost/vsock.c:609:9: note: initialize the variable 'ret' to silence 
this warning
   int ret;
  ^
   = 0
   1 warning generated.

vim +633 drivers/vhost/vsock.c

   604  
   605  static int vhost_vsock_dev_open(struct inode *inode, struct file *file)
   606  {
   607  struct vhost_virtqueue **vqs;
   608  struct vhost_vsock *vsock;
   609  int ret;
   610  
   611  /* This struct is large and allocation could fail, fall back to 
vmalloc
   612   * if there is no other way.
   613   */
   614  vsock = kvmalloc(sizeof(*vsock), GFP_KERNEL | 
__GFP_RETRY_MAYFAIL);
   615  if (!vsock)
   616  return -ENOMEM;
   617  
   618  vqs = kmalloc_array(ARRAY_SIZE(vsock->vqs), sizeof(*vqs), 
GFP_KERNEL);
   619  if (!vqs) {
   620  ret = -ENOMEM;
   621  goto out;
   622  }
   623  
   624  vsock->guest_cid = 0; /* no CID assigned yet */
   625  
   626  atomic_set(>queued_replies, 0);
   627  
   628  vqs[VSOCK_VQ_TX] = >vqs[VSOCK_VQ_TX];
   629  vqs[VSOCK_VQ_RX] = >vqs[VSOCK_VQ_RX];
   630  vsock->vqs[VSOCK_VQ_TX].handle_kick = 
vhost_vsock_handle_tx_kick;
   631  vsock->vqs[VSOCK_VQ_RX].handle_kick = 
vhost_vsock_handle_rx_kick;
   632  
 > 633  if (vhost_dev_init(>dev, vqs, ARRAY_SIZE(vsock->vqs),
   634 UIO_MAXIOV, VHOST_VSOCK_PKT_WEIGHT,
   635 VHOST_VSOCK_WEIGHT, true, NULL))
   636  goto err_dev_init;
   637  
   638  file->private_data = vsock;
   639  spin_lock_init(>send_pkt_list_lock);
   640  INIT_LIST_HEAD(>send_pkt_list);
   641  vhost_work_init(>send_pkt_work, 
vhost_transport_send_pkt_work);
   642  return 0;
   643  
   644  err_dev_init:
   645  kfree(vqs);
   646  out:
   647  vhost_vsock_free(vsock);
   648  return ret;
   649  }
   650  

---
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Re: [Intel-gfx] [PATCH 5/5] drm/: Constify struct drm_driver

[kernel test robot]

Hi Daniel,

I love your patch! Perhaps something to improve:

[auto build test WARNING on drm-tip/drm-tip]
[cannot apply to drm-intel/for-linux-next drm-exynos/exynos-drm-next 
linus/master v5.9 next-20201023]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Daniel-Vetter/drm-radeon-Stop-changing-the-drm_driver-struct/20201023-203020
base:   git://anongit.freedesktop.org/drm/drm-tip drm-tip
config: arm64-randconfig-r011-20201022 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# 
https://github.com/0day-ci/linux/commit/9e2fdb03c9047a5d4b24b3e95f0370bcc59eec5e
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Daniel-Vetter/drm-radeon-Stop-changing-the-drm_driver-struct/20201023-203020
git checkout 9e2fdb03c9047a5d4b24b3e95f0370bcc59eec5e
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=arm64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c:921:1: warning: 'static' is 
>> not at beginning of declaration [-Wold-style-declaration]
 921 | const static struct drm_driver ade_driver = {
 | ^

vim +/static +921 drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c

   920  
 > 921  const static struct drm_driver ade_driver = {
   922  .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
   923  .fops = _fops,
   924  DRM_GEM_CMA_DRIVER_OPS,
   925  .name = "kirin",
   926  .desc = "Hisilicon Kirin620 SoC DRM Driver",
   927  .date = "20150718",
   928  .major = 1,
   929  .minor = 0,
   930  };
   931  

---
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Re: [PATCH V3 2/3] vhost: vdpa: report iova range

[kernel test robot]

Hi Jason,

I love your patch! Perhaps something to improve:

[auto build test WARNING on vhost/linux-next]
[also build test WARNING on linus/master v5.9 next-20201023]
[cannot apply to linux/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Jason-Wang/vDPA-API-for-reporting-IOVA-range/20201023-102708
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
config: m68k-randconfig-r034-20201022 (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# 
https://github.com/0day-ci/linux/commit/446e7b97838ebf87f1acd61580137716fdad104a
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Jason-Wang/vDPA-API-for-reporting-IOVA-range/20201023-102708
git checkout 446e7b97838ebf87f1acd61580137716fdad104a
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=m68k 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   drivers/vhost/vdpa.c: In function 'vhost_vdpa_setup_vq_irq':
   drivers/vhost/vdpa.c:94:6: warning: variable 'ret' set but not used 
[-Wunused-but-set-variable]
  94 |  int ret, irq;
 |  ^~~
   drivers/vhost/vdpa.c: In function 'vhost_vdpa_unlocked_ioctl':
>> drivers/vhost/vdpa.c:483:5: warning: this statement may fall through 
>> [-Wimplicit-fallthrough=]
 483 |   r = copy_to_user(featurep, , sizeof(features));
 |   ~~^
   drivers/vhost/vdpa.c:484:2: note: here
 484 |  case VHOST_VDPA_GET_IOVA_RANGE:
 |  ^~~~

vim +483 drivers/vhost/vdpa.c

4c8cf31885f69e8 Tiwei Bie2020-03-26  426  
4c8cf31885f69e8 Tiwei Bie2020-03-26  427  static long 
vhost_vdpa_unlocked_ioctl(struct file *filep,
4c8cf31885f69e8 Tiwei Bie2020-03-26  428  
unsigned int cmd, unsigned long arg)
4c8cf31885f69e8 Tiwei Bie2020-03-26  429  {
4c8cf31885f69e8 Tiwei Bie2020-03-26  430struct vhost_vdpa *v = 
filep->private_data;
4c8cf31885f69e8 Tiwei Bie2020-03-26  431struct vhost_dev *d = >vdev;
4c8cf31885f69e8 Tiwei Bie2020-03-26  432void __user *argp = (void 
__user *)arg;
a127c5bbb6a8eee Jason Wang   2020-09-07  433u64 __user *featurep = argp;
a127c5bbb6a8eee Jason Wang   2020-09-07  434u64 features;
4c8cf31885f69e8 Tiwei Bie2020-03-26  435long r;
4c8cf31885f69e8 Tiwei Bie2020-03-26  436  
a127c5bbb6a8eee Jason Wang   2020-09-07  437if (cmd == 
VHOST_SET_BACKEND_FEATURES) {
a127c5bbb6a8eee Jason Wang   2020-09-07  438r = 
copy_from_user(, featurep, sizeof(features));
a127c5bbb6a8eee Jason Wang   2020-09-07  439if (r)
a127c5bbb6a8eee Jason Wang   2020-09-07  440return r;
a127c5bbb6a8eee Jason Wang   2020-09-07  441if (features & 
~VHOST_VDPA_BACKEND_FEATURES)
a127c5bbb6a8eee Jason Wang   2020-09-07  442return 
-EOPNOTSUPP;
a127c5bbb6a8eee Jason Wang   2020-09-07  443
vhost_set_backend_features(>vdev, features);
a127c5bbb6a8eee Jason Wang   2020-09-07  444return 0;
a127c5bbb6a8eee Jason Wang   2020-09-07  445}
a127c5bbb6a8eee Jason Wang   2020-09-07  446  
4c8cf31885f69e8 Tiwei Bie2020-03-26  447mutex_lock(>mutex);
4c8cf31885f69e8 Tiwei Bie2020-03-26  448  
4c8cf31885f69e8 Tiwei Bie2020-03-26  449switch (cmd) {
4c8cf31885f69e8 Tiwei Bie2020-03-26  450case VHOST_VDPA_GET_DEVICE_ID:
4c8cf31885f69e8 Tiwei Bie2020-03-26  451r = 
vhost_vdpa_get_device_id(v, argp);
4c8cf31885f69e8 Tiwei Bie2020-03-26  452break;
4c8cf31885f69e8 Tiwei Bie2020-03-26  453case VHOST_VDPA_GET_STATUS:
4c8cf31885f69e8 Tiwei Bie2020-03-26  454r = 
vhost_vdpa_get_status(v, argp);
4c8cf31885f69e8 Tiwei Bie2020-03-26  455break;
4c8cf31885f69e8 Tiwei Bie2020-03-26  456case VHOST_VDPA_SET_STATUS:
4c8cf31885f69e8 Tiwei Bie2020-03-26  457r = 
vhost_vdpa_set_status(v, argp);
4c8cf31885f69e8 Tiwei Bie2020-03-26  458break;
4c8cf31885f69e8 Tiwei Bie2020-03-26  459case VHOST_VDPA_GET_CONFIG:
4c8cf31885f69e8 Tiwei Bie2020-03-26  460r = 
vhost_vdpa_get_config(v, argp);
4c8cf31885f69e8 Tiwei Bie2020-03-26  461break;
4c8cf31885f69e8 Tiwei Bie2020-03-26  462case VHOST_VDPA_SET_CONFIG:
4c8cf31885f69e8 Tiwei Bie2020-03-26  463r = 
vhost_vdpa_se

Re: [PATCH v9 30/84] KVM: x86: export kvm_vcpu_ioctl_x86_get_xsave()

[kernel test robot]

Hi "Adalbert,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on 3d9fdc252b52023260de1d12399cb3157ed28c07]

url:
https://github.com/0day-ci/linux/commits/Adalbert-Laz-r/VM-introspection/20200722-052036
base:3d9fdc252b52023260de1d12399cb3157ed28c07
config: mips-allmodconfig (attached as .config)
compiler: mips-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=mips 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   In file included from arch/mips/kernel/asm-offsets.c:24:
>> include/linux/kvm_host.h:887:14: warning: 'struct kvm_xsave' declared inside 
>> parameter list will not be visible outside of this definition or declaration
 887 |   struct kvm_xsave *guest_xsave);
 |  ^
   arch/mips/kernel/asm-offsets.c:26:6: warning: no previous prototype for 
'output_ptreg_defines' [-Wmissing-prototypes]
  26 | void output_ptreg_defines(void)
 |  ^~~~
   arch/mips/kernel/asm-offsets.c:78:6: warning: no previous prototype for 
'output_task_defines' [-Wmissing-prototypes]
  78 | void output_task_defines(void)
 |  ^~~
   arch/mips/kernel/asm-offsets.c:93:6: warning: no previous prototype for 
'output_thread_info_defines' [-Wmissing-prototypes]
  93 | void output_thread_info_defines(void)
 |  ^~
   arch/mips/kernel/asm-offsets.c:110:6: warning: no previous prototype for 
'output_thread_defines' [-Wmissing-prototypes]
 110 | void output_thread_defines(void)
 |  ^
   arch/mips/kernel/asm-offsets.c:138:6: warning: no previous prototype for 
'output_thread_fpu_defines' [-Wmissing-prototypes]
 138 | void output_thread_fpu_defines(void)
 |  ^
   arch/mips/kernel/asm-offsets.c:181:6: warning: no previous prototype for 
'output_mm_defines' [-Wmissing-prototypes]
 181 | void output_mm_defines(void)
 |  ^
   arch/mips/kernel/asm-offsets.c:220:6: warning: no previous prototype for 
'output_sc_defines' [-Wmissing-prototypes]
 220 | void output_sc_defines(void)
 |  ^
   arch/mips/kernel/asm-offsets.c:255:6: warning: no previous prototype for 
'output_signal_defined' [-Wmissing-prototypes]
 255 | void output_signal_defined(void)
 |  ^
   arch/mips/kernel/asm-offsets.c:322:6: warning: no previous prototype for 
'output_pbe_defines' [-Wmissing-prototypes]
 322 | void output_pbe_defines(void)
 |  ^~
   arch/mips/kernel/asm-offsets.c:334:6: warning: no previous prototype for 
'output_pm_defines' [-Wmissing-prototypes]
 334 | void output_pm_defines(void)
 |  ^
   arch/mips/kernel/asm-offsets.c:348:6: warning: no previous prototype for 
'output_kvm_defines' [-Wmissing-prototypes]
 348 | void output_kvm_defines(void)
 |  ^~
   arch/mips/kernel/asm-offsets.c:392:6: warning: no previous prototype for 
'output_cps_defines' [-Wmissing-prototypes]
 392 | void output_cps_defines(void)
 |  ^~
--
   In file included from arch/mips/kernel/asm-offsets.c:24:
>> include/linux/kvm_host.h:887:14: warning: 'struct kvm_xsave' declared inside 
>> parameter list will not be visible outside of this definition or declaration
 887 |   struct kvm_xsave *guest_xsave);
 |  ^
   arch/mips/kernel/asm-offsets.c:26:6: warning: no previous prototype for 
'output_ptreg_defines' [-Wmissing-prototypes]
  26 | void output_ptreg_defines(void)
 |  ^~~~
   arch/mips/kernel/asm-offsets.c:78:6: warning: no previous prototype for 
'output_task_defines' [-Wmissing-prototypes]
  78 | void output_task_defines(void)
 |  ^~~
   arch/mips/kernel/asm-offsets.c:93:6: warning: no previous prototype for 
'output_thread_info_defines' [-Wmissing-prototypes]
  93 | void output_thread_info_defines(void)
 |  ^~
   arch/mips/kernel/asm-offsets.c:110:6: warning: no previous prototype for 
'output_thread_defines' [-Wmissing-prototypes]
 110 | void output_thread_defines(void)
 |  ^
   arch/mips/kernel/asm-offsets.c:138:6: warning: no previous prototype for 
'output_thread_fpu_defines' [-Wmissing-prototypes]
 138 | void output_thread_fpu_defines(void)
 |  ^
   arch/mips/kernel/asm-offsets.c:18

Re: [PATCH v9 69/84] KVM: introspection: add KVMI_VCPU_GET_XCR

[kernel test robot]

Hi "Adalbert,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on 3d9fdc252b52023260de1d12399cb3157ed28c07]

url:
https://github.com/0day-ci/linux/commits/Adalbert-Laz-r/VM-introspection/20200722-052036
base:3d9fdc252b52023260de1d12399cb3157ed28c07
config: x86_64-randconfig-s022-20200719 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-14) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.2-49-g707c5017-dirty
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

   In file included from :32:
>> ./usr/include/asm/kvmi.h:99:2: error: unknown type name 'u64'
  99 |  u64 value;
 |  ^~~

---
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[vhost:vhost 42/49] drivers/rpmsg/virtio_rpmsg_bus.c:28:10: fatal error: 'linux/virtio_rpmsg.h' file not found

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost
head:   dc7b1c0685d566bdd756b8a8f05ad45d28659c01
commit: bba6f4f52c31af1ce4ebcc063afa08eb063b3d2c [42/49] rpmsg: move common 
structures and defines to headers
config: mips-randconfig-r014-20200803 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
8c39e70679e93da3af9f881d314940c570d5d822)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install mips cross compiling tool for clang build
# apt-get install binutils-mips-linux-gnu
git checkout bba6f4f52c31af1ce4ebcc063afa08eb063b3d2c
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

>> drivers/rpmsg/virtio_rpmsg_bus.c:28:10: fatal error: 'linux/virtio_rpmsg.h' 
>> file not found
   #include 
^~
   1 error generated.

vim +28 drivers/rpmsg/virtio_rpmsg_bus.c

13  
14  #include 
15  #include 
16  #include 
17  #include 
18  #include 
19  #include 
20  #include 
21  #include 
22  #include 
23  #include 
24  #include 
25  #include 
26  #include 
27  #include 
  > 28  #include 
29  #include 
30  #include 
31  

---
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[vhost:vhost 32/65] drivers/virtio/virtio_input.c:247:3: warning: comparison of distinct pointer types ('typeof (_Generic((virtio_cread_v), __u8: (virtio_cread_v), __le16: (__builtin_constant_p((__u16

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost
head:   1a86b377aa2147a7c866b03142e848c18e5f3cb8
commit: b025584098e621d88894d28e80af686958e273af [32/65] virtio_input: convert 
to LE accessors
config: powerpc-randconfig-r031-20200805 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
076b120bebfd727b502208601012a44ab2e1028e)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install powerpc cross compiling tool for clang build
# apt-get install binutils-powerpc-linux-gnu
git checkout b025584098e621d88894d28e80af686958e273af
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

>> drivers/virtio/virtio_input.c:247:3: warning: comparison of distinct pointer 
>> types ('typeof (_Generic((virtio_cread_v), __u8: (virtio_cread_v), __le16: 
>> (__builtin_constant_p((__u16)((__u16)(__le16)(virtio_cread_v))) ? 
>> ((__u16)__u16)((__u16)(__le16)(virtio_cread_v)) & (__u16)255U) << 8) | 
>> (((__u16)((__u16)(__le16)(virtio_cread_v)) & (__u16)65280U) >> 8))) : 
>> __fswab16((__u16)(__le16)(virtio_cread_v))), __le32: 
>> (__builtin_constant_p((__u32)((__u32)(__le32)(virtio_cread_v))) ? 
>> ((__u32)__u32)((__u32)(__le32)(virtio_cread_v)) & (__u32)255UL) << 24) | 
>> (((__u32)((__u32)(__le32)(virtio_cread_v)) & (__u32)65280UL) << 8) | 
>> (((__u32)((__u32)(__le32)(virtio_cread_v)) & (__u32)16711680UL) >> 8) | 
>> (((__u32)((__u32)(__le32)(virtio_cread_v)) & (__u32)4278190080UL) >> 24))) : 
>> __fswab32((__u32)(__le32)(virtio_cread_v))), __le64: 
>> (__builtin_constant_p((__u64)((__u64)(__le64)(virtio_cread_v))) ? 
>> ((__u64)__u64)((__u64)(__le64)(virtio_cread_v)) & (__u64)255ULL) << 56) 
>> | (((__u64)((__u64)(__le64)(virtio_cread_v)) & (__u64)65280ULL) << 40) | 
>> (((__u64)((__u64)(__le64)(virtio_cread_v)) & (__u64)16711680ULL) << 24) | 
>> (((__u64)((__u64)(__le64)(virtio_cread_v)) & (__u64)4278190080ULL) << 8) | 
>> (((__u64)((__u64)(__le64)(virtio_cread_v)) & (__u64)1095216660480ULL) >> 8) 
>> | (((__u64)((__u64)(__le64)(virtio_cread_v)) & (__u64)280375465082880ULL) >> 
>> 24) | (((__u64)((__u64)(__le64)(virtio_cread_v)) & 
>> (__u64)71776119061217280ULL) >> 40) | 
>> (((__u64)((__u64)(__le64)(virtio_cread_v)) & (__u64)18374686479671623680ULL) 
>> >> 56))) : __fswab64((__u64)(__le64)(virtio_cread_v) *' (aka 'int *') 
>> and 'typeof (*(>idev->id.bustype)) *' (aka 'unsigned short *')) 
>> [-Wcompare-distinct-pointer-types]
   virtio_cread_le(vi->vdev, struct virtio_input_config,
   ^
   include/linux/virtio_config.h:405:3: note: expanded from macro 
'virtio_cread_le'
   typecheck(typeof(virtio_le_to_cpu(virtio_cread_v)), *(ptr)); 
\
   ^~~
   include/linux/typecheck.h:12:18: note: expanded from macro 'typecheck'
   (void)(&__dummy == &__dummy2); \
   ^  ~
   drivers/virtio/virtio_input.c:249:3: warning: comparison of distinct pointer 
types ('typeof (_Generic((virtio_cread_v), __u8: (virtio_cread_v), __le16: 
(__builtin_constant_p((__u16)((__u16)(__le16)(virtio_cread_v))) ? 
((__u16)__u16)((__u16)(__le16)(virtio_cread_v)) & (__u16)255U) << 8) | 
(((__u16)((__u16)(__le16)(virtio_cread_v)) & (__u16)65280U) >> 8))) : 
__fswab16((__u16)(__le16)(virtio_cread_v))), __le32: 
(__builtin_constant_p((__u32)((__u32)(__le32)(virtio_cread_v))) ? 
((__u32)__u32)((__u32)(__le32)(virtio_cread_v)) & (__u32)255UL) << 24) | 
(((__u32)((__u32)(__le32)(virtio_cread_v)) & (__u32)65280UL) << 8) | 
(((__u32)((__u32)(__le32)(virtio_cread_v)) & (__u32)16711680UL) >> 8) | 
(((__u32)((__u32)(__le32)(virtio_cread_v)) & (__u32)4278190080UL) >> 24))) : 
__fswab32((__u32)(__le32)(virtio_cread_v))), __le64: 
(__builtin_constant_p((__u64)((__u64)(__le64)(virtio_cread_v))) ? 
((__u64)__u64)((__u64)(__le64)(virtio_cread_v)) & (__u64)255ULL) << 56) | 
(((__u64)((__u64)(__le64)(virtio_cread_v)) & (__u64)65280ULL) << 40) | 
(((__u64)((__u64)(__le64)(virtio_cread_v)) & (__u64)16711680ULL) << 24) | 
(((__u64)((__u64)(__le64)(virtio_cread_v)) & (__u64)4278190080ULL) << 8) | 
(((__u

[vhost:vhost 32/52] include/linux/typecheck.h:12:18: warning: comparison of distinct pointer types lacks a cast

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost
head:   4c05433bc6fb4ae172270f0279be8ba89a3da64f
commit: b025584098e621d88894d28e80af686958e273af [32/52] virtio_input: convert 
to LE accessors
config: parisc-randconfig-r003-20200805 (attached as .config)
compiler: hppa-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout b025584098e621d88894d28e80af686958e273af
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=parisc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   In file included from include/linux/irqflags.h:15,
from include/asm-generic/cmpxchg-local.h:6,
from arch/parisc/include/asm/cmpxchg.h:89,
from arch/parisc/include/asm/atomic.h:10,
from include/linux/atomic.h:7,
from arch/parisc/include/asm/bitops.h:13,
from include/linux/bitops.h:29,
from include/linux/kernel.h:12,
from include/linux/list.h:9,
from include/linux/module.h:12,
from drivers/virtio/virtio_input.c:2:
   drivers/virtio/virtio_input.c: In function 'virtinput_probe':
>> include/linux/typecheck.h:12:18: warning: comparison of distinct pointer 
>> types lacks a cast
  12 |  (void)(&__dummy == &__dummy2); \
 |  ^~
   include/linux/virtio_config.h:405:3: note: in expansion of macro 'typecheck'
 405 |   typecheck(typeof(virtio_le_to_cpu(virtio_cread_v)), *(ptr)); \
 |   ^
   drivers/virtio/virtio_input.c:247:3: note: in expansion of macro 
'virtio_cread_le'
 247 |   virtio_cread_le(vi->vdev, struct virtio_input_config,
 |   ^~~
>> include/linux/typecheck.h:12:18: warning: comparison of distinct pointer 
>> types lacks a cast
  12 |  (void)(&__dummy == &__dummy2); \
 |  ^~
   include/linux/virtio_config.h:405:3: note: in expansion of macro 'typecheck'
 405 |   typecheck(typeof(virtio_le_to_cpu(virtio_cread_v)), *(ptr)); \
 |   ^
   drivers/virtio/virtio_input.c:249:3: note: in expansion of macro 
'virtio_cread_le'
 249 |   virtio_cread_le(vi->vdev, struct virtio_input_config,
 |   ^~~
>> include/linux/typecheck.h:12:18: warning: comparison of distinct pointer 
>> types lacks a cast
  12 |  (void)(&__dummy == &__dummy2); \
 |  ^~
   include/linux/virtio_config.h:405:3: note: in expansion of macro 'typecheck'
 405 |   typecheck(typeof(virtio_le_to_cpu(virtio_cread_v)), *(ptr)); \
 |   ^
   drivers/virtio/virtio_input.c:251:3: note: in expansion of macro 
'virtio_cread_le'
 251 |   virtio_cread_le(vi->vdev, struct virtio_input_config,
 |   ^~~
>> include/linux/typecheck.h:12:18: warning: comparison of distinct pointer 
>> types lacks a cast
  12 |  (void)(&__dummy == &__dummy2); \
 |  ^~
   include/linux/virtio_config.h:405:3: note: in expansion of macro 'typecheck'
 405 |   typecheck(typeof(virtio_le_to_cpu(virtio_cread_v)), *(ptr)); \
 |   ^
   drivers/virtio/virtio_input.c:253:3: note: in expansion of macro 
'virtio_cread_le'
 253 |   virtio_cread_le(vi->vdev, struct virtio_input_config,
 |   ^~~

vim +12 include/linux/typecheck.h

e0deaff470900a4 Andrew Morton 2008-07-25   4  
e0deaff470900a4 Andrew Morton 2008-07-25   5  /*
e0deaff470900a4 Andrew Morton 2008-07-25   6   * Check at compile time that 
something is of a particular type.
e0deaff470900a4 Andrew Morton 2008-07-25   7   * Always evaluates to 1 so you 
may use it easily in comparisons.
e0deaff470900a4 Andrew Morton 2008-07-25   8   */
e0deaff470900a4 Andrew Morton 2008-07-25   9  #define typecheck(type,x) \
e0deaff470900a4 Andrew Morton 2008-07-25  10  ({type __dummy; \
e0deaff470900a4 Andrew Morton 2008-07-25  11typeof(x) __dummy2; \
e0deaff470900a4 Andrew Morton 2008-07-25 @12(void)(&__dummy == &__dummy2); \
e0deaff470900a4 Andrew Morton 2008-07-25  131; \
e0deaff470900a4 Andrew Morton 2008-07-25  14  })
e0deaff470900a4 Andrew Morton 2008-07-25  15  

:: The code at line 12 was first introduced by commit
:: e0deaff470900a4c3222ca7139f6c9639e26a2f5 split the typecheck macros out 
of include/linux/kernel.h

:: TO: Andrew Morton 
:: CC: Linus Torvalds 

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org


.config.gz
Description: application/g

Re: [PATCH 6/8] powerpc/pseries: implement paravirt qspinlocks for SPLPAR

[kernel test robot]

Hi Nicholas,

I love your patch! Yet something to improve:

[auto build test ERROR on powerpc/next]
[also build test ERROR on tip/locking/core v5.8-rc3 next-20200702]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use  as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Nicholas-Piggin/powerpc-queued-spinlocks-and-rwlocks/20200702-155158
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-allyesconfig (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=powerpc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

   kernel/locking/lock_events.c:61:16: warning: no previous prototype for 
'lockevent_read' [-Wmissing-prototypes]
  61 | ssize_t __weak lockevent_read(struct file *file, char __user 
*user_buf,
 |^~
   kernel/locking/lock_events.c: In function 'skip_lockevent':
>> kernel/locking/lock_events.c:126:12: error: implicit declaration of function 
>> 'pv_is_native_spin_unlock' [-Werror=implicit-function-declaration]
 126 |   pv_on = !pv_is_native_spin_unlock();
 |^~~~
   cc1: some warnings being treated as errors

vim +/pv_is_native_spin_unlock +126 kernel/locking/lock_events.c

fb346fd9fc081c Waiman Long 2019-04-04   57  
fb346fd9fc081c Waiman Long 2019-04-04   58  /*
fb346fd9fc081c Waiman Long 2019-04-04   59   * The lockevent_read() function 
can be overridden.
fb346fd9fc081c Waiman Long 2019-04-04   60   */
fb346fd9fc081c Waiman Long 2019-04-04  @61  ssize_t __weak 
lockevent_read(struct file *file, char __user *user_buf,
fb346fd9fc081c Waiman Long 2019-04-04   62size_t 
count, loff_t *ppos)
fb346fd9fc081c Waiman Long 2019-04-04   63  {
fb346fd9fc081c Waiman Long 2019-04-04   64  char buf[64];
fb346fd9fc081c Waiman Long 2019-04-04   65  int cpu, id, len;
fb346fd9fc081c Waiman Long 2019-04-04   66  u64 sum = 0;
fb346fd9fc081c Waiman Long 2019-04-04   67  
fb346fd9fc081c Waiman Long 2019-04-04   68  /*
fb346fd9fc081c Waiman Long 2019-04-04   69   * Get the counter ID stored in 
file->f_inode->i_private
fb346fd9fc081c Waiman Long 2019-04-04   70   */
fb346fd9fc081c Waiman Long 2019-04-04   71  id = 
(long)file_inode(file)->i_private;
fb346fd9fc081c Waiman Long 2019-04-04   72  
fb346fd9fc081c Waiman Long 2019-04-04   73  if (id >= lockevent_num)
fb346fd9fc081c Waiman Long 2019-04-04   74  return -EBADF;
fb346fd9fc081c Waiman Long 2019-04-04   75  
fb346fd9fc081c Waiman Long 2019-04-04   76  for_each_possible_cpu(cpu)
fb346fd9fc081c Waiman Long 2019-04-04   77  sum += 
per_cpu(lockevents[id], cpu);
fb346fd9fc081c Waiman Long 2019-04-04   78  len = snprintf(buf, sizeof(buf) 
- 1, "%llu\n", sum);
fb346fd9fc081c Waiman Long 2019-04-04   79  
fb346fd9fc081c Waiman Long 2019-04-04   80  return 
simple_read_from_buffer(user_buf, count, ppos, buf, len);
fb346fd9fc081c Waiman Long 2019-04-04   81  }
fb346fd9fc081c Waiman Long 2019-04-04   82  
fb346fd9fc081c Waiman Long 2019-04-04   83  /*
fb346fd9fc081c Waiman Long 2019-04-04   84   * Function to handle write request
fb346fd9fc081c Waiman Long 2019-04-04   85   *
fb346fd9fc081c Waiman Long 2019-04-04   86   * When idx = reset_cnts, reset all 
the counts.
fb346fd9fc081c Waiman Long 2019-04-04   87   */
fb346fd9fc081c Waiman Long 2019-04-04   88  static ssize_t 
lockevent_write(struct file *file, const char __user *user_buf,
fb346fd9fc081c Waiman Long 2019-04-04   89 size_t 
count, loff_t *ppos)
fb346fd9fc081c Waiman Long 2019-04-04   90  {
fb346fd9fc081c Waiman Long 2019-04-04   91  int cpu;
fb346fd9fc081c Waiman Long 2019-04-04   92  
fb346fd9fc081c Waiman Long 2019-04-04   93  /*
fb346fd9fc081c Waiman Long 2019-04-04   94   * Get the counter ID stored in 
file->f_inode->i_private
fb346fd9fc081c Waiman Long 2019-04-04   95   */
fb346fd9fc081c Waiman Long 2019-04-04   96  if 
((long)file_inode(file)->i_private != LOCKEVENT_reset_cnts)
fb346fd9fc081c Waiman Long 2019-04-04   97  return count;
fb346fd9fc081c Waiman Long 2019-04-04   98  
fb346fd9fc081c Waiman Long 2019-04-04   99  for_each_possible_cpu(cpu) {
fb346fd9fc081c Waiman Long 2019-04-04  100  int i;
fb346fd9fc081c Waiman Long 2019-04-04  101  unsigned long *ptr = 
per_cpu_ptr(lockevents, cpu);
fb346fd9fc081c Waiman Long 2019-04-04 

[vhost:config-endian 38/39] drivers/platform/mellanox/mlxbf-tmfifo.c:1241:22: error: expected ')' before ';' token

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git 
config-endian
head:   df43c8f58f42ec36e91740f91ea7360f63213004
commit: e1e22056bc3641f340ed27012cfd1b8b05f83a0a [38/39] fixup! virtio_net: 
correct tags for config space fields
config: arm64-allyesconfig (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout e1e22056bc3641f340ed27012cfd1b8b05f83a0a
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=arm64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

   drivers/platform/mellanox/mlxbf-tmfifo.c: In function 'mlxbf_tmfifo_probe':
   drivers/platform/mellanox/mlxbf-tmfifo.c:1237:70: warning: value computed is 
not used [-Wunused-value]
1237 | #define MLXBF_TMFIFO_LITTLE_ENDIAN (virtio_legacy_is_little_endian() 
|| \
 | 
~^~~~
1238 |(MLXBF_TMFIFO_NET_FEATURES & (1ULL << VIRTIO_F_VERSION_1))
 |~~
 
   drivers/platform/mellanox/mlxbf-tmfifo.c:1240:37: note: in expansion of 
macro 'MLXBF_TMFIFO_LITTLE_ENDIAN'
1240 |  net_config.mtu = __cpu_to_virtio16(MLXBF_TMFIFO_LITTLE_ENDIAN,
 | ^~
>> drivers/platform/mellanox/mlxbf-tmfifo.c:1241:22: error: expected ')' before 
>> ';' token
1241 | ETH_DATA_LEN);
 |  ^
 |  )
>> drivers/platform/mellanox/mlxbf-tmfifo.c:1240:19: error: too few arguments 
>> to function '__cpu_to_virtio16'
1240 |  net_config.mtu = __cpu_to_virtio16(MLXBF_TMFIFO_LITTLE_ENDIAN,
 |   ^
   In file included from include/linux/virtio_config.h:8,
from drivers/platform/mellanox/mlxbf-tmfifo.c:18:
   include/linux/virtio_byteorder.h:24:26: note: declared here
  24 | static inline __virtio16 __cpu_to_virtio16(bool little_endian, u16 
val)
 |  ^
>> drivers/platform/mellanox/mlxbf-tmfifo.c:1290:1: error: expected declaration 
>> or statement at end of input
1290 | MODULE_AUTHOR("Mellanox Technologies");
 | ^
>> drivers/platform/mellanox/mlxbf-tmfifo.c:1232:3: error: label 'fail' used 
>> but not defined
1232 |   goto fail;
 |   ^~~~
   At top level:
   drivers/platform/mellanox/mlxbf-tmfifo.c:1183:12: warning: 
'mlxbf_tmfifo_probe' defined but not used [-Wunused-function]
1183 | static int mlxbf_tmfifo_probe(struct platform_device *pdev)
 |^~
   drivers/platform/mellanox/mlxbf-tmfifo.c:1170:13: warning: 
'mlxbf_tmfifo_cleanup' defined but not used [-Wunused-function]
1170 | static void mlxbf_tmfifo_cleanup(struct mlxbf_tmfifo *fifo)
 | ^~~~
   drivers/platform/mellanox/mlxbf-tmfifo.c:1128:13: warning: 
'mlxbf_tmfifo_get_cfg_mac' defined but not used [-Wunused-function]
1128 | static void mlxbf_tmfifo_get_cfg_mac(u8 *mac)
 | ^~~~

vim +1241 drivers/platform/mellanox/mlxbf-tmfifo.c

  1181  
  1182  /* Probe the TMFIFO. */
  1183  static int mlxbf_tmfifo_probe(struct platform_device *pdev)
  1184  {
  1185  struct virtio_net_config net_config;
  1186  struct device *dev = >dev;
  1187  struct mlxbf_tmfifo *fifo;
  1188  int i, rc;
  1189  
  1190  fifo = devm_kzalloc(dev, sizeof(*fifo), GFP_KERNEL);
  1191  if (!fifo)
  1192  return -ENOMEM;
  1193  
  1194  spin_lock_init(>spin_lock[0]);
  1195  spin_lock_init(>spin_lock[1]);
  1196  INIT_WORK(>work, mlxbf_tmfifo_work_handler);
  1197  mutex_init(>lock);
  1198  
  1199  /* Get the resource of the Rx FIFO. */
  1200  fifo->rx_base = devm_platform_ioremap_resource(pdev, 0);
  1201  if (IS_ERR(fifo->rx_base))
  1202  return PTR_ERR(fifo->rx_base);
  1203  
  1204  /* Get the resource of the Tx FIFO. */
  1205  fifo->tx_base = devm_platform_ioremap_resource(pdev, 1);
  1206  if (IS_ERR(fifo->tx_base))
  1207  return PTR_ERR(fifo->tx_base);
  1208  
  1209  platform_set_drvdata(pdev, fifo);
  1210  
  1211  timer_setup(>timer, mlxbf_tmfifo_timer, 0);
  1212  
  1213  for (i = 0; i < MLXBF_TM_MAX_IRQ; i++) {
  1214  fifo->irq_info[i].index = i;
  1215  

[vhost:config-endian 22/36] ./usr/include/linux/virtio_9p.h:39:2: error: unknown type name '__virtio16'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git 
config-endian
head:   6aef2378a564fea8e69c0419d94dc3ad9b4b7a99
commit: 8edd653e47e7e5ef253699fb1d0bb587941434d9 [22/36] virtio_9p: correct 
tags for config space fields
config: x86_64-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-14) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

   In file included from :32:
>> ./usr/include/linux/virtio_9p.h:39:2: error: unknown type name '__virtio16'
  39 |  __virtio16 tag_len;
 |  ^~

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org


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Description: application/gzip
___
Virtualization mailing list
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[vhost:config-endian 38/39] drivers/platform/mellanox/mlxbf-tmfifo.c:1237:2: error: invalid preprocessing directive #defined; did you mean

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git 
config-endian
head:   d8ede9b5e734748613d3e3108a4026244aa8e41f
commit: 392755e77e260e8a173b228e8ecc17917f97d5eb [38/39] fixup! virtio_net: 
correct tags for config space fields
config: arm64-allyesconfig (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout 392755e77e260e8a173b228e8ecc17917f97d5eb
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=arm64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

   drivers/platform/mellanox/mlxbf-tmfifo.c: In function 'mlxbf_tmfifo_probe':
>> drivers/platform/mellanox/mlxbf-tmfifo.c:1237:2: error: invalid 
>> preprocessing directive #defined; did you mean #define?
1237 | #defined MLXBF_TMFIFO_LITTLE_ENDIAN 
(virtio_legacy_is_little_endian() ||
 |  ^~~
 |  define
   drivers/platform/mellanox/mlxbf-tmfifo.c:1238:4: warning: statement with no 
effect [-Wunused-value]
1238 |(MLXBF_TMFIFO_NET_FEATURES & (1ULL << VIRTIO_F_VERSION_1)))
 |^
>> drivers/platform/mellanox/mlxbf-tmfifo.c:1238:62: error: expected ';' before 
>> ')' token
1238 |(MLXBF_TMFIFO_NET_FEATURES & (1ULL << VIRTIO_F_VERSION_1)))
 |  ^
 |  ;
>> drivers/platform/mellanox/mlxbf-tmfifo.c:1238:62: error: expected statement 
>> before ')' token
>> drivers/platform/mellanox/mlxbf-tmfifo.c:1240:37: error: 
>> 'MLXBF_TMFIFO_LITTLE_ENDIAN' undeclared (first use in this function); did 
>> you mean 'MLXBF_TMFIFO_NET_L2_OVERHEAD'?
1240 |  net_config.mtu = __cpu_to_virtio16(MLXBF_TMFIFO_LITTLE_ENDIAN,
 | ^~
 | MLXBF_TMFIFO_NET_L2_OVERHEAD
   drivers/platform/mellanox/mlxbf-tmfifo.c:1240:37: note: each undeclared 
identifier is reported only once for each function it appears in

vim +1237 drivers/platform/mellanox/mlxbf-tmfifo.c

  1181  
  1182  /* Probe the TMFIFO. */
  1183  static int mlxbf_tmfifo_probe(struct platform_device *pdev)
  1184  {
  1185  struct virtio_net_config net_config;
  1186  struct device *dev = >dev;
  1187  struct mlxbf_tmfifo *fifo;
  1188  int i, rc;
  1189  
  1190  fifo = devm_kzalloc(dev, sizeof(*fifo), GFP_KERNEL);
  1191  if (!fifo)
  1192  return -ENOMEM;
  1193  
  1194  spin_lock_init(>spin_lock[0]);
  1195  spin_lock_init(>spin_lock[1]);
  1196  INIT_WORK(>work, mlxbf_tmfifo_work_handler);
  1197  mutex_init(>lock);
  1198  
  1199  /* Get the resource of the Rx FIFO. */
  1200  fifo->rx_base = devm_platform_ioremap_resource(pdev, 0);
  1201  if (IS_ERR(fifo->rx_base))
  1202  return PTR_ERR(fifo->rx_base);
  1203  
  1204  /* Get the resource of the Tx FIFO. */
  1205  fifo->tx_base = devm_platform_ioremap_resource(pdev, 1);
  1206  if (IS_ERR(fifo->tx_base))
  1207  return PTR_ERR(fifo->tx_base);
  1208  
  1209  platform_set_drvdata(pdev, fifo);
  1210  
  1211  timer_setup(>timer, mlxbf_tmfifo_timer, 0);
  1212  
  1213  for (i = 0; i < MLXBF_TM_MAX_IRQ; i++) {
  1214  fifo->irq_info[i].index = i;
  1215  fifo->irq_info[i].fifo = fifo;
  1216  fifo->irq_info[i].irq = platform_get_irq(pdev, i);
  1217  rc = devm_request_irq(dev, fifo->irq_info[i].irq,
  1218mlxbf_tmfifo_irq_handler, 0,
  1219"tmfifo", >irq_info[i]);
  1220  if (rc) {
  1221  dev_err(dev, "devm_request_irq failed\n");
  1222  fifo->irq_info[i].irq = 0;
  1223  return rc;
  1224  }
  1225  }
  1226  
  1227  mlxbf_tmfifo_set_threshold(fifo);
  1228  
  1229  /* Create the console vdev. */
  1230  rc = mlxbf_tmfifo_create_vdev(dev, fifo, VIRTIO_ID_CONSOLE, 0, 
NULL, 0);
  1231  if (rc)
  1232  goto fail;
  1233  
  1234  /* Create the network vdev. */
  1235  memset(_config, 0, sizeof(net_config));
  1236  
> 1237  #defined MLXBF_TMFIFO_LITTLE_ENDIAN (virtio_legacy_is_little_endian() ||
> 1238

[vhost:config-endian 33/36] drivers/vdpa/vdpa_sim/vdpa_sim.c:335:21: sparse: sparse: incorrect type in assignment (different base types)

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git 
config-endian
head:   6aef2378a564fea8e69c0419d94dc3ad9b4b7a99
commit: 0cf222ef876b95893406eebe685e595d88de0950 [33/36] virtio_net: correct 
tags for config space fields
config: parisc-randconfig-s032-20200710 (attached as .config)
compiler: hppa-linux-gcc (GCC) 9.3.0
reproduce:
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.2-37-gc9676a3b-dirty
git checkout 0cf222ef876b95893406eebe685e595d88de0950
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=parisc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 


sparse warnings: (new ones prefixed by >>)

>> drivers/vdpa/vdpa_sim/vdpa_sim.c:335:21: sparse: sparse: incorrect type in 
>> assignment (different base types) @@ expected restricted __virtio16 
>> [usertype] mtu @@ got int @@
>> drivers/vdpa/vdpa_sim/vdpa_sim.c:335:21: sparse: expected restricted 
>> __virtio16 [usertype] mtu
>> drivers/vdpa/vdpa_sim/vdpa_sim.c:335:21: sparse: got int
>> drivers/vdpa/vdpa_sim/vdpa_sim.c:336:24: sparse: sparse: incorrect type in 
>> assignment (different base types) @@ expected restricted __virtio16 
>> [usertype] status @@ got int @@
>> drivers/vdpa/vdpa_sim/vdpa_sim.c:336:24: sparse: expected restricted 
>> __virtio16 [usertype] status
   drivers/vdpa/vdpa_sim/vdpa_sim.c:336:24: sparse: got int

vim +335 drivers/vdpa/vdpa_sim/vdpa_sim.c

2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
306  
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
307  static struct vdpasim *vdpasim_create(void)
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
308  {
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
309   struct virtio_net_config *config;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
310   struct vdpasim *vdpasim;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
311   struct device *dev;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
312   int ret = -ENOMEM;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
313  
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
314   vdpasim = vdpa_alloc_device(struct vdpasim, vdpa, NULL,
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
315   _net_config_ops);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
316   if (!vdpasim)
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
317   goto err_alloc;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
318  
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
319   INIT_WORK(>work, vdpasim_work);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
320   spin_lock_init(>lock);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
321  
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
322   dev = >vdpa.dev;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
323   dev->coherent_dma_mask = DMA_BIT_MASK(64);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
324   set_dma_ops(dev, _dma_ops);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
325  
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
326   vdpasim->iommu = vhost_iotlb_alloc(2048, 0);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
327   if (!vdpasim->iommu)
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
328   goto err_iommu;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
329  
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
330   vdpasim->buffer = kmalloc(PAGE_SIZE, GFP_KERNEL);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
331   if (!vdpasim->buffer)
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
332   goto err_iommu;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
333  
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
334   conf

[vhost:vhost 18/52] drivers/virtio/virtio_mem.c:1391:5: warning: Variable 'rc' is reassigned a value before the old one has been used.

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost
head:   f3861bc96a7e130943e1975e571ae62c0319b064
commit: 5f1f79bbc9e26fa9412fa9522f957bb8f030c442 [18/52] virtio-mem: 
Paravirtualized memory hotplug
compiler: gcc-9 (Debian 9.3.0-13) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 


cppcheck warnings: (new ones prefixed by >>)

>> drivers/virtio/virtio_mem.c:1391:5: warning: Variable 'rc' is reassigned a 
>> value before the old one has been used. [redundantAssignment]
rc = virtio_mem_init_vq(vm);
   ^
   drivers/virtio/virtio_mem.c:1375:0: note: Variable 'rc' is reassigned a 
value before the old one has been used.
int rc = -EINVAL;
   ^
   drivers/virtio/virtio_mem.c:1391:5: note: Variable 'rc' is reassigned a 
value before the old one has been used.
rc = virtio_mem_init_vq(vm);
   ^
>> drivers/virtio/virtio_mem.c:801:22: warning: int result is assigned to long 
>> variable. If the variable is long to avoid loss of information, then you 
>> have loss of information. [truncLongCastAssignment]
const uint64_t size = count * vm->subblock_size;
^
   drivers/virtio/virtio_mem.c:822:22: warning: int result is assigned to long 
variable. If the variable is long to avoid loss of information, then you have 
loss of information. [truncLongCastAssignment]
const uint64_t size = count * vm->subblock_size;
^

vim +/rc +1391 drivers/virtio/virtio_mem.c

  1371  
  1372  static int virtio_mem_probe(struct virtio_device *vdev)
  1373  {
  1374  struct virtio_mem *vm;
  1375  int rc = -EINVAL;
  1376  
  1377  vdev->priv = vm = kzalloc(sizeof(*vm), GFP_KERNEL);
  1378  if (!vm)
  1379  return -ENOMEM;
  1380  
  1381  init_waitqueue_head(>host_resp);
  1382  vm->vdev = vdev;
  1383  INIT_WORK(>wq, virtio_mem_run_wq);
  1384  mutex_init(>hotplug_mutex);
  1385  INIT_LIST_HEAD(>next);
  1386  spin_lock_init(>removal_lock);
  1387  hrtimer_init(>retry_timer, CLOCK_MONOTONIC, 
HRTIMER_MODE_REL);
  1388  vm->retry_timer.function = virtio_mem_timer_expired;
  1389  
  1390  /* register the virtqueue */
> 1391  rc = virtio_mem_init_vq(vm);
  1392  if (rc)
  1393  goto out_free_vm;
  1394  
  1395  /* initialize the device by querying the config */
  1396  rc = virtio_mem_init(vm);
  1397  if (rc)
  1398  goto out_del_vq;
  1399  
  1400  /* register callbacks */
  1401  vm->memory_notifier.notifier_call = 
virtio_mem_memory_notifier_cb;
  1402  rc = register_memory_notifier(>memory_notifier);
  1403  if (rc)
  1404  goto out_del_vq;
  1405  rc = register_virtio_mem_device(vm);
  1406  if (rc)
  1407  goto out_unreg_mem;
  1408  
  1409  virtio_device_ready(vdev);
  1410  
  1411  /* trigger a config update to start processing the 
requested_size */
  1412  atomic_set(>config_changed, 1);
  1413  queue_work(system_freezable_wq, >wq);
  1414  
  1415  return 0;
  1416  out_unreg_mem:
  1417  unregister_memory_notifier(>memory_notifier);
  1418  out_del_vq:
  1419  vdev->config->del_vqs(vdev);
  1420  out_free_vm:
  1421  kfree(vm);
  1422  vdev->priv = NULL;
  1423  
  1424  return rc;
  1425  }
  1426  

---
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https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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Re: [PATCH] virtio_mem: prevent overflow with subblock size

[kernel test robot]

Hi "Michael,

I love your patch! Perhaps something to improve:

[auto build test WARNING on vhost/vhost]
[also build test WARNING on next-20200608]
[cannot apply to linus/master linux/master v5.7]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:
https://github.com/0day-ci/linux/commits/Michael-S-Tsirkin/virtio_mem-prevent-overflow-with-subblock-size/20200608-141805
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost
config: x86_64-allyesconfig (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 
e429cffd4f228f70c1d9df0e5d77c08590dd9766)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>, old ones prefixed by <<):

>> drivers/virtio/virtio_mem.c:1721:4: warning: format specifies type 'unsigned 
>> int' but the argument has type 'uint64_t' (aka 'unsigned long long') 
>> [-Wformat]
vm->subblock_size);
^
include/linux/dev_printk.h:110:33: note: expanded from macro 'dev_info'
_dev_info(dev, dev_fmt(fmt), ##__VA_ARGS__)
~~~ ^~~
1 warning generated.

vim +1721 drivers/virtio/virtio_mem.c

5f1f79bbc9e26f David Hildenbrand  2020-05-07  1642  
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1643  static int 
virtio_mem_init(struct virtio_mem *vm)
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1644  {
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1645  const uint64_t 
phys_limit = 1UL << MAX_PHYSMEM_BITS;
f2af6d3978d74a David Hildenbrand  2020-05-07  1646  uint16_t node_id;
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1647  
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1648  if 
(!vm->vdev->config->get) {
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1649  
dev_err(>vdev->dev, "config access disabled\n");
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1650  return -EINVAL;
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1651  }
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1652  
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1653  /*
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1654   * We don't want to 
(un)plug or reuse any memory when in kdump. The
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1655   * memory is still 
accessible (but not mapped).
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1656   */
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1657  if (is_kdump_kernel()) {
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1658  
dev_warn(>vdev->dev, "disabled in kdump kernel\n");
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1659  return -EBUSY;
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1660  }
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1661  
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1662  /* Fetch all properties 
that can't change. */
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1663  virtio_cread(vm->vdev, 
struct virtio_mem_config, plugged_size,
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1664   
>plugged_size);
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1665  virtio_cread(vm->vdev, 
struct virtio_mem_config, block_size,
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1666   
>device_block_size);
f2af6d3978d74a David Hildenbrand  2020-05-07  1667  virtio_cread(vm->vdev, 
struct virtio_mem_config, node_id,
f2af6d3978d74a David Hildenbrand  2020-05-07  1668   _id);
f2af6d3978d74a David Hildenbrand  2020-05-07  1669  vm->nid = 
virtio_mem_translate_node_id(vm, node_id);
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1670  virtio_cread(vm->vdev, 
struct virtio_mem_config, addr, >addr);
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1671  virtio_cread(vm->vdev, 
struct virtio_mem_config, region_size,
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1672   
>region_size);
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1673  
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1674  /*
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1675   * We always hotplug 
memory in memory block granularity. This way,
5f1f79bbc9e26f David Hildenbrand  2020-05-07  1676   * we have to wait for 
exactly one memory block to online.
5f1f79bb

Re: [PATCH V2 4/6] vhost_vdpa: implement IRQ offloading in vhost_vdpa

[kernel test robot]

Hi Zhu,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on vhost/linux-next]
[also build test WARNING on kvm/linux-next linus/master v5.8-rc5 next-20200716]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Zhu-Lingshan/IRQ-offloading-for-vDPA/20200716-192910
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
config: openrisc-randconfig-r016-20200717 (attached as .config)
compiler: or1k-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=openrisc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   drivers/vhost/vdpa.c: In function 'vhost_vdpa_setup_vq_irq':
>> drivers/vhost/vdpa.c:122:6: warning: variable 'ret' set but not used 
>> [-Wunused-but-set-variable]
 122 |  int ret;
 |  ^~~

vim +/ret +122 drivers/vhost/vdpa.c

   117  
   118  static void vhost_vdpa_setup_vq_irq(struct vdpa_device *dev, int qid, 
int irq)
   119  {
   120  struct vhost_vdpa *v = vdpa_get_drvdata(dev);
   121  struct vhost_virtqueue *vq = >vqs[qid];
 > 122  int ret;
   123  
   124  spin_lock(>call_ctx.ctx_lock);
   125  if (!vq->call_ctx.ctx) {
   126  spin_unlock(>call_ctx.ctx_lock);
   127  return;
   128  }
   129  
   130  vq->call_ctx.producer.token = vq->call_ctx.ctx;
   131  vq->call_ctx.producer.irq = irq;
   132  ret = irq_bypass_register_producer(>call_ctx.producer);
   133  spin_unlock(>call_ctx.ctx_lock);
   134  }
   135  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org


.config.gz
Description: application/gzip
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Re: [PATCH vhost next 09/10] vdpa/mlx5: Add shared memory registration code

[kernel test robot]

Hi Eli,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on next-20200715]

url:
https://github.com/0day-ci/linux/commits/Eli-Cohen/VDPA-support-for-Mellanox-ConnectX-devices/20200716-155039
base:ca0e494af5edb59002665bf12871e94b4163a257
config: i386-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-14) 9.3.0
reproduce (this is a W=1 build):
# save the attached .config to linux build tree
make W=1 ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   include/linux/mlx5/device.h:56:43: note: in expansion of macro 
'__mlx5_bit_sz'
  56 | #define __mlx5_dw_bit_off(typ, fld) (32 - __mlx5_bit_sz(typ, fld) - 
(__mlx5_bit_off(typ, fld) & 0x1f))
 |   ^
   include/linux/mlx5/device.h:58:60: note: in expansion of macro 
'__mlx5_dw_bit_off'
  58 | #define __mlx5_dw_mask(typ, fld) (__mlx5_mask(typ, fld) << 
__mlx5_dw_bit_off(typ, fld))
 |
^
   include/linux/mlx5/device.h:78:10: note: in expansion of macro 
'__mlx5_dw_mask'
  78 |(~__mlx5_dw_mask(typ, fld))) | (((_v) & __mlx5_mask(typ, 
fld)) \
 |  ^~
   drivers/vdpa/mlx5/core/mr.c:194:2: note: in expansion of macro 'MLX5_SET'
 194 |  MLX5_SET(create_mkey_in, in, uid, mvdev->res.uid);
 |  ^~~~
   include/linux/compiler_types.h:135:35: error: 'struct 
mlx5_ifc_create_mkey_in_bits' has no member named 'uid'
 135 | #define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
 |   ^~
   include/uapi/linux/swab.h:115:54: note: in definition of macro '__swab32'
 115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
 |  ^
   include/linux/byteorder/generic.h:94:21: note: in expansion of macro 
'__cpu_to_be32'
  94 | #define cpu_to_be32 __cpu_to_be32
 | ^
   include/linux/stddef.h:17:32: note: in expansion of macro 
'__compiler_offsetof'
  17 | #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER)
 |^~~
   include/linux/mlx5/device.h:51:35: note: in expansion of macro 'offsetof'
  51 | #define __mlx5_bit_off(typ, fld) (offsetof(struct 
mlx5_ifc_##typ##_bits, fld))
 |   ^~~~
   include/linux/mlx5/device.h:56:70: note: in expansion of macro 
'__mlx5_bit_off'
  56 | #define __mlx5_dw_bit_off(typ, fld) (32 - __mlx5_bit_sz(typ, fld) - 
(__mlx5_bit_off(typ, fld) & 0x1f))
 |  
^~
   include/linux/mlx5/device.h:58:60: note: in expansion of macro 
'__mlx5_dw_bit_off'
  58 | #define __mlx5_dw_mask(typ, fld) (__mlx5_mask(typ, fld) << 
__mlx5_dw_bit_off(typ, fld))
 |
^
   include/linux/mlx5/device.h:78:10: note: in expansion of macro 
'__mlx5_dw_mask'
  78 |(~__mlx5_dw_mask(typ, fld))) | (((_v) & __mlx5_mask(typ, 
fld)) \
 |  ^~
   drivers/vdpa/mlx5/core/mr.c:194:2: note: in expansion of macro 'MLX5_SET'
 194 |  MLX5_SET(create_mkey_in, in, uid, mvdev->res.uid);
 |  ^~~~
   include/linux/mlx5/device.h:50:57: error: 'struct 
mlx5_ifc_create_mkey_in_bits' has no member named 'uid'
  50 | #define __mlx5_bit_sz(typ, fld) sizeof(__mlx5_nullp(typ)->fld)
 | ^~
   include/uapi/linux/swab.h:115:54: note: in definition of macro '__swab32'
 115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
 |  ^
   include/linux/byteorder/generic.h:94:21: note: in expansion of macro 
'__cpu_to_be32'
  94 | #define cpu_to_be32 __cpu_to_be32
 | ^
   include/linux/mlx5/device.h:57:47: note: in expansion of macro 
'__mlx5_bit_sz'
  57 | #define __mlx5_mask(typ, fld) ((u32)((1ull << __mlx5_bit_sz(typ, 
fld)) - 1))
 |   ^
   include/linux/mlx5/device.h:78:48: note: in expansion of macro '__mlx5_mask'
  78 |(~__mlx5_dw_mask(typ, fld))) | (((_v) & __mlx5_mask(typ, 
fld)) \
 |^~~
   drivers/vdpa/mlx5/core/mr.c:194:2: note: in expansion of macro 'MLX5_SET'
 194 |  MLX5_SET(create_mkey_in, in, uid, mvdev->res.uid);
 |  ^~~~
   include/linux/mlx5/device.h:50:57: error: 'struct 
mlx5_ifc_create_mkey_in_bits' has no member named 'uid'
  

Re: [PATCH vhost next 08/10] vdpa/mlx5: Add support library for mlx5 VDPA implementation

[kernel test robot]

Hi Eli,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on next-20200715]

url:
https://github.com/0day-ci/linux/commits/Eli-Cohen/VDPA-support-for-Mellanox-ConnectX-devices/20200716-155039
base:ca0e494af5edb59002665bf12871e94b4163a257
config: mips-allyesconfig (attached as .config)
compiler: mips-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=mips 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

   In file included from include/linux/mlx5/driver.h:52,
from drivers/vdpa/mlx5/core/resources.c:4:
   drivers/vdpa/mlx5/core/resources.c: In function 'create_uctx':
>> include/linux/mlx5/device.h:65:36: error: invalid application of 'sizeof' to 
>> incomplete type 'struct mlx5_ifc_create_uctx_out_bits'
  65 | #define MLX5_ST_SZ_DW(typ) (sizeof(struct mlx5_ifc_##typ##_bits) / 
32)
 |^~
   drivers/vdpa/mlx5/core/resources.c:52:10: note: in expansion of macro 
'MLX5_ST_SZ_DW'
  52 |  u32 out[MLX5_ST_SZ_DW(create_uctx_out)] = {};
 |  ^
>> drivers/vdpa/mlx5/core/resources.c:52:44: error: empty scalar initializer
  52 |  u32 out[MLX5_ST_SZ_DW(create_uctx_out)] = {};
 |^
   drivers/vdpa/mlx5/core/resources.c:52:44: note: (near initialization for 
'out')
   In file included from include/linux/byteorder/big_endian.h:5,
from arch/mips/include/uapi/asm/byteorder.h:13,
from arch/mips/include/asm/bitops.h:20,
from include/linux/bitops.h:29,
from include/linux/kernel.h:12,
from include/linux/mlx5/driver.h:36,
from drivers/vdpa/mlx5/core/resources.c:4:
>> include/linux/compiler_types.h:135:35: error: invalid use of undefined type 
>> 'struct mlx5_ifc_create_uctx_out_bits'
 135 | #define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
 |   ^~
   include/uapi/linux/byteorder/big_endian.h:40:51: note: in definition of 
macro '__be32_to_cpu'
  40 | #define __be32_to_cpu(x) ((__force __u32)(__be32)(x))
 |   ^
   include/linux/stddef.h:17:32: note: in expansion of macro 
'__compiler_offsetof'
  17 | #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER)
 |^~~
   include/linux/mlx5/device.h:51:35: note: in expansion of macro 'offsetof'
  51 | #define __mlx5_bit_off(typ, fld) (offsetof(struct 
mlx5_ifc_##typ##_bits, fld))
 |   ^~~~
   include/linux/mlx5/device.h:53:34: note: in expansion of macro 
'__mlx5_bit_off'
  53 | #define __mlx5_dw_off(typ, fld) (__mlx5_bit_off(typ, fld) / 32)
 |  ^~
   include/linux/mlx5/device.h:96:1: note: in expansion of macro '__mlx5_dw_off'
  96 | __mlx5_dw_off(typ, fld))) >> __mlx5_dw_bit_off(typ, fld)) & \
 | ^
   drivers/vdpa/mlx5/core/resources.c:72:10: note: in expansion of macro 
'MLX5_GET'
  72 |   *uid = MLX5_GET(create_uctx_out, out, uid);
 |  ^~~~
   In file included from include/linux/mlx5/driver.h:52,
from drivers/vdpa/mlx5/core/resources.c:4:
>> include/linux/mlx5/device.h:50:57: error: dereferencing pointer to 
>> incomplete type 'struct mlx5_ifc_create_uctx_out_bits'
  50 | #define __mlx5_bit_sz(typ, fld) sizeof(__mlx5_nullp(typ)->fld)
 | ^~
   include/linux/mlx5/device.h:56:43: note: in expansion of macro 
'__mlx5_bit_sz'
  56 | #define __mlx5_dw_bit_off(typ, fld) (32 - __mlx5_bit_sz(typ, fld) - 
(__mlx5_bit_off(typ, fld) & 0x1f))
 |   ^
   include/linux/mlx5/device.h:96:30: note: in expansion of macro 
'__mlx5_dw_bit_off'
  96 | __mlx5_dw_off(typ, fld))) >> __mlx5_dw_bit_off(typ, fld)) & \
 |  ^
   drivers/vdpa/mlx5/core/resources.c:72:10: note: in expansion of macro 
'MLX5_GET'
  72 |   *uid = MLX5_GET(create_uctx_out, out, uid);
 |  ^~~~
   In file included from :
>> include/linux/compiler_types.h:135:35: error: invalid use of undefined type 
>> 'struct mlx5_ifc_create_uctx_out_bits'
 135 | #define __compiler_offsetof(a, b) __builtin_offsetof(a, b)

Re: [PATCH] virtio_ring: use alloc_pages_node for NUMA-aware allocation

[kernel test robot]

Hi Shile,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.8-rc5 next-20200716]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Shile-Zhang/virtio_ring-use-alloc_pages_node-for-NUMA-aware-allocation/20200717-173734
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
8882572675c1bb1cc544f4e229a11661f1fc52e4
config: s390-randconfig-r015-20200717 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
ed6b578040a85977026c93bf4188f996148f3218)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=s390 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All error/warnings (new ones prefixed by >>):

   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
 ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
   ___constant_swab32(x) : \
  ^
   include/uapi/linux/swab.h:19:12: note: expanded from macro 
'___constant_swab32'
   (((__u32)(x) & (__u32)0x00ffUL) << 24) |\
 ^
   In file included from drivers/virtio/virtio_ring.c:6:
   In file included from include/linux/virtio.h:7:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:72:
   include/asm-generic/io.h:490:45: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   val = __le32_to_cpu(__raw_readl(PCI_IOBASE + addr));
   ~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro 
'__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
 ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
   ___constant_swab32(x) : \
  ^
   include/uapi/linux/swab.h:20:12: note: expanded from macro 
'___constant_swab32'
   (((__u32)(x) & (__u32)0xff00UL) <<  8) |\
 ^
   In file included from drivers/virtio/virtio_ring.c:6:
   In file included from include/linux/virtio.h:7:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:72:
   include/asm-generic/io.h:490:45: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   val = __le32_to_cpu(__raw_readl(PCI_IOBASE + addr));
   ~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro 
'__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
 ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
   ___constant_swab32(x) : \
  ^
   include/uapi/linux/swab.h:21:12: note: expanded from macro 
'___constant_swab32'
   (((__u32)(x) & (__u32)0x00ffUL) >>  8) |\
 ^
   In file included from drivers/virtio/virtio_ring.c:6:
   In file included from include/linux/virtio.h:7:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:72:
   include/asm-generic/io.h:490:45: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   val = __le32_to_cpu(__raw_readl(PCI_IOBASE + addr));
   ~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro 
'__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
 ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
   ___constant_swab32(x) : \
  ^
   include/uapi/linux/swab.h:22:12: note: expanded from macro 
'___constant_swab32'
   (((__u32)(x) & (__u32)0xff00UL) >> 24)))
 ^
   In file included from drivers/virtio/vir

Re: [PATCH] virtio_ring: use alloc_pages_node for NUMA-aware allocation

[kernel test robot]

Hi Shile,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.8-rc5 next-20200716]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Shile-Zhang/virtio_ring-use-alloc_pages_node-for-NUMA-aware-allocation/20200717-173734
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
8882572675c1bb1cc544f4e229a11661f1fc52e4
config: alpha-allyesconfig (attached as .config)
compiler: alpha-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=alpha 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All error/warnings (new ones prefixed by >>):

   drivers/virtio/virtio_ring.c: In function 'vring_alloc_queue':
>> drivers/virtio/virtio_ring.c:280:52: error: passing argument 1 of 
>> 'dev_to_node' from incompatible pointer type 
>> [-Werror=incompatible-pointer-types]
 280 |   struct page *page = 
alloc_pages_node(dev_to_node(>dev.parent),
 |^
 ||
 |struct device **
   In file included from include/linux/virtio.h:9,
from drivers/virtio/virtio_ring.c:6:
   include/linux/device.h:668:46: note: expected 'struct device *' but argument 
is of type 'struct device **'
 668 | static inline int dev_to_node(struct device *dev)
 |   ~~~^~~
>> drivers/virtio/virtio_ring.c:284:4: warning: ISO C90 forbids mixed 
>> declarations and code [-Wdeclaration-after-statement]
 284 |phys_addr_t phys_addr = virt_to_phys(queue);
 |^~~
   cc1: some warnings being treated as errors

vim +/dev_to_node +280 drivers/virtio/virtio_ring.c

   271  
   272  static void *vring_alloc_queue(struct virtio_device *vdev, size_t size,
   273dma_addr_t *dma_handle, gfp_t flag)
   274  {
   275  if (vring_use_dma_api(vdev)) {
   276  return dma_alloc_coherent(vdev->dev.parent, size,
   277dma_handle, flag);
   278  } else {
   279  void *queue = NULL;
 > 280  struct page *page = 
 > alloc_pages_node(dev_to_node(>dev.parent),
   281   flag, 
get_order(size));
   282  if (page) {
   283  queue = page_address(page);
 > 284  phys_addr_t phys_addr = virt_to_phys(queue);
   285  *dma_handle = (dma_addr_t)phys_addr;
   286  
   287  /*
   288   * Sanity check: make sure we dind't truncate
   289   * the address.  The only arches I can find that
   290   * have 64-bit phys_addr_t but 32-bit dma_addr_t
   291   * are certain non-highmem MIPS and x86
   292   * configurations, but these configurations
   293   * should never allocate physical pages above 32
   294   * bits, so this is fine.  Just in case, throw a
   295   * warning and abort if we end up with an
   296   * unrepresentable address.
   297   */
   298  if (WARN_ON_ONCE(*dma_handle != phys_addr)) {
   299  free_pages_exact(queue, 
PAGE_ALIGN(size));
   300  return NULL;
   301  }
   302  }
   303  return queue;
   304  }
   305  }
   306  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org


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Re: [PATCH vhost next 09/10] vdpa/mlx5: Add shared memory registration code

[kernel test robot]

Hi Eli,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on next-20200715]

url:
https://github.com/0day-ci/linux/commits/Eli-Cohen/VDPA-support-for-Mellanox-ConnectX-devices/20200716-155039
base:ca0e494af5edb59002665bf12871e94b4163a257
config: ia64-allmodconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=ia64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

 120 |  __fswab32(x))
 |^
   include/linux/byteorder/generic.h:94:21: note: in expansion of macro 
'__cpu_to_be32'
  94 | #define cpu_to_be32 __cpu_to_be32
 | ^
   include/linux/stddef.h:17:32: note: in expansion of macro 
'__compiler_offsetof'
  17 | #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER)
 |^~~
   include/linux/mlx5/device.h:51:35: note: in expansion of macro 'offsetof'
  51 | #define __mlx5_bit_off(typ, fld) (offsetof(struct 
mlx5_ifc_##typ##_bits, fld))
 |   ^~~~
   include/linux/mlx5/device.h:56:70: note: in expansion of macro 
'__mlx5_bit_off'
  56 | #define __mlx5_dw_bit_off(typ, fld) (32 - __mlx5_bit_sz(typ, fld) - 
(__mlx5_bit_off(typ, fld) & 0x1f))
 |  
^~
   include/linux/mlx5/device.h:58:60: note: in expansion of macro 
'__mlx5_dw_bit_off'
  58 | #define __mlx5_dw_mask(typ, fld) (__mlx5_mask(typ, fld) << 
__mlx5_dw_bit_off(typ, fld))
 |
^
   include/linux/mlx5/device.h:78:10: note: in expansion of macro 
'__mlx5_dw_mask'
  78 |(~__mlx5_dw_mask(typ, fld))) | (((_v) & __mlx5_mask(typ, 
fld)) \
 |  ^~
   drivers/vdpa/mlx5/core/mr.c:194:2: note: in expansion of macro 'MLX5_SET'
 194 |  MLX5_SET(create_mkey_in, in, uid, mvdev->res.uid);
 |  ^~~~
   include/linux/mlx5/device.h:50:57: error: 'struct 
mlx5_ifc_create_mkey_in_bits' has no member named 'uid'
  50 | #define __mlx5_bit_sz(typ, fld) sizeof(__mlx5_nullp(typ)->fld)
 | ^~
   include/uapi/linux/swab.h:120:12: note: in definition of macro '__swab32'
 120 |  __fswab32(x))
 |^
   include/linux/byteorder/generic.h:94:21: note: in expansion of macro 
'__cpu_to_be32'
  94 | #define cpu_to_be32 __cpu_to_be32
 | ^
   include/linux/mlx5/device.h:57:47: note: in expansion of macro 
'__mlx5_bit_sz'
  57 | #define __mlx5_mask(typ, fld) ((u32)((1ull << __mlx5_bit_sz(typ, 
fld)) - 1))
 |   ^
   include/linux/mlx5/device.h:78:48: note: in expansion of macro '__mlx5_mask'
  78 |(~__mlx5_dw_mask(typ, fld))) | (((_v) & __mlx5_mask(typ, 
fld)) \
 |^~~
   drivers/vdpa/mlx5/core/mr.c:194:2: note: in expansion of macro 'MLX5_SET'
 194 |  MLX5_SET(create_mkey_in, in, uid, mvdev->res.uid);
 |  ^~~~
   include/linux/mlx5/device.h:50:57: error: 'struct 
mlx5_ifc_create_mkey_in_bits' has no member named 'uid'
  50 | #define __mlx5_bit_sz(typ, fld) sizeof(__mlx5_nullp(typ)->fld)
 | ^~
   include/uapi/linux/swab.h:120:12: note: in definition of macro '__swab32'
 120 |  __fswab32(x))
 |^
   include/linux/byteorder/generic.h:94:21: note: in expansion of macro 
'__cpu_to_be32'
  94 | #define cpu_to_be32 __cpu_to_be32
 | ^
   include/linux/mlx5/device.h:56:43: note: in expansion of macro 
'__mlx5_bit_sz'
  56 | #define __mlx5_dw_bit_off(typ, fld) (32 - __mlx5_bit_sz(typ, fld) - 
(__mlx5_bit_off(typ, fld) & 0x1f))
 |   ^
   include/linux/mlx5/device.h:79:11: note: in expansion of macro 
'__mlx5_dw_bit_off'
  79 |<< __mlx5_dw_bit_off(typ, fld))); \
 |   ^
   drivers/vdpa/mlx5/core/mr.c:194:2: note: in expansion of macro 'MLX5_SET'
 194 |  MLX5_SET(create_mkey_in, in, uid, mvdev->res.uid);
 |  ^~~~
   include/linux/compiler_types.h:135:35: error: 'struct 
mlx5_ifc_create_mkey_in_bits' has no member named 'uid'
 135 | #d

Re: [PATCH vhost next 10/10] vdpa/mlx5: Add VDPA driver for supported mlx5 devices

[kernel test robot]

Hi Eli,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on next-20200715]

url:
https://github.com/0day-ci/linux/commits/Eli-Cohen/VDPA-support-for-Mellanox-ConnectX-devices/20200716-155039
base:ca0e494af5edb59002665bf12871e94b4163a257
config: i386-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-14) 9.3.0
reproduce (this is a W=1 build):
# save the attached .config to linux build tree
make W=1 ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All error/warnings (new ones prefixed by >>):

>> drivers/vdpa/mlx5/net/main.c:7:10: fatal error: mlx5_vdpa_ifc.h: No such 
>> file or directory
   7 | #include "mlx5_vdpa_ifc.h"
 |  ^
   compilation terminated.
--
 | ^
   include/linux/mlx5/device.h:56:43: note: in expansion of macro 
'__mlx5_bit_sz'
  56 | #define __mlx5_dw_bit_off(typ, fld) (32 - __mlx5_bit_sz(typ, fld) - 
(__mlx5_bit_off(typ, fld) & 0x1f))
 |   ^
   include/linux/mlx5/device.h:58:60: note: in expansion of macro 
'__mlx5_dw_bit_off'
  58 | #define __mlx5_dw_mask(typ, fld) (__mlx5_mask(typ, fld) << 
__mlx5_dw_bit_off(typ, fld))
 |
^
   include/linux/mlx5/device.h:78:10: note: in expansion of macro 
'__mlx5_dw_mask'
  78 |(~__mlx5_dw_mask(typ, fld))) | (((_v) & __mlx5_mask(typ, 
fld)) \
 |  ^~
   drivers/vdpa/mlx5/net/mlx5_vnet.c:1192:2: note: in expansion of macro 
'MLX5_SET'
1192 |  MLX5_SET(rqtc, rqtc, list_q_type, 
MLX5_RQTC_LIST_Q_TYPE_VIRTIO_NET_Q);
 |  ^~~~
   include/linux/compiler_types.h:135:35: error: 'struct mlx5_ifc_rqtc_bits' 
has no member named 'list_q_type'
 135 | #define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
 |   ^~
   include/uapi/linux/swab.h:115:54: note: in definition of macro '__swab32'
 115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
 |  ^
   include/linux/byteorder/generic.h:94:21: note: in expansion of macro 
'__cpu_to_be32'
  94 | #define cpu_to_be32 __cpu_to_be32
 | ^
   include/linux/stddef.h:17:32: note: in expansion of macro 
'__compiler_offsetof'
  17 | #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER)
 |^~~
   include/linux/mlx5/device.h:51:35: note: in expansion of macro 'offsetof'
  51 | #define __mlx5_bit_off(typ, fld) (offsetof(struct 
mlx5_ifc_##typ##_bits, fld))
 |   ^~~~
   include/linux/mlx5/device.h:56:70: note: in expansion of macro 
'__mlx5_bit_off'
  56 | #define __mlx5_dw_bit_off(typ, fld) (32 - __mlx5_bit_sz(typ, fld) - 
(__mlx5_bit_off(typ, fld) & 0x1f))
 |  
^~
   include/linux/mlx5/device.h:58:60: note: in expansion of macro 
'__mlx5_dw_bit_off'
  58 | #define __mlx5_dw_mask(typ, fld) (__mlx5_mask(typ, fld) << 
__mlx5_dw_bit_off(typ, fld))
 |
^
   include/linux/mlx5/device.h:78:10: note: in expansion of macro 
'__mlx5_dw_mask'
  78 |(~__mlx5_dw_mask(typ, fld))) | (((_v) & __mlx5_mask(typ, 
fld)) \
 |  ^~
   drivers/vdpa/mlx5/net/mlx5_vnet.c:1192:2: note: in expansion of macro 
'MLX5_SET'
1192 |  MLX5_SET(rqtc, rqtc, list_q_type, 
MLX5_RQTC_LIST_Q_TYPE_VIRTIO_NET_Q);
 |  ^~~~
   include/linux/mlx5/device.h:50:57: error: 'struct mlx5_ifc_rqtc_bits' has no 
member named 'list_q_type'
  50 | #define __mlx5_bit_sz(typ, fld) sizeof(__mlx5_nullp(typ)->fld)
 | ^~
   include/uapi/linux/swab.h:115:54: note: in definition of macro '__swab32'
 115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
 |  ^
   include/linux/byteorder/generic.h:94:21: note: in expansion of macro 
'__cpu_to_be32'
  94 | #define cpu_to_be32 __cpu_to_be32
 | ^
   include/linux/mlx5/device.h:57:47: note: in expansion of macro 
'__mlx5_bit_sz'
  57 | #define __mlx5_mask(typ, fld) ((u32)((1ull << __mlx5_bit_sz(typ, 
fld)) - 1))
 |   ^
   include/linux/mlx5/device.h:78:48: note: in expansion of macro '__mlx5_mask'
  78 |(~__mlx5_dw_mask(typ, fld))) | (((_v) & __mlx5_mask(typ, 
fld)) \
 |   

[vhost:vhost 40/45] drivers/virtio/virtio_vdpa.c:301:9: error: void value not ignored as it ought to be

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost
head:   84d40e4b4bc64456abf5ef5663871053b40e84ac
commit: 03750f7fa49f9384911059fe16f5367b7e86f99d [40/45] virtio_vdpa: legacy 
features handling
config: nds32-randconfig-r003-20200728 (attached as .config)
compiler: nds32le-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout 03750f7fa49f9384911059fe16f5367b7e86f99d
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=nds32 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All error/warnings (new ones prefixed by >>):

   In file included from drivers/virtio/virtio_vdpa.c:17:
   include/linux/vdpa.h:43:21: error: expected ':', ',', ';', '}' or 
'__attribute__' before '.' token
  43 |  bool features_valid.
 | ^
   include/linux/vdpa.h: In function 'vdpa_reset':
   include/linux/vdpa.h:276:6: error: 'struct vdpa_device' has no member named 
'features_valid'
 276 |  vdev->features_valid = false;
 |  ^~
   include/linux/vdpa.h: In function 'vdpa_set_features':
   include/linux/vdpa.h:284:6: error: 'struct vdpa_device' has no member named 
'features_valid'
 284 |  vdev->features_valid = true;
 |  ^~
   include/linux/vdpa.h: In function 'vdpa_get_config':
   include/linux/vdpa.h:298:11: error: 'struct vdpa_device' has no member named 
'features_valid'
 298 |  if (!vdev->features_valid)
 |   ^~
   drivers/virtio/virtio_vdpa.c: In function 'virtio_vdpa_get':
   drivers/virtio/virtio_vdpa.c:60:32: warning: unused variable 'ops' 
[-Wunused-variable]
  60 |  const struct vdpa_config_ops *ops = vdpa->config;
 |^~~
   drivers/virtio/virtio_vdpa.c: In function 'virtio_vdpa_finalize_features':
>> drivers/virtio/virtio_vdpa.c:301:9: error: void value not ignored as it 
>> ought to be
 301 |  return vdpa_set_features(vdpa, vdev->features);
 | ^~~
   drivers/virtio/virtio_vdpa.c:296:32: warning: unused variable 'ops' 
[-Wunused-variable]
 296 |  const struct vdpa_config_ops *ops = vdpa->config;
 |^~~
>> drivers/virtio/virtio_vdpa.c:302:1: warning: control reaches end of non-void 
>> function [-Wreturn-type]
 302 | }
 | ^

vim +301 drivers/virtio/virtio_vdpa.c

   292  
   293  static int virtio_vdpa_finalize_features(struct virtio_device *vdev)
   294  {
   295  struct vdpa_device *vdpa = vd_get_vdpa(vdev);
   296  const struct vdpa_config_ops *ops = vdpa->config;
   297  
   298  /* Give virtio_ring a chance to accept features. */
   299  vring_transport_features(vdev);
   300  
 > 301  return vdpa_set_features(vdpa, vdev->features);
 > 302  }
   303  

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[vhost:vhost 38/45] include/linux/vdpa.h:43:28: sparse: sparse: expected ; at end of declaration

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost
head:   84d40e4b4bc64456abf5ef5663871053b40e84ac
commit: fee8fe6bd8ccacd27e963b71b4f943be3721779e [38/45] vdpa: make sure 
set_features in invoked for legacy
:: branch date: 5 hours ago
:: commit date: 6 hours ago
config: x86_64-randconfig-s021-20200727 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-14) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.2-94-geb6779f6-dirty
git checkout fee8fe6bd8ccacd27e963b71b4f943be3721779e
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 


sparse warnings: (new ones prefixed by >>)

   drivers/vdpa/vdpa.c: note: in included file:
>> include/linux/vdpa.h:43:28: sparse: sparse: expected ; at end of declaration
   include/linux/vdpa.h:43:28: sparse: sparse: Expected } at end of 
struct-union-enum-specifier
   include/linux/vdpa.h:43:28: sparse: sparse: got .
--
   drivers/vdpa/ifcvf/ifcvf_main.c: note: in included file (through 
drivers/vdpa/ifcvf/ifcvf_base.h):
>> include/linux/vdpa.h:43:28: sparse: sparse: expected ; at end of declaration
   include/linux/vdpa.h:43:28: sparse: sparse: Expected } at end of 
struct-union-enum-specifier
   include/linux/vdpa.h:43:28: sparse: sparse: got .
--
   drivers/vdpa/ifcvf/ifcvf_base.c: note: in included file (through 
drivers/vdpa/ifcvf/ifcvf_base.h):
>> include/linux/vdpa.h:43:28: sparse: sparse: expected ; at end of declaration
   include/linux/vdpa.h:43:28: sparse: sparse: Expected } at end of 
struct-union-enum-specifier
   include/linux/vdpa.h:43:28: sparse: sparse: got .

# 
https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git/commit/?id=fee8fe6bd8ccacd27e963b71b4f943be3721779e
git remote add vhost 
https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git
git remote update vhost
git checkout fee8fe6bd8ccacd27e963b71b4f943be3721779e
vim +43 include/linux/vdpa.h

c25a26e653a61b Jason Wang 2020-05-29  29  
961e9c84077f6c Jason Wang 2020-03-26  30  /**
961e9c84077f6c Jason Wang 2020-03-26  31   * vDPA device - 
representation of a vDPA device
961e9c84077f6c Jason Wang 2020-03-26  32   * @dev: underlying device
961e9c84077f6c Jason Wang 2020-03-26  33   * @dma_dev: the actual 
device that is performing DMA
961e9c84077f6c Jason Wang 2020-03-26  34   * @config: the configuration 
ops for this device.
961e9c84077f6c Jason Wang 2020-03-26  35   * @index: device index
fee8fe6bd8ccac Michael S. Tsirkin 2020-07-27  36   * @features_valid: were 
features initialized? for legacy guests
961e9c84077f6c Jason Wang 2020-03-26  37   */
961e9c84077f6c Jason Wang 2020-03-26  38  struct vdpa_device {
961e9c84077f6c Jason Wang 2020-03-26  39struct device dev;
961e9c84077f6c Jason Wang 2020-03-26  40struct device *dma_dev;
961e9c84077f6c Jason Wang 2020-03-26  41const struct 
vdpa_config_ops *config;
961e9c84077f6c Jason Wang 2020-03-26  42unsigned int index;
fee8fe6bd8ccac Michael S. Tsirkin 2020-07-27 @43bool features_valid.
961e9c84077f6c Jason Wang 2020-03-26  44  };
961e9c84077f6c Jason Wang 2020-03-26  45  

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Re: [PATCH V3 vhost next 10/10] vdpa/mlx5: Add VDPA driver for supported mlx5 devices

[kernel test robot]

Hi Eli,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on next-20200727]

url:
https://github.com/0day-ci/linux/commits/Eli-Cohen/VDPA-support-for-Mellanox-ConnectX-devices/20200728-140938
base:e9a523ff8f76de0768857f02ea76437d3b39d151
config: mips-allmodconfig (attached as .config)
compiler: mips-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=mips 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>, old ones prefixed by <<):

ERROR: modpost: "fw_arg3" [drivers/mtd/parsers/bcm63xxpart.ko] undefined!
>> ERROR: modpost: "__udivdi3" [drivers/vdpa/mlx5/mlx5_vdpa.ko] undefined!

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[vhost:vhost 38/45] include/linux/vdpa.h:43:21: error: expected ';' at end of declaration list

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost
head:   84d40e4b4bc64456abf5ef5663871053b40e84ac
commit: fee8fe6bd8ccacd27e963b71b4f943be3721779e [38/45] vdpa: make sure 
set_features in invoked for legacy
config: x86_64-randconfig-a014-20200727 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
8dc820393219c7ee440b4ec86c9a201301943276)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
git checkout fee8fe6bd8ccacd27e963b71b4f943be3721779e
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

   In file included from drivers/vdpa/vdpa.c:13:
>> include/linux/vdpa.h:43:21: error: expected ';' at end of declaration list
   bool features_valid.
  ^
  ;
   1 error generated.

vim +43 include/linux/vdpa.h

29  
30  /**
31   * vDPA device - representation of a vDPA device
32   * @dev: underlying device
33   * @dma_dev: the actual device that is performing DMA
34   * @config: the configuration ops for this device.
35   * @index: device index
36   * @features_valid: were features initialized? for legacy guests
37   */
38  struct vdpa_device {
39  struct device dev;
40  struct device *dma_dev;
41  const struct vdpa_config_ops *config;
42  unsigned int index;
  > 43  bool features_valid.
44  };
45  

---
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[vhost:vhost 38/45] include/linux/vdpa.h:43:21: error: expected ':', ',', ';', '}' or '__attribute__' before '.' token

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost
head:   84d40e4b4bc64456abf5ef5663871053b40e84ac
commit: fee8fe6bd8ccacd27e963b71b4f943be3721779e [38/45] vdpa: make sure 
set_features in invoked for legacy
config: m68k-randconfig-r022-20200727 (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout fee8fe6bd8ccacd27e963b71b4f943be3721779e
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=m68k 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

   In file included from include/linux/kernel.h:11,
from drivers/vhost/vdpa.c:14:
   include/linux/scatterlist.h: In function 'sg_set_buf':
   arch/m68k/include/asm/page_mm.h:169:49: warning: ordered comparison of 
pointer with null pointer [-Wextra]
 169 | #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void 
*)PAGE_OFFSET && (void *)(kaddr) < high_memory)
 | ^~
   include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
  78 | # define unlikely(x) __builtin_expect(!!(x), 0)
 |  ^
   include/linux/scatterlist.h:143:2: note: in expansion of macro 'BUG_ON'
 143 |  BUG_ON(!virt_addr_valid(buf));
 |  ^~
   include/linux/scatterlist.h:143:10: note: in expansion of macro 
'virt_addr_valid'
 143 |  BUG_ON(!virt_addr_valid(buf));
 |  ^~~
   In file included from drivers/vhost/vdpa.c:21:
   include/linux/vdpa.h: At top level:
>> include/linux/vdpa.h:43:21: error: expected ':', ',', ';', '}' or 
>> '__attribute__' before '.' token
  43 |  bool features_valid.
 | ^
   include/linux/vdpa.h: In function 'vdpa_reset':
>> include/linux/vdpa.h:276:6: error: 'struct vdpa_device' has no member named 
>> 'features_valid'
 276 |  vdev->features_valid = false;
 |  ^~
   include/linux/vdpa.h: In function 'vdpa_set_features':
   include/linux/vdpa.h:284:6: error: 'struct vdpa_device' has no member named 
'features_valid'
 284 |  vdev->features_valid = true;
 |  ^~
   include/linux/vdpa.h: In function 'vdpa_get_config':
   include/linux/vdpa.h:298:11: error: 'struct vdpa_device' has no member named 
'features_valid'
 298 |  if (!vdev->features_valid)
 |   ^~
   In file included from arch/m68k/include/asm/bug.h:32,
from include/linux/bug.h:5,
from include/linux/thread_info.h:12,
from include/asm-generic/preempt.h:5,
from ./arch/m68k/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:78,
from include/linux/spinlock.h:51,
from include/linux/seqlock.h:36,
from include/linux/time.h:6,
from include/linux/stat.h:19,
from include/linux/module.h:13,
from drivers/vhost/vdpa.c:15:
   include/linux/dma-mapping.h: In function 'dma_map_resource':
   arch/m68k/include/asm/page_mm.h:169:49: warning: ordered comparison of 
pointer with null pointer [-Wextra]
 169 | #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void 
*)PAGE_OFFSET && (void *)(kaddr) < high_memory)
 | ^~
   include/asm-generic/bug.h:144:27: note: in definition of macro 'WARN_ON_ONCE'
 144 |  int __ret_warn_once = !!(condition);   \
 |   ^
   arch/m68k/include/asm/page_mm.h:170:25: note: in expansion of macro 
'virt_addr_valid'
 170 | #define pfn_valid(pfn)  virt_addr_valid(pfn_to_virt(pfn))
 | ^~~
   include/linux/dma-mapping.h:352:19: note: in expansion of macro 'pfn_valid'
 352 |  if (WARN_ON_ONCE(pfn_valid(PHYS_PFN(phys_addr
 |   ^
--
   In file included from drivers/vdpa/vdpa.c:13:
>> include/linux/vdpa.h:43:21: error: expected ':', ',', ';', '}' or 
>> '__attribute__' before '.' token
  43 |  bool features_valid.
 | ^
   include/linux/vdpa.h: In function 'vdpa_reset':
>> include/linux/vdpa.h:276:6: error: 'struct vdpa_device' has no member named 
>> 'features_valid'
 276 |  vdev->features_valid = false;
 |  ^~
   include/linux/vdpa.h: In function 'vdpa_set_features':
   include/linux/vdpa.h:284:6: error: 'struct vdpa_device' has no member named 
'features_valid'
 284 |  vdev->features_valid = true;
 

Re: [PATCH V2 vhost next 10/10] vdpa/mlx5: Add VDPA driver for supported mlx5 devices

[kernel test robot]

Hi Eli,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on next-20200717]

url:
https://github.com/0day-ci/linux/commits/Eli-Cohen/VDPA-support-for-Mellanox-ConnectX-devices/20200720-160220
base:aab7ee9f8ff0110bfcd594b33dc33748dc1baf46
config: x86_64-allyesconfig (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
cf1105069648446d58adfb7a6cc590013d6886ba)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

   In file included from drivers/vdpa/mlx5/net/mlx5_vnet.c:12:
>> drivers/vdpa/mlx5/net/mlx5_vnet.h:13:10: fatal error: 'mlx5_vdpa.h' file not 
>> found
   #include "mlx5_vdpa.h"
^
   1 error generated.

vim +13 drivers/vdpa/mlx5/net/mlx5_vnet.h

 6  
 7  #include 
 8  #include 
 9  #include 
10  #include 
11  #include 
12  #include 
  > 13  #include "mlx5_vdpa.h"
14  

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Re: [PATCH V2 vhost next 10/10] vdpa/mlx5: Add VDPA driver for supported mlx5 devices

[kernel test robot]

Hi Eli,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on next-20200717]

url:
https://github.com/0day-ci/linux/commits/Eli-Cohen/VDPA-support-for-Mellanox-ConnectX-devices/20200720-160220
base:aab7ee9f8ff0110bfcd594b33dc33748dc1baf46
config: arc-allyesconfig (attached as .config)
compiler: arc-elf-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

>> drivers/vdpa/mlx5/net/main.c:7:10: fatal error: mlx5_vdpa_ifc.h: No such 
>> file or directory
   7 | #include "mlx5_vdpa_ifc.h"
 |  ^
   compilation terminated.
--
   In file included from drivers/vdpa/mlx5/net/mlx5_vnet.c:12:
>> drivers/vdpa/mlx5/net/mlx5_vnet.h:13:10: fatal error: mlx5_vdpa.h: No such 
>> file or directory
  13 | #include "mlx5_vdpa.h"
 |  ^
   compilation terminated.

vim +7 drivers/vdpa/mlx5/net/main.c

 3  
 4  #include 
 5  #include 
 6  #include 
   > 7  #include "mlx5_vdpa_ifc.h"
 8  #include "mlx5_vnet.h"
 9  

---
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Re: [PATCH] VMCI: Enforce queuepair max size for IOCTL_VMCI_QUEUEPAIR_ALLOC

[kernel test robot]

Hi Jorgen,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linux/master]
[also build test WARNING on char-misc/char-misc-testing linus/master v5.11-rc3 
next-20210111]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Jorgen-Hansen/VMCI-Enforce-queuepair-max-size-for-IOCTL_VMCI_QUEUEPAIR_ALLOC/20210111-204259
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
09162bc32c880a791c6c0668ce0745cf7958f576
config: i386-randconfig-s001-20210111 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.3-208-g46a52ca4-dirty
# 
https://github.com/0day-ci/linux/commit/0923aeac7af9635dd6bf0141e8188f4815e573d2
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Jorgen-Hansen/VMCI-Enforce-queuepair-max-size-for-IOCTL_VMCI_QUEUEPAIR_ALLOC/20210111-204259
git checkout 0923aeac7af9635dd6bf0141e8188f4815e573d2
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 


"sparse warnings: (new ones prefixed by >>)"
>> drivers/misc/vmw_vmci/vmci_queue_pair.c:533:20: sparse: sparse: incompatible 
>> types in comparison expression (different type sizes):
>> drivers/misc/vmw_vmci/vmci_queue_pair.c:533:20: sparse:unsigned int *
>> drivers/misc/vmw_vmci/vmci_queue_pair.c:533:20: sparse:unsigned long *

vim +533 drivers/misc/vmw_vmci/vmci_queue_pair.c

   519  
   520  /*
   521   * Allocates kernel VA space of specified size plus space for the queue
   522   * and kernel interface.  This is different from the guest queue 
allocator,
   523   * because we do not allocate our own queue header/data pages here but
   524   * share those of the guest.
   525   */
   526  static struct vmci_queue *qp_host_alloc_queue(u64 size)
   527  {
   528  struct vmci_queue *queue;
   529  size_t queue_page_size;
   530  u64 num_pages;
   531  const size_t queue_size = sizeof(*queue) + 
sizeof(*(queue->kernel_if));
   532  
 > 533  if (size > min(VMCI_MAX_GUEST_QP_MEMORY, SIZE_MAX - PAGE_SIZE))
   534  return NULL;
   535  num_pages = DIV_ROUND_UP(size, PAGE_SIZE) + 1;
   536  if (num_pages > (SIZE_MAX - queue_size) /
   537   sizeof(*queue->kernel_if->u.h.page))
   538  return NULL;
   539  
   540  queue_page_size = num_pages * 
sizeof(*queue->kernel_if->u.h.page);
   541  
   542  queue = kzalloc(queue_size + queue_page_size, GFP_KERNEL);
   543  if (queue) {
   544  queue->q_header = NULL;
   545  queue->saved_header = NULL;
   546  queue->kernel_if = (struct vmci_queue_kern_if *)(queue 
+ 1);
   547  queue->kernel_if->host = true;
   548  queue->kernel_if->mutex = NULL;
   549  queue->kernel_if->num_pages = num_pages;
   550  queue->kernel_if->u.h.header_page =
   551  (struct page **)((u8 *)queue + queue_size);
   552  queue->kernel_if->u.h.page =
   553  >kernel_if->u.h.header_page[1];
   554  }
   555  
   556  return queue;
   557  }
   558  

---
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Re: [PATCH v4 15/17] x86/hyperv: implement an MSI domain for root partition

[kernel test robot]

Hi Wei,

I love your patch! Perhaps something to improve:

[auto build test WARNING on e71ba9452f0b5b2e8dc8aa5445198cd9214a6a62]

url:
https://github.com/0day-ci/linux/commits/Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20210107-044149
base:e71ba9452f0b5b2e8dc8aa5445198cd9214a6a62
config: i386-randconfig-m021-20210106 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
# 
https://github.com/0day-ci/linux/commit/376aee69c6ab18dc23b0386590bee82d59555be8
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20210107-044149
git checkout 376aee69c6ab18dc23b0386590bee82d59555be8
# save the attached .config to linux build tree
make W=1 ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

>> arch/x86/hyperv/irqdomain.c:317:28: warning: no previous prototype for 
>> 'hv_create_pci_msi_domain' [-Wmissing-prototypes]
 317 | struct irq_domain * __init hv_create_pci_msi_domain(void)
 |^~~~


vim +/hv_create_pci_msi_domain +317 arch/x86/hyperv/irqdomain.c

   316  
 > 317  struct irq_domain * __init hv_create_pci_msi_domain(void)
   318  {
   319  struct irq_domain *d = NULL;
   320  struct fwnode_handle *fn;
   321  
   322  fn = irq_domain_alloc_named_fwnode("HV-PCI-MSI");
   323  if (fn)
   324  d = pci_msi_create_irq_domain(fn, 
_pci_msi_domain_info, x86_vector_domain);
   325  
   326  /* No point in going further if we can't get an irq domain */
   327  BUG_ON(!d);
   328  
   329  return d;
   330  }
   331  

---
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Re: [PATCH] drivers: gpio: add virtio-gpio guest driver

[kernel test robot]

Hi "Enrico,

I love your patch! Yet something to improve:

[auto build test ERROR on gpio/for-next]
[also build test ERROR on linux/master linus/master v5.10-rc5 next-20201127]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Enrico-Weigelt-metux-IT-consult/drivers-gpio-add-virtio-gpio-guest-driver/20201128-023506
base:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git 
for-next
config: c6x-randconfig-p002-20201128 (attached as .config)
compiler: c6x-elf-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# 
https://github.com/0day-ci/linux/commit/a134ec4827b0ffb7edd6a292238bd93fb377f127
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Enrico-Weigelt-metux-IT-consult/drivers-gpio-add-virtio-gpio-guest-driver/20201128-023506
git checkout a134ec4827b0ffb7edd6a292238bd93fb377f127
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=c6x 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

>> error: include/uapi/linux/virtio_gpio.h: missing "WITH Linux-syscall-note" 
>> for SPDX-License-Identifier
   make[2]: *** [scripts/Makefile.headersinst:63: 
usr/include/linux/virtio_gpio.h] Error 1
   make[2]: Target '__headers' not remade because of errors.
   make[1]: *** [Makefile:1288: headers] Error 2
   arch/c6x/kernel/asm-offsets.c:14:6: warning: no previous prototype for 'foo' 
[-Wmissing-prototypes]
  14 | void foo(void)
 |  ^~~
   :1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:185: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.

---
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Re: [PATCH v10 63/81] KVM: introspection: add KVMI_VCPU_INJECT_EXCEPTION + KVMI_VCPU_EVENT_TRAP

[kernel test robot]

Hi "Adalbert,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on dc924b062488a0376aae41d3e0a27dc99f852a5e]

url:
https://github.com/0day-ci/linux/commits/Adalbert-Laz-r/VM-introspection/20201125-174530
base:dc924b062488a0376aae41d3e0a27dc99f852a5e
config: x86_64-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
# 
https://github.com/0day-ci/linux/commit/248beb976ebfd430c3535cc442d0ba198f1ab1d6
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Adalbert-Laz-r/VM-introspection/20201125-174530
git checkout 248beb976ebfd430c3535cc442d0ba198f1ab1d6
# save the attached .config to linux build tree
make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   arch/x86/kvm/kvmi_msg.c: In function 'handle_vcpu_inject_exception':
>> arch/x86/kvm/kvmi_msg.c:158:38: warning: variable 'arch' set but not used 
>> [-Wunused-but-set-variable]
 158 |  struct kvm_vcpu_arch_introspection *arch;
 |  ^~~~

vim +/arch +158 arch/x86/kvm/kvmi_msg.c

   152  
   153  static int handle_vcpu_inject_exception(const struct kvmi_vcpu_msg_job 
*job,
   154  const struct kvmi_msg_hdr *msg,
   155  const void *_req)
   156  {
   157  const struct kvmi_vcpu_inject_exception *req = _req;
 > 158  struct kvm_vcpu_arch_introspection *arch;
   159  struct kvm_vcpu *vcpu = job->vcpu;
   160  int ec;
   161  
   162  arch = (vcpu)->arch;
   163  
   164  if (!kvmi_is_event_allowed(KVMI(vcpu->kvm), 
KVMI_VCPU_EVENT_TRAP))
   165  ec = -KVM_EPERM;
   166  else if (req->padding1 || req->padding2)
   167  ec = -KVM_EINVAL;
   168  else if (VCPUI(vcpu)->arch.exception.pending ||
   169  VCPUI(vcpu)->arch.exception.send_event)
   170  ec = -KVM_EBUSY;
   171  else
   172  ec = kvmi_arch_cmd_vcpu_inject_exception(vcpu, req);
   173  
   174  return kvmi_msg_vcpu_reply(job, msg, ec, NULL, 0);
   175  }
   176  

---
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Re: [PATCH v10 75/81] KVM: introspection: add KVMI_VCPU_EVENT_PF

[kernel test robot]

Hi "Adalbert,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on dc924b062488a0376aae41d3e0a27dc99f852a5e]

url:
https://github.com/0day-ci/linux/commits/Adalbert-Laz-r/VM-introspection/20201125-174530
base:dc924b062488a0376aae41d3e0a27dc99f852a5e
config: x86_64-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
# 
https://github.com/0day-ci/linux/commit/e2e6aad169a874e4a2c4f4639c252f6b1d816d7b
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Adalbert-Laz-r/VM-introspection/20201125-174530
git checkout e2e6aad169a874e4a2c4f4639c252f6b1d816d7b
# save the attached .config to linux build tree
make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   arch/x86/kvm/../../../virt/kvm/introspection/kvmi.c:481:5: warning: no 
previous prototype for 'kvmi_hook' [-Wmissing-prototypes]
 481 | int kvmi_hook(struct kvm *kvm, const struct kvm_introspection_hook 
*hook)
 | ^
>> arch/x86/kvm/../../../virt/kvm/introspection/kvmi.c:1076:6: warning: no 
>> previous prototype for 'kvmi_restricted_page_access' [-Wmissing-prototypes]
1076 | bool kvmi_restricted_page_access(struct kvm_introspection *kvmi, 
gpa_t gpa,
 |  ^~~

vim +/kvmi_restricted_page_access +1076 
arch/x86/kvm/../../../virt/kvm/introspection/kvmi.c

  1075  
> 1076  bool kvmi_restricted_page_access(struct kvm_introspection *kvmi, gpa_t 
> gpa,
  1077   u8 access)
  1078  {
  1079  u8 allowed_access;
  1080  int err;
  1081  
  1082  err = kvmi_get_gfn_access(kvmi, gpa_to_gfn(gpa), 
_access);
  1083  if (err)
  1084  return false;
  1085  
  1086  /*
  1087   * We want to be notified only for violations involving access
  1088   * bits that we've specifically cleared
  1089   */
  1090  if (access & (~allowed_access))
  1091  return true;
  1092  
  1093  return false;
  1094  }
  1095  

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Re: [PATCH v10 79/81] KVM: introspection: add KVMI_VCPU_TRANSLATE_GVA

[kernel test robot]

Hi "Adalbert,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on dc924b062488a0376aae41d3e0a27dc99f852a5e]

url:
https://github.com/0day-ci/linux/commits/Adalbert-Laz-r/VM-introspection/20201125-174530
base:dc924b062488a0376aae41d3e0a27dc99f852a5e
config: x86_64-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
# 
https://github.com/0day-ci/linux/commit/7e18b2b2a0317b316591c7fcde367da2f6694550
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Adalbert-Laz-r/VM-introspection/20201125-174530
git checkout 7e18b2b2a0317b316591c7fcde367da2f6694550
# save the attached .config to linux build tree
make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   arch/x86/kvm/kvmi_msg.c: In function 'handle_vcpu_inject_exception':
   arch/x86/kvm/kvmi_msg.c:158:38: warning: variable 'arch' set but not used 
[-Wunused-but-set-variable]
 158 |  struct kvm_vcpu_arch_introspection *arch;
 |  ^~~~
   arch/x86/kvm/kvmi_msg.c: In function 'handle_vcpu_get_xsave':
   arch/x86/kvm/kvmi_msg.c:203:11: warning: variable 'ec' set but not used 
[-Wunused-but-set-variable]
 203 |  int err, ec = 0;
 |   ^~
   arch/x86/kvm/kvmi_msg.c: At top level:
>> arch/x86/kvm/kvmi_msg.c:316:5: warning: no previous prototype for 
>> 'handle_vcpu_translate_gva' [-Wmissing-prototypes]
 316 | int handle_vcpu_translate_gva(const struct kvmi_vcpu_msg_job *job,
 | ^

vim +/handle_vcpu_translate_gva +316 arch/x86/kvm/kvmi_msg.c

   152  
   153  static int handle_vcpu_inject_exception(const struct kvmi_vcpu_msg_job 
*job,
   154  const struct kvmi_msg_hdr *msg,
   155  const void *_req)
   156  {
   157  const struct kvmi_vcpu_inject_exception *req = _req;
 > 158  struct kvm_vcpu_arch_introspection *arch;
   159  struct kvm_vcpu *vcpu = job->vcpu;
   160  int ec;
   161  
   162  arch = (vcpu)->arch;
   163  
   164  if (!kvmi_is_event_allowed(KVMI(vcpu->kvm), 
KVMI_VCPU_EVENT_TRAP))
   165  ec = -KVM_EPERM;
   166  else if (req->padding1 || req->padding2)
   167  ec = -KVM_EINVAL;
   168  else if (VCPUI(vcpu)->arch.exception.pending ||
   169  VCPUI(vcpu)->arch.exception.send_event ||
   170  VCPUI(vcpu)->singlestep.loop)
   171  ec = -KVM_EBUSY;
   172  else
   173  ec = kvmi_arch_cmd_vcpu_inject_exception(vcpu, req);
   174  
   175  return kvmi_msg_vcpu_reply(job, msg, ec, NULL, 0);
   176  }
   177  
   178  static int handle_vcpu_get_xcr(const struct kvmi_vcpu_msg_job *job,
   179 const struct kvmi_msg_hdr *msg,
   180 const void *_req)
   181  {
   182  const struct kvmi_vcpu_get_xcr *req = _req;
   183  struct kvmi_vcpu_get_xcr_reply rpl;
   184  int ec = 0;
   185  
   186  memset(, 0, sizeof(rpl));
   187  
   188  if (non_zero_padding(req->padding, ARRAY_SIZE(req->padding)))
   189  ec = -KVM_EINVAL;
   190  else if (req->xcr != 0)
   191  ec = -KVM_EINVAL;
   192  else
   193  rpl.value = job->vcpu->arch.xcr0;
   194  
   195  return kvmi_msg_vcpu_reply(job, msg, ec, , sizeof(rpl));
   196  }
   197  
   198  static int handle_vcpu_get_xsave(const struct kvmi_vcpu_msg_job *job,
   199   const struct kvmi_msg_hdr *msg,
   200   const void *req)
   201  {
   202  struct kvmi_vcpu_get_xsave_reply *rpl;
   203  int err, ec = 0;
   204  
   205  rpl = kvmi_msg_alloc();
   206  if (!rpl)
   207  ec = -KVM_ENOMEM;
   208  else
   209  kvm_vcpu_ioctl_x86_get_xsave(job->vcpu, >xsave);
   210  
   211  err = kvmi_msg_vcpu_reply(job, msg, 0, rpl, sizeof(*rpl));
   212  
   213  kvmi_msg_free(rpl);
   214  return err;
   215  }
   216  
   217  static int handle_vcpu_set_xsave(const struct kvmi_vcpu_msg_job *job,
   218   const struct kvmi_msg_hdr *msg,
   219   const void *req)
   220  {
   221  size_t req_size, msg_size = msg->size;
   222  int ec = 0;
   223  
   224  if (check_sub_overflow(msg_size, sizeof(struct kvmi_vcpu_hdr),
   225 _size))
   226 

Re: [PATCH v10 33/81] KVM: introspection: add hook/unhook ioctls

[kernel test robot]

Hi "Adalbert,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on dc924b062488a0376aae41d3e0a27dc99f852a5e]

url:
https://github.com/0day-ci/linux/commits/Adalbert-Laz-r/VM-introspection/20201125-174530
base:dc924b062488a0376aae41d3e0a27dc99f852a5e
config: x86_64-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
# 
https://github.com/0day-ci/linux/commit/fa233c4711c43446c876e84ca6f87b702b0990a8
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Adalbert-Laz-r/VM-introspection/20201125-174530
git checkout fa233c4711c43446c876e84ca6f87b702b0990a8
# save the attached .config to linux build tree
make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   arch/x86/kvm/../../../virt/kvm/introspection/kvmi.c:90:6: warning: no 
previous prototype for 'kvmi_put' [-Wmissing-prototypes]
  90 | void kvmi_put(struct kvm *kvm)
 |  ^~~~
>> arch/x86/kvm/../../../virt/kvm/introspection/kvmi.c:121:5: warning: no 
>> previous prototype for 'kvmi_hook' [-Wmissing-prototypes]
 121 | int kvmi_hook(struct kvm *kvm, const struct kvm_introspection_hook 
*hook)
 | ^

vim +/kvmi_hook +121 arch/x86/kvm/../../../virt/kvm/introspection/kvmi.c

   120  
 > 121  int kvmi_hook(struct kvm *kvm, const struct kvm_introspection_hook 
 > *hook)
   122  {
   123  struct kvm_introspection *kvmi;
   124  int err = 0;
   125  
   126  mutex_lock(>kvmi_lock);
   127  
   128  if (kvm->kvmi) {
   129  err = -EEXIST;
   130  goto out;
   131  }
   132  
   133  kvmi = kvmi_alloc(kvm, hook);
   134  if (!kvmi) {
   135  err = -ENOMEM;
   136  goto out;
   137  }
   138  
   139  kvm->kvmi = kvmi;
   140  
   141  err = __kvmi_hook(kvm, hook);
   142  if (err)
   143  goto destroy;
   144  
   145  init_completion(>kvmi_complete);
   146  
   147  refcount_set(>kvmi_ref, 1);
   148  
   149  kvmi->recv = kthread_run(kvmi_recv_thread, kvmi, "kvmi-recv");
   150  if (IS_ERR(kvmi->recv)) {
   151  err = -ENOMEM;
   152  kvmi_put(kvm);
   153  goto unhook;
   154  }
   155  
   156  goto out;
   157  
   158  unhook:
   159  __kvmi_unhook(kvm);
   160  destroy:
   161  kvmi_destroy(kvmi);
   162  out:
   163  mutex_unlock(>kvmi_lock);
   164  return err;
   165  }
   166  

---
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Re: [PATCH v10 25/81] KVM: x86: export kvm_vcpu_ioctl_x86_get_xsave()

[kernel test robot]

Hi "Adalbert,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on dc924b062488a0376aae41d3e0a27dc99f852a5e]

url:
https://github.com/0day-ci/linux/commits/Adalbert-Laz-r/VM-introspection/20201125-174530
base:dc924b062488a0376aae41d3e0a27dc99f852a5e
config: s390-allyesconfig (attached as .config)
compiler: s390-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# 
https://github.com/0day-ci/linux/commit/311f49fb9bd7c7968a435ccfbf075cd4d1bd8079
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Adalbert-Laz-r/VM-introspection/20201125-174530
git checkout 311f49fb9bd7c7968a435ccfbf075cd4d1bd8079
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=s390 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   In file included from arch/s390/kernel/asm-offsets.c:11:
>> include/linux/kvm_host.h:925:14: warning: 'struct kvm_xsave' declared inside 
>> parameter list will not be visible outside of this definition or declaration
 925 |   struct kvm_xsave *guest_xsave);
 |  ^
--
   In file included from arch/s390/kernel/asm-offsets.c:11:
>> include/linux/kvm_host.h:925:14: warning: 'struct kvm_xsave' declared inside 
>> parameter list will not be visible outside of this definition or declaration
 925 |   struct kvm_xsave *guest_xsave);
 |  ^

vim +925 include/linux/kvm_host.h

   900  
   901  int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
   902  struct kvm_translation *tr);
   903  
   904  int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs 
*regs);
   905  void kvm_arch_vcpu_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs 
*regs);
   906  int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs 
*regs);
   907  void kvm_arch_vcpu_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs 
*regs,
   908  bool clear_exception);
   909  int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
   910struct kvm_sregs *sregs);
   911  void kvm_arch_vcpu_get_sregs(struct kvm_vcpu *vcpu,
   912struct kvm_sregs *sregs);
   913  int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
   914struct kvm_sregs *sregs);
   915  int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
   916  struct kvm_mp_state *mp_state);
   917  int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
   918  struct kvm_mp_state *mp_state);
   919  int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
   920  struct kvm_guest_debug *dbg);
   921  int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu);
   922  int kvm_arch_vcpu_set_guest_debug(struct kvm_vcpu *vcpu,
   923struct kvm_guest_debug *dbg);
   924  void kvm_vcpu_ioctl_x86_get_xsave(struct kvm_vcpu *vcpu,
 > 925struct kvm_xsave *guest_xsave);
   926  

---
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Re: [PATCH v10 67/81] KVM: introspection: add KVMI_VCPU_GET_XSAVE

[kernel test robot]

Hi "Adalbert,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on dc924b062488a0376aae41d3e0a27dc99f852a5e]

url:
https://github.com/0day-ci/linux/commits/Adalbert-Laz-r/VM-introspection/20201125-174530
base:dc924b062488a0376aae41d3e0a27dc99f852a5e
config: x86_64-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
# 
https://github.com/0day-ci/linux/commit/c8777a54e026a93f283f7dfac30ed2cb2563fd03
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Adalbert-Laz-r/VM-introspection/20201125-174530
git checkout c8777a54e026a93f283f7dfac30ed2cb2563fd03
# save the attached .config to linux build tree
make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   arch/x86/kvm/kvmi_msg.c: In function 'handle_vcpu_inject_exception':
   arch/x86/kvm/kvmi_msg.c:158:38: warning: variable 'arch' set but not used 
[-Wunused-but-set-variable]
 158 |  struct kvm_vcpu_arch_introspection *arch;
 |  ^~~~
   arch/x86/kvm/kvmi_msg.c: In function 'handle_vcpu_get_xsave':
>> arch/x86/kvm/kvmi_msg.c:202:11: warning: variable 'ec' set but not used 
>> [-Wunused-but-set-variable]
 202 |  int err, ec = 0;
 |   ^~

vim +/ec +202 arch/x86/kvm/kvmi_msg.c

   196  
   197  static int handle_vcpu_get_xsave(const struct kvmi_vcpu_msg_job *job,
   198   const struct kvmi_msg_hdr *msg,
   199   const void *req)
   200  {
   201  struct kvmi_vcpu_get_xsave_reply *rpl;
 > 202  int err, ec = 0;
   203  
   204  rpl = kvmi_msg_alloc();
   205  if (!rpl)
   206  ec = -KVM_ENOMEM;
   207  else
   208  kvm_vcpu_ioctl_x86_get_xsave(job->vcpu, >xsave);
   209  
   210  err = kvmi_msg_vcpu_reply(job, msg, 0, rpl, sizeof(*rpl));
   211  
   212  kvmi_msg_free(rpl);
   213  return err;
   214  }
   215  

---
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Re: [PATCH v10 66/81] KVM: introspection: add KVMI_VCPU_GET_XCR

[kernel test robot]

Hi "Adalbert,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on dc924b062488a0376aae41d3e0a27dc99f852a5e]

url:
https://github.com/0day-ci/linux/commits/Adalbert-Laz-r/VM-introspection/20201125-174530
base:dc924b062488a0376aae41d3e0a27dc99f852a5e
config: x86_64-randconfig-a015-20201125 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
# 
https://github.com/0day-ci/linux/commit/f4ab174ddeb4c60f52bd15cab4263701c7f543c9
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Adalbert-Laz-r/VM-introspection/20201125-174530
git checkout f4ab174ddeb4c60f52bd15cab4263701c7f543c9
# save the attached .config to linux build tree
make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

   In file included from ./usr/include/linux/kvmi.h:11,
from :32:
>> ./usr/include/asm/kvmi.h:111:2: error: unknown type name 'u64'
 111 |  u64 value;
 |  ^~~

---
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Re: [PATCH v10 32/81] KVM: introduce VM introspection

[kernel test robot]

Hi "Adalbert,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on dc924b062488a0376aae41d3e0a27dc99f852a5e]

url:
https://github.com/0day-ci/linux/commits/Adalbert-Laz-r/VM-introspection/20201125-174530
base:dc924b062488a0376aae41d3e0a27dc99f852a5e
config: s390-randconfig-r005-20201125 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
77e98eaee2e8d4b9b297b66fda5b1e51e2a6)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
# 
https://github.com/0day-ci/linux/commit/6ffa5da71155bd0bed0d68c52af248bda256d0f2
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Adalbert-Laz-r/VM-introspection/20201125-174530
git checkout 6ffa5da71155bd0bed0d68c52af248bda256d0f2
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=s390 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

   include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
   ~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro 
'__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
 ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
   ___constant_swab32(x) : \
  ^
   include/uapi/linux/swab.h:21:12: note: expanded from macro 
'___constant_swab32'
   (((__u32)(x) & (__u32)0x00ffUL) >>  8) |\
 ^
   In file included from arch/s390/kvm/../../../virt/kvm/kvm_main.c:18:
   In file included from include/linux/kvm_host.h:32:
   In file included from include/linux/kvm_para.h:5:
   In file included from include/uapi/linux/kvm_para.h:40:
   In file included from arch/s390/include/asm/kvm_para.h:25:
   In file included from arch/s390/include/asm/diag.h:12:
   In file included from include/linux/if_ether.h:19:
   In file included from include/linux/skbuff.h:31:
   In file included from include/linux/dma-mapping.h:10:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:80:
   include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
   ~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro 
'__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
 ^
   include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
   ___constant_swab32(x) : \
  ^
   include/uapi/linux/swab.h:22:12: note: expanded from macro 
'___constant_swab32'
   (((__u32)(x) & (__u32)0xff00UL) >> 24)))
 ^
   In file included from arch/s390/kvm/../../../virt/kvm/kvm_main.c:18:
   In file included from include/linux/kvm_host.h:32:
   In file included from include/linux/kvm_para.h:5:
   In file included from include/uapi/linux/kvm_para.h:40:
   In file included from arch/s390/include/asm/kvm_para.h:25:
   In file included from arch/s390/include/asm/diag.h:12:
   In file included from include/linux/if_ether.h:19:
   In file included from include/linux/skbuff.h:31:
   In file included from include/linux/dma-mapping.h:10:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/s390/include/asm/io.h:80:
   include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a 
null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
   ~~ ^
   include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro 
'__le32_to_cpu'
   #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
 ^
   include/uapi/linux/swab.h:120:12: note: expanded from macro '__swab32'
   __fswab32(x))
 ^
   In file included from arch/s390/k

Re: [PATCH v10 25/81] KVM: x86: export kvm_vcpu_ioctl_x86_get_xsave()

[kernel test robot]

Hi "Adalbert,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on dc924b062488a0376aae41d3e0a27dc99f852a5e]

url:
https://github.com/0day-ci/linux/commits/Adalbert-Laz-r/VM-introspection/20201125-174530
base:dc924b062488a0376aae41d3e0a27dc99f852a5e
config: mips-randconfig-r013-20201125 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
77e98eaee2e8d4b9b297b66fda5b1e51e2a6)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install mips cross compiling tool for clang build
# apt-get install binutils-mips-linux-gnu
# 
https://github.com/0day-ci/linux/commit/311f49fb9bd7c7968a435ccfbf075cd4d1bd8079
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Adalbert-Laz-r/VM-introspection/20201125-174530
git checkout 311f49fb9bd7c7968a435ccfbf075cd4d1bd8079
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   In file included from arch/mips/kernel/asm-offsets.c:24:
>> include/linux/kvm_host.h:925:14: warning: declaration of 'struct kvm_xsave' 
>> will not be visible outside of this function [-Wvisibility]
 struct kvm_xsave *guest_xsave);
^
   arch/mips/kernel/asm-offsets.c:26:6: warning: no previous prototype for 
function 'output_ptreg_defines' [-Wmissing-prototypes]
   void output_ptreg_defines(void)
^
   arch/mips/kernel/asm-offsets.c:26:1: note: declare 'static' if the function 
is not intended to be used outside of this translation unit
   void output_ptreg_defines(void)
   ^
   static 
   arch/mips/kernel/asm-offsets.c:78:6: warning: no previous prototype for 
function 'output_task_defines' [-Wmissing-prototypes]
   void output_task_defines(void)
^
   arch/mips/kernel/asm-offsets.c:78:1: note: declare 'static' if the function 
is not intended to be used outside of this translation unit
   void output_task_defines(void)
   ^
   static 
   arch/mips/kernel/asm-offsets.c:93:6: warning: no previous prototype for 
function 'output_thread_info_defines' [-Wmissing-prototypes]
   void output_thread_info_defines(void)
^
   arch/mips/kernel/asm-offsets.c:93:1: note: declare 'static' if the function 
is not intended to be used outside of this translation unit
   void output_thread_info_defines(void)
   ^
   static 
   arch/mips/kernel/asm-offsets.c:110:6: warning: no previous prototype for 
function 'output_thread_defines' [-Wmissing-prototypes]
   void output_thread_defines(void)
^
   arch/mips/kernel/asm-offsets.c:110:1: note: declare 'static' if the function 
is not intended to be used outside of this translation unit
   void output_thread_defines(void)
   ^
   static 
   arch/mips/kernel/asm-offsets.c:138:6: warning: no previous prototype for 
function 'output_thread_fpu_defines' [-Wmissing-prototypes]
   void output_thread_fpu_defines(void)
^
   arch/mips/kernel/asm-offsets.c:138:1: note: declare 'static' if the function 
is not intended to be used outside of this translation unit
   void output_thread_fpu_defines(void)
   ^
   static 
   arch/mips/kernel/asm-offsets.c:181:6: warning: no previous prototype for 
function 'output_mm_defines' [-Wmissing-prototypes]
   void output_mm_defines(void)
^
   arch/mips/kernel/asm-offsets.c:181:1: note: declare 'static' if the function 
is not intended to be used outside of this translation unit
   void output_mm_defines(void)
   ^
   static 
   arch/mips/kernel/asm-offsets.c:220:6: warning: no previous prototype for 
function 'output_sc_defines' [-Wmissing-prototypes]
   void output_sc_defines(void)
^
   arch/mips/kernel/asm-offsets.c:220:1: note: declare 'static' if the function 
is not intended to be used outside of this translation unit
   void output_sc_defines(void)
   ^
   static 
   arch/mips/kernel/asm-offsets.c:255:6: warning: no previous prototype for 
function 'output_signal_defined' [-Wmissing-prototypes]
   void output_signal_defined(void)
^
   arch/mips/kernel/asm-offsets.c:255:1: note: declare 'static' if the function 
is not intended to be used outside of this translation unit
   void output_signal_defined(void)
   ^
   static 
   arch/mips/kernel/asm-offsets.c:348:6: warning: no previous prototype for 
function 'output_kvm_defines' [-Wmissing-prototypes]
   void output_kvm_defines(void)
^
   arch/mips/kernel/asm-offsets.c:348:1: note: declare 'static' if the function 
is not intended to be used outside of this translation unit
   void output_kvm_defines(void)
   ^
  

Re: [PATCH v10 32/81] KVM: introduce VM introspection

[kernel test robot]

Hi "Adalbert,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on dc924b062488a0376aae41d3e0a27dc99f852a5e]

url:
https://github.com/0day-ci/linux/commits/Adalbert-Laz-r/VM-introspection/20201125-174530
base:dc924b062488a0376aae41d3e0a27dc99f852a5e
config: powerpc64-randconfig-r006-20201125 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
77e98eaee2e8d4b9b297b66fda5b1e51e2a6)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install powerpc64 cross compiling tool for clang build
# apt-get install binutils-powerpc64-linux-gnu
# 
https://github.com/0day-ci/linux/commit/6ffa5da71155bd0bed0d68c52af248bda256d0f2
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Adalbert-Laz-r/VM-introspection/20201125-174530
git checkout 6ffa5da71155bd0bed0d68c52af248bda256d0f2
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross 
ARCH=powerpc64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

   In file included from include/linux/hardirq.h:10:
   In file included from arch/powerpc/include/asm/hardirq.h:6:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/powerpc/include/asm/io.h:604:
   arch/powerpc/include/asm/io-defs.h:45:1: warning: performing pointer 
arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   DEF_PCI_AC_NORET(insw, (unsigned long p, void *b, unsigned long c),
   ^~~
   arch/powerpc/include/asm/io.h:601:3: note: expanded from macro 
'DEF_PCI_AC_NORET'
   __do_##name al; \
   ^~
   :45:1: note: expanded from here
   __do_insw
   ^
   arch/powerpc/include/asm/io.h:542:56: note: expanded from macro '__do_insw'
   #define __do_insw(p, b, n)  readsw((PCI_IO_ADDR)_IO_BASE+(p), (b), (n))
  ~^
   In file included from arch/powerpc/kvm/../../../virt/kvm/kvm_main.c:18:
   In file included from include/linux/kvm_host.h:7:
   In file included from include/linux/hardirq.h:10:
   In file included from arch/powerpc/include/asm/hardirq.h:6:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/powerpc/include/asm/io.h:604:
   arch/powerpc/include/asm/io-defs.h:47:1: warning: performing pointer 
arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   DEF_PCI_AC_NORET(insl, (unsigned long p, void *b, unsigned long c),
   ^~~
   arch/powerpc/include/asm/io.h:601:3: note: expanded from macro 
'DEF_PCI_AC_NORET'
   __do_##name al; \
   ^~
   :47:1: note: expanded from here
   __do_insl
   ^
   arch/powerpc/include/asm/io.h:543:56: note: expanded from macro '__do_insl'
   #define __do_insl(p, b, n)  readsl((PCI_IO_ADDR)_IO_BASE+(p), (b), (n))
  ~^
   In file included from arch/powerpc/kvm/../../../virt/kvm/kvm_main.c:18:
   In file included from include/linux/kvm_host.h:7:
   In file included from include/linux/hardirq.h:10:
   In file included from arch/powerpc/include/asm/hardirq.h:6:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/powerpc/include/asm/io.h:604:
   arch/powerpc/include/asm/io-defs.h:49:1: warning: performing pointer 
arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
   DEF_PCI_AC_NORET(outsb, (unsigned long p, const void *b, unsigned long c),
   ^~
   arch/powerpc/include/asm/io.h:601:3: note: expanded from macro 
'DEF_PCI_AC_NORET'
   __do_##name al; \
   ^~
   :49:1: note: expanded from here
   __do_outsb
   ^
   arch/powerpc/include/asm/io.h:544:58: note: expanded from macro '__do_outsb'
   #define __do_outsb(p, b, n) writesb((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
   ~^
   In file included from arch/powerpc/kvm/../../../virt/kvm/kvm_main.c:18:
   In file included from include/linux/kvm_host.h:7:
   In file included from include/linux/hardirq.h:10:
   In file included from arch/powerpc/include/asm/hardirq.h:6:
   In file included from in

Re: [PATCH v10 32/81] KVM: introduce VM introspection

[kernel test robot]

Hi "Adalbert,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on dc924b062488a0376aae41d3e0a27dc99f852a5e]

url:
https://github.com/0day-ci/linux/commits/Adalbert-Laz-r/VM-introspection/20201125-174530
base:dc924b062488a0376aae41d3e0a27dc99f852a5e
config: mips-malta_kvm_defconfig (attached as .config)
compiler: mipsel-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# 
https://github.com/0day-ci/linux/commit/6ffa5da71155bd0bed0d68c52af248bda256d0f2
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Adalbert-Laz-r/VM-introspection/20201125-174530
git checkout 6ffa5da71155bd0bed0d68c52af248bda256d0f2
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=mips 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

   In file included from arch/mips/kvm/../../../virt/kvm/kvm_main.c:18:
   include/linux/kvm_host.h:925:14: warning: 'struct kvm_xsave' declared inside 
parameter list will not be visible outside of this definition or declaration
 925 |   struct kvm_xsave *guest_xsave);
 |  ^
   include/linux/kvm_host.h:927:13: warning: 'struct kvm_xsave' declared inside 
parameter list will not be visible outside of this definition or declaration
 927 |  struct kvm_xsave *guest_xsave);
 | ^
   arch/mips/kvm/../../../virt/kvm/kvm_main.c: In function 'kvm_create_vm':
>> arch/mips/kvm/../../../virt/kvm/kvm_main.c:806:6: error: 
>> 'enable_introspection' undeclared (first use in this function)
 806 |  if (enable_introspection)
 |  ^~~~
   arch/mips/kvm/../../../virt/kvm/kvm_main.c:806:6: note: each undeclared 
identifier is reported only once for each function it appears in
   arch/mips/kvm/../../../virt/kvm/kvm_main.c: In function 'kvm_destroy_vm':
   arch/mips/kvm/../../../virt/kvm/kvm_main.c:861:6: error: 
'enable_introspection' undeclared (first use in this function)
 861 |  if (enable_introspection)
 |  ^~~~
   arch/mips/kvm/../../../virt/kvm/kvm_main.c: In function 'kvm_init':
   arch/mips/kvm/../../../virt/kvm/kvm_main.c:5012:6: error: 
'enable_introspection' undeclared (first use in this function)
5012 |  if (enable_introspection) {
 |  ^~~~

vim +/enable_introspection +806 arch/mips/kvm/../../../virt/kvm/kvm_main.c

   797  
   798  r = kvm_init_mmu_notifier(kvm);
   799  if (r)
   800  goto out_err_no_mmu_notifier;
   801  
   802  r = kvm_arch_post_init_vm(kvm);
   803  if (r)
   804  goto out_err;
   805  
 > 806  if (enable_introspection)
   807  kvmi_create_vm(kvm);
   808  
   809  mutex_lock(_lock);
   810  list_add(>vm_list, _list);
   811  mutex_unlock(_lock);
   812  
   813  preempt_notifier_inc();
   814  
   815  return kvm;
   816  
   817  out_err:
   818  #if defined(CONFIG_MMU_NOTIFIER) && defined(KVM_ARCH_WANT_MMU_NOTIFIER)
   819  if (kvm->mmu_notifier.ops)
   820  mmu_notifier_unregister(>mmu_notifier, 
current->mm);
   821  #endif
   822  out_err_no_mmu_notifier:
   823  hardware_disable_all();
   824  out_err_no_disable:
   825  kvm_arch_destroy_vm(kvm);
   826  out_err_no_arch_destroy_vm:
   827  WARN_ON_ONCE(!refcount_dec_and_test(>users_count));
   828  for (i = 0; i < KVM_NR_BUSES; i++)
   829  kfree(kvm_get_bus(kvm, i));
   830  for (i = 0; i < KVM_ADDRESS_SPACE_NUM; i++)
   831  kvm_free_memslots(kvm, __kvm_memslots(kvm, i));
   832  cleanup_srcu_struct(>irq_srcu);
   833  out_err_no_irq_srcu:
   834  cleanup_srcu_struct(>srcu);
   835  out_err_no_srcu:
   836  kvm_arch_free_vm(kvm);
   837  mmdrop(current->mm);
   838  return ERR_PTR(r);
   839  }
   840  

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Re: [PATCH v3] drivers: gpio: add virtio-gpio guest driver

[kernel test robot]

Hi "Enrico,

I love your patch! Yet something to improve:

[auto build test ERROR on gpio/for-next]
[also build test ERROR on linux/master linus/master v5.10-rc7 next-20201207]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Enrico-Weigelt-metux-IT-consult/drivers-gpio-add-virtio-gpio-guest-driver/20201208-045646
base:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git 
for-next
config: h8300-randconfig-r032-20201207 (attached as .config)
compiler: h8300-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# 
https://github.com/0day-ci/linux/commit/fff1ac3789d850604f11c95b185116bea68e26a9
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Enrico-Weigelt-metux-IT-consult/drivers-gpio-add-virtio-gpio-guest-driver/20201208-045646
git checkout fff1ac3789d850604f11c95b185116bea68e26a9
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=h8300 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

>> drivers/i2c/Kconfig:8:error: recursive dependency detected!
   drivers/i2c/Kconfig:8: symbol I2C is selected by FB_DDC
   drivers/video/fbdev/Kconfig:63: symbol FB_DDC depends on FB
   drivers/video/fbdev/Kconfig:12: symbol FB is selected by DRM_KMS_FB_HELPER
   drivers/gpu/drm/Kconfig:80: symbol DRM_KMS_FB_HELPER depends on 
DRM_KMS_HELPER
   drivers/gpu/drm/Kconfig:74: symbol DRM_KMS_HELPER is selected by 
DRM_VIRTIO_GPU
   drivers/gpu/drm/virtio/Kconfig:2: symbol DRM_VIRTIO_GPU depends on VIRTIO
   drivers/virtio/Kconfig:2: symbol VIRTIO is selected by GPIO_VIRTIO
   drivers/gpio/Kconfig:1628: symbol GPIO_VIRTIO depends on GPIOLIB
   drivers/gpio/Kconfig:14: symbol GPIOLIB is selected by I2C_MUX_LTC4306
   drivers/i2c/muxes/Kconfig:47: symbol I2C_MUX_LTC4306 depends on I2C
   For a resolution refer to Documentation/kbuild/kconfig-language.rst
   subsection "Kconfig recursive dependency limitations"

vim +8 drivers/i2c/Kconfig

da3c6647ee0871 Lan Tianyu 2014-05-20   7  
da3c6647ee0871 Lan Tianyu 2014-05-20  @8  config I2C
^1da177e4c3f41 Linus Torvalds 2005-04-16   9tristate "I2C support"
194684e596af4b Mika Kuoppala  2009-12-06  10select RT_MUTEXES
4d5538f5882a6b Benjamin Tissoires 2016-10-13  11select IRQ_DOMAIN
a7f7f6248d9740 Masahiro Yamada2020-06-14  12help
622e040d577dc8 Michael Witten 2011-07-08  13  I2C (pronounce: 
I-squared-C) is a slow serial bus protocol used in
^1da177e4c3f41 Linus Torvalds 2005-04-16  14  many micro controller 
applications and developed by Philips.  SMBus,
^1da177e4c3f41 Linus Torvalds 2005-04-16  15  or System Management 
Bus is a subset of the I2C protocol.  More
^1da177e4c3f41 Linus Torvalds 2005-04-16  16  information is 
contained in the directory ,
^1da177e4c3f41 Linus Torvalds 2005-04-16  17  especially in the 
file called "summary" there.
^1da177e4c3f41 Linus Torvalds 2005-04-16  18  
^1da177e4c3f41 Linus Torvalds 2005-04-16  19  Both I2C and SMBus 
are supported here. You will need this for
^1da177e4c3f41 Linus Torvalds 2005-04-16  20  hardware sensors 
support, and also for Video For Linux support.
^1da177e4c3f41 Linus Torvalds 2005-04-16  21  
^1da177e4c3f41 Linus Torvalds 2005-04-16  22  If you want I2C 
support, you should say Y here and also to the
^1da177e4c3f41 Linus Torvalds 2005-04-16  23  specific driver for 
your bus adapter(s) below.
^1da177e4c3f41 Linus Torvalds 2005-04-16  24  
^1da177e4c3f41 Linus Torvalds 2005-04-16  25  This I2C support can 
also be built as a module.  If so, the module
^1da177e4c3f41 Linus Torvalds 2005-04-16  26  will be called 
i2c-core.
^1da177e4c3f41 Linus Torvalds 2005-04-16  27  

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Re: [PATCH v3] drivers: gpio: add virtio-gpio guest driver

[kernel test robot]

Hi "Enrico,

I love your patch! Yet something to improve:

[auto build test ERROR on gpio/for-next]
[also build test ERROR on linux/master linus/master v5.10-rc7 next-20201207]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Enrico-Weigelt-metux-IT-consult/drivers-gpio-add-virtio-gpio-guest-driver/20201208-045646
base:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git 
for-next
config: i386-randconfig-m021-20201207 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
# 
https://github.com/0day-ci/linux/commit/fff1ac3789d850604f11c95b185116bea68e26a9
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Enrico-Weigelt-metux-IT-consult/drivers-gpio-add-virtio-gpio-guest-driver/20201208-045646
git checkout fff1ac3789d850604f11c95b185116bea68e26a9
# save the attached .config to linux build tree
make W=1 ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/Kconfig:74:error: recursive dependency detected!
   drivers/gpu/drm/Kconfig:74: symbol DRM_KMS_HELPER is selected by 
DRM_VIRTIO_GPU
   drivers/gpu/drm/virtio/Kconfig:2: symbol DRM_VIRTIO_GPU depends on VIRTIO
   drivers/virtio/Kconfig:2: symbol VIRTIO is selected by GPIO_VIRTIO
   drivers/gpio/Kconfig:1628: symbol GPIO_VIRTIO depends on GPIOLIB
   drivers/gpio/Kconfig:14: symbol GPIOLIB is selected by I2C_MUX_LTC4306
   drivers/i2c/muxes/Kconfig:47: symbol I2C_MUX_LTC4306 depends on I2C
   drivers/i2c/Kconfig:8: symbol I2C is selected by FB_DDC
   drivers/video/fbdev/Kconfig:63: symbol FB_DDC depends on FB
   drivers/video/fbdev/Kconfig:12: symbol FB is selected by DRM_KMS_FB_HELPER
   drivers/gpu/drm/Kconfig:80: symbol DRM_KMS_FB_HELPER depends on 
DRM_KMS_HELPER
   For a resolution refer to Documentation/kbuild/kconfig-language.rst
   subsection "Kconfig recursive dependency limitations"

vim +74 drivers/gpu/drm/Kconfig

6fcefd56f5060c Dave Airlie   2009-09-08 @74  config DRM_KMS_HELPER
13a8195b148615 Dave Airlie   2009-09-07  75 tristate
13a8195b148615 Dave Airlie   2009-09-07  76 depends on DRM
92b6f89f6b85f4 Daniel Vetter 2013-10-08  77 help
92b6f89f6b85f4 Daniel Vetter 2013-10-08  78   CRTC helpers for KMS drivers.
92b6f89f6b85f4 Daniel Vetter 2013-10-08  79  

---
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Re: [PATCH v3 15/17] x86/hyperv: implement an MSI domain for root partition

[kernel test robot]

Hi Wei,

I love your patch! Perhaps something to improve:

[auto build test WARNING on tip/x86/core]
[also build test WARNING on asm-generic/master iommu/next tip/timers/core 
pci/next linus/master v5.10-rc5]
[cannot apply to next-20201124]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20201125-011026
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 
238c91115cd05c71447ea071624a4c9fe661f970
config: i386-randconfig-a015-20201124 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
# 
https://github.com/0day-ci/linux/commit/ae7533bcd9667c0f23b545d941d3c68460f91ea2
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20201125-011026
git checkout ae7533bcd9667c0f23b545d941d3c68460f91ea2
# save the attached .config to linux build tree
make W=1 ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   arch/x86/hyperv/irqdomain.c: In function 'hv_irq_compose_msi_msg':
   arch/x86/hyperv/irqdomain.c:146:8: error: implicit declaration of function 
'msi_desc_to_pci_dev'; did you mean 'msi_desc_to_dev'? 
[-Werror=implicit-function-declaration]
 146 |  dev = msi_desc_to_pci_dev(msidesc);
 |^~~
 |msi_desc_to_dev
>> arch/x86/hyperv/irqdomain.c:146:6: warning: assignment to 'struct pci_dev *' 
>> from 'int' makes pointer from integer without a cast [-Wint-conversion]
 146 |  dev = msi_desc_to_pci_dev(msidesc);
 |  ^
   arch/x86/hyperv/irqdomain.c: In function 'hv_msi_domain_free_irqs':
   arch/x86/hyperv/irqdomain.c:277:2: error: implicit declaration of function 
'for_each_pci_msi_entry'; did you mean 'for_each_msi_entry'? 
[-Werror=implicit-function-declaration]
 277 |  for_each_pci_msi_entry(entry, pdev) {
 |  ^~
 |  for_each_msi_entry
   arch/x86/hyperv/irqdomain.c:277:37: error: expected ';' before '{' token
 277 |  for_each_pci_msi_entry(entry, pdev) {
 | ^~
 | ;
   arch/x86/hyperv/irqdomain.c:268:6: warning: unused variable 'i' 
[-Wunused-variable]
 268 |  int i;
 |  ^
   arch/x86/hyperv/irqdomain.c: At top level:
   arch/x86/hyperv/irqdomain.c:298:22: error: 'msi_domain_set_affinity' 
undeclared here (not in a function); did you mean 'irq_can_set_affinity'?
 298 |  .irq_set_affinity = msi_domain_set_affinity,
 |  ^~~
 |  irq_can_set_affinity
   arch/x86/hyperv/irqdomain.c:302:15: error: variable 'pci_msi_domain_ops' has 
initializer but incomplete type
 302 | static struct msi_domain_ops pci_msi_domain_ops = {
 |   ^~
   arch/x86/hyperv/irqdomain.c:303:3: error: 'struct msi_domain_ops' has no 
member named 'domain_free_irqs'
 303 |  .domain_free_irqs = hv_msi_domain_free_irqs,
 |   ^~~~
>> arch/x86/hyperv/irqdomain.c:303:22: warning: excess elements in struct 
>> initializer
 303 |  .domain_free_irqs = hv_msi_domain_free_irqs,
 |  ^~~
   arch/x86/hyperv/irqdomain.c:303:22: note: (near initialization for 
'pci_msi_domain_ops')
   arch/x86/hyperv/irqdomain.c:304:3: error: 'struct msi_domain_ops' has no 
member named 'msi_prepare'
 304 |  .msi_prepare  = pci_msi_prepare,
 |   ^~~
   arch/x86/hyperv/irqdomain.c:304:18: error: 'pci_msi_prepare' undeclared here 
(not in a function)
 304 |  .msi_prepare  = pci_msi_prepare,
 |  ^~~
   arch/x86/hyperv/irqdomain.c:304:18: warning: excess elements in struct 
initializer
   arch/x86/hyperv/irqdomain.c:304:18: note: (near initialization for 
'pci_msi_domain_ops')
   arch/x86/hyperv/irqdomain.c:307:15: error: variable 'hv_pci_msi_domain_info' 
has initializer but incomplete type
 307 | static struct msi_domain_info hv_pci_msi_domain_info = {
 |   ^~~
   arch/x86/hyperv/irqdomain.c:308:3: error: 'struct msi_domain_info' has no 
member named 'flags'
 308 |  .flags  = MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
 |   ^
   arch/x86/hyperv/irqdomain.c:308:12: error: 'MSI_FLAG_USE_DEF_DOM_OPS' 
undeclared here (not in a function)
 308 |  .flags  = MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
 |^~~~
   arch

Re: [PATCH v3 15/17] x86/hyperv: implement an MSI domain for root partition

[kernel test robot]

Hi Wei,

I love your patch! Perhaps something to improve:

[auto build test WARNING on tip/x86/core]
[also build test WARNING on asm-generic/master iommu/next tip/timers/core 
pci/next linus/master v5.10-rc5]
[cannot apply to next-20201124]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20201125-011026
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 
238c91115cd05c71447ea071624a4c9fe661f970
config: x86_64-randconfig-a003-20201125 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
77e98eaee2e8d4b9b297b66fda5b1e51e2a6)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# 
https://github.com/0day-ci/linux/commit/ae7533bcd9667c0f23b545d941d3c68460f91ea2
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20201125-011026
git checkout ae7533bcd9667c0f23b545d941d3c68460f91ea2
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   arch/x86/hyperv/irqdomain.c:303:3: error: field designator 
'domain_free_irqs' does not refer to any field in type 'struct msi_domain_ops'
   .domain_free_irqs   = hv_msi_domain_free_irqs,
^
>> arch/x86/hyperv/irqdomain.c:316:28: warning: no previous prototype for 
>> function 'hv_create_pci_msi_domain' [-Wmissing-prototypes]
   struct irq_domain * __init hv_create_pci_msi_domain(void)
  ^
   arch/x86/hyperv/irqdomain.c:316:1: note: declare 'static' if the function is 
not intended to be used outside of this translation unit
   struct irq_domain * __init hv_create_pci_msi_domain(void)
   ^
   static 
   1 warning and 1 error generated.

vim +/hv_create_pci_msi_domain +316 arch/x86/hyperv/irqdomain.c

   301  
   302  static struct msi_domain_ops pci_msi_domain_ops = {
 > 303  .domain_free_irqs   = hv_msi_domain_free_irqs,
   304  .msi_prepare= pci_msi_prepare,
   305  };
   306  
   307  static struct msi_domain_info hv_pci_msi_domain_info = {
   308  .flags  = MSI_FLAG_USE_DEF_DOM_OPS | 
MSI_FLAG_USE_DEF_CHIP_OPS |
   309MSI_FLAG_PCI_MSIX,
   310  .ops= _msi_domain_ops,
   311  .chip   = _pci_msi_controller,
   312  .handler= handle_edge_irq,
   313  .handler_name   = "edge",
   314  };
   315  
 > 316  struct irq_domain * __init hv_create_pci_msi_domain(void)
   317  {
   318  struct irq_domain *d = NULL;
   319  struct fwnode_handle *fn;
   320  
   321  fn = irq_domain_alloc_named_fwnode("HV-PCI-MSI");
   322  if (fn)
   323  d = pci_msi_create_irq_domain(fn, 
_pci_msi_domain_info, x86_vector_domain);
   324  
   325  /* No point in going further if we can't get an irq domain */
   326  BUG_ON(!d);
   327  
   328  return d;
   329  }
   330  

---
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Re: [PATCH v3 17/17] x86/hyperv: handle IO-APIC when running as root

[kernel test robot]

Hi Wei,

I love your patch! Perhaps something to improve:

[auto build test WARNING on tip/x86/core]
[also build test WARNING on asm-generic/master iommu/next tip/timers/core 
pci/next linus/master v5.10-rc5]
[cannot apply to next-20201124]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20201125-011026
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 
238c91115cd05c71447ea071624a4c9fe661f970
config: x86_64-randconfig-a003-20201125 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
77e98eaee2e8d4b9b297b66fda5b1e51e2a6)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# 
https://github.com/0day-ci/linux/commit/591ad2444b6b7d63ab24ce8f16a4e367085bbb5d
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20201125-011026
git checkout 591ad2444b6b7d63ab24ce8f16a4e367085bbb5d
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   arch/x86/hyperv/irqdomain.c:305:3: error: field designator 
'domain_free_irqs' does not refer to any field in type 'struct msi_domain_ops'
   .domain_free_irqs   = hv_msi_domain_free_irqs,
^
   arch/x86/hyperv/irqdomain.c:318:28: warning: no previous prototype for 
function 'hv_create_pci_msi_domain' [-Wmissing-prototypes]
   struct irq_domain * __init hv_create_pci_msi_domain(void)
  ^
   arch/x86/hyperv/irqdomain.c:318:1: note: declare 'static' if the function is 
not intended to be used outside of this translation unit
   struct irq_domain * __init hv_create_pci_msi_domain(void)
   ^
   static 
>> arch/x86/hyperv/irqdomain.c:499:6: warning: no previous prototype for 
>> function 'hv_ioapic_ack_level' [-Wmissing-prototypes]
   void hv_ioapic_ack_level(struct irq_data *irq_data)
^
   arch/x86/hyperv/irqdomain.c:499:1: note: declare 'static' if the function is 
not intended to be used outside of this translation unit
   void hv_ioapic_ack_level(struct irq_data *irq_data)
   ^
   static 
>> arch/x86/hyperv/irqdomain.c:526:5: warning: no previous prototype for 
>> function 'hv_acpi_register_gsi' [-Wmissing-prototypes]
   int hv_acpi_register_gsi(struct device *dev, u32 gsi, int trigger, int 
polarity)
   ^
   arch/x86/hyperv/irqdomain.c:526:1: note: declare 'static' if the function is 
not intended to be used outside of this translation unit
   int hv_acpi_register_gsi(struct device *dev, u32 gsi, int trigger, int 
polarity)
   ^
   static 
>> arch/x86/hyperv/irqdomain.c:550:6: warning: no previous prototype for 
>> function 'hv_acpi_unregister_gsi' [-Wmissing-prototypes]
   void hv_acpi_unregister_gsi(u32 gsi)
^
   arch/x86/hyperv/irqdomain.c:550:1: note: declare 'static' if the function is 
not intended to be used outside of this translation unit
   void hv_acpi_unregister_gsi(u32 gsi)
   ^
   static 
   4 warnings and 1 error generated.

vim +/hv_ioapic_ack_level +499 arch/x86/hyperv/irqdomain.c

   498  
 > 499  void hv_ioapic_ack_level(struct irq_data *irq_data)
   500  {
   501  /*
   502   * Per email exchange with Hyper-V team, all is needed is write 
to
   503   * LAPIC's EOI register. They don't support directed EOI to 
IO-APIC.
   504   * Hyper-V handles it for us.
   505   */
   506  apic_ack_irq(irq_data);
   507  }
   508  
   509  struct irq_chip hv_ioapic_chip __read_mostly = {
   510  .name   = "HV-IO-APIC",
   511  .irq_startup= hv_ioapic_startup_irq,
   512  .irq_mask   = hv_ioapic_mask_irq,
   513  .irq_unmask = hv_ioapic_unmask_irq,
   514  .irq_ack= irq_chip_ack_parent,
   515  .irq_eoi= hv_ioapic_ack_level,
   516  .irq_set_affinity   = hv_ioapic_set_affinity,
   517  .irq_retrigger  = irq_chip_retrigger_hierarchy,
   518  .irq_get_irqchip_state  = ioapic_irq_get_chip_state,
   519  .flags  = IRQCHIP_SKIP_SET_WAKE,
   520  };
   521  
   522  
   523  int (*native_acpi_register_gsi)(

Re: [PATCH v3 14/15] x86/paravirt: switch functions with custom code to ALTERNATIVE

[kernel test robot]

Hi Juergen,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[cannot apply to xen-tip/linux-next tip/x86/core tip/x86/asm v5.10 
next-20201217]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Juergen-Gross/x86-major-paravirt-cleanup/20201217-173646
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
accefff5b547a9a1d959c7e76ad539bf2480e78b
config: x86_64-randconfig-a002-20201217 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
# 
https://github.com/0day-ci/linux/commit/bc3cbe0ff1b123a4b7f48c91b32198d7dfe57797
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Juergen-Gross/x86-major-paravirt-cleanup/20201217-173646
git checkout bc3cbe0ff1b123a4b7f48c91b32198d7dfe57797
# save the attached .config to linux build tree
make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All error/warnings (new ones prefixed by >>):

   arch/x86/entry/entry_64.S: Assembler messages:
>> arch/x86/entry/entry_64.S:1092: Error: junk at end of line, first 
>> unrecognized character is `('
>> arch/x86/entry/entry_64.S:1092: Error: backward ref to unknown label "771:"
>> arch/x86/entry/entry_64.S:1092: Error: backward ref to unknown label "771:"
>> arch/x86/entry/entry_64.S:1092: Error: junk at end of line, first 
>> unrecognized character is `,'
>> arch/x86/entry/entry_64.S:1092: Warning: missing closing '"'
>> arch/x86/entry/entry_64.S:1092: Error: expecting mnemonic; got nothing


vim +1092 arch/x86/entry/entry_64.S

ddeb8f2149de280 arch/x86/kernel/entry_64.S Alexander van Heukelum 2008-11-24  
1089  
424c7d0a9a396ba arch/x86/entry/entry_64.S  Thomas Gleixner2020-03-26  
1090  SYM_CODE_START_LOCAL(error_return)
424c7d0a9a396ba arch/x86/entry/entry_64.S  Thomas Gleixner2020-03-26  
1091  UNWIND_HINT_REGS
424c7d0a9a396ba arch/x86/entry/entry_64.S  Thomas Gleixner2020-03-26 
@1092  DEBUG_ENTRY_ASSERT_IRQS_OFF
424c7d0a9a396ba arch/x86/entry/entry_64.S  Thomas Gleixner2020-03-26  
1093  testb   $3, CS(%rsp)
424c7d0a9a396ba arch/x86/entry/entry_64.S  Thomas Gleixner2020-03-26  
1094  jz  restore_regs_and_return_to_kernel
424c7d0a9a396ba arch/x86/entry/entry_64.S  Thomas Gleixner2020-03-26  
1095  jmp swapgs_restore_regs_and_return_to_usermode
424c7d0a9a396ba arch/x86/entry/entry_64.S  Thomas Gleixner2020-03-26  
1096  SYM_CODE_END(error_return)
424c7d0a9a396ba arch/x86/entry/entry_64.S  Thomas Gleixner2020-03-26  
1097  

---
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Re: [PATCH v3 10/15] x86/paravirt: simplify paravirt macros

[kernel test robot]

Hi Juergen,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.10]
[cannot apply to xen-tip/linux-next tip/x86/core tip/x86/asm next-20201217]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Juergen-Gross/x86-major-paravirt-cleanup/20201217-173646
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
accefff5b547a9a1d959c7e76ad539bf2480e78b
config: x86_64-randconfig-a016-20201217 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
cee1e7d14f4628d6174b33640d502bff3b54ae45)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# 
https://github.com/0day-ci/linux/commit/0d13a33e925f799d8487bcc597e2dc016d1fdd16
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Juergen-Gross/x86-major-paravirt-cleanup/20201217-173646
git checkout 0d13a33e925f799d8487bcc597e2dc016d1fdd16
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   In file included from arch/x86/kernel/asm-offsets.c:13:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:22:
   In file included from include/linux/writeback.h:14:
   In file included from include/linux/blk-cgroup.h:23:
   In file included from include/linux/blkdev.h:26:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/x86/include/asm/io.h:244:
>> arch/x86/include/asm/paravirt.h:44:2: warning: variable '__eax' is 
>> uninitialized when used within its own initialization [-Wuninitialized]
   PVOP_VCALL0(mmu.flush_tlb_user);
   ^~~
   arch/x86/include/asm/paravirt_types.h:504:2: note: expanded from macro 
'PVOP_VCALL0'
   __PVOP_VCALL(op)
   ^~~~
   arch/x86/include/asm/paravirt_types.h:492:8: note: expanded from macro 
'__PVOP_VCALL'
   (void)PVOP_CALL(long, op, CLBR_ANY, PVOP_VCALL_CLOBBERS,\
 ^~~
   arch/x86/include/asm/paravirt_types.h:471:3: note: expanded from macro 
'PVOP_CALL'
   PVOP_CALL_ARGS; \
   ^~
   arch/x86/include/asm/paravirt_types.h:431:41: note: expanded from macro 
'PVOP_CALL_ARGS'
   __edx = __edx, __ecx = __ecx, __eax = __eax;
 ~   ^
   In file included from arch/x86/kernel/asm-offsets.c:13:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:22:
   In file included from include/linux/writeback.h:14:
   In file included from include/linux/blk-cgroup.h:23:
   In file included from include/linux/blkdev.h:26:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/x86/include/asm/io.h:244:
   arch/x86/include/asm/paravirt.h:49:2: warning: variable '__eax' is 
uninitialized when used within its own initialization [-Wuninitialized]
   PVOP_VCALL0(mmu.flush_tlb_kernel);
   ^
   arch/x86/include/asm/paravirt_types.h:504:2: note: expanded from macro 
'PVOP_VCALL0'
   __PVOP_VCALL(op)
   ^~~~
   arch/x86/include/asm/paravirt_types.h:492:8: note: expanded from macro 
'__PVOP_VCALL'
   (void)PVOP_CALL(long, op, CLBR_ANY, PVOP_VCALL_CLOBBERS,\
 ^~~
   arch/x86/include/asm/paravirt_types.h:471:3: note: expanded from macro 
'PVOP_CALL'
   PVOP_CALL_ARGS; \
   ^~
   arch/x86/include/asm/paravirt_types.h:431:41: note: expanded from macro 
'PVOP_CALL_ARGS'
   __edx = __edx, __ecx = __ecx, __eax = __eax;
 ~   ^
   In file included from arch/x86/kernel/asm-offsets.c:13:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:22:
   In 

Re: [PATCH 21/21] vdpasim: control virtqueue support

[kernel test robot]

Hi Jason,

I love your patch! Perhaps something to improve:

[auto build test WARNING on vhost/linux-next]
[also build test WARNING on linus/master v5.10]
[cannot apply to next-20201217]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Jason-Wang/Control-VQ-support-in-vDPA/20201216-150025
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
config: x86_64-randconfig-a014-20201217 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
cee1e7d14f4628d6174b33640d502bff3b54ae45)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# 
https://github.com/0day-ci/linux/commit/157796e1c075942914d2096899f4a9b7cf824373
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Jason-Wang/Control-VQ-support-in-vDPA/20201216-150025
git checkout 157796e1c075942914d2096899f4a9b7cf824373
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

>> drivers/vdpa/vdpa_sim/vdpa_sim.c:204:21: warning: no previous prototype for 
>> function 'vdpasim_handle_ctrl_mac' [-Wmissing-prototypes]
   virtio_net_ctrl_ack vdpasim_handle_ctrl_mac(struct vdpasim *vdpasim,
   ^
   drivers/vdpa/vdpa_sim/vdpa_sim.c:204:1: note: declare 'static' if the 
function is not intended to be used outside of this translation unit
   virtio_net_ctrl_ack vdpasim_handle_ctrl_mac(struct vdpasim *vdpasim,
   ^
   static 
>> drivers/vdpa/vdpa_sim/vdpa_sim.c:731:5: warning: no previous prototype for 
>> function 'vdpasim_set_group_asid' [-Wmissing-prototypes]
   int vdpasim_set_group_asid(struct vdpa_device *vdpa, unsigned int group,
   ^
   drivers/vdpa/vdpa_sim/vdpa_sim.c:731:1: note: declare 'static' if the 
function is not intended to be used outside of this translation unit
   int vdpasim_set_group_asid(struct vdpa_device *vdpa, unsigned int group,
   ^
   static 
   drivers/vdpa/vdpa_sim/vdpa_sim.c:101:19: warning: unused function 
'vdpasim16_to_cpu' [-Wunused-function]
   static inline u16 vdpasim16_to_cpu(struct vdpasim *vdpasim, __virtio16 val)
 ^
   3 warnings generated.


vim +/vdpasim_handle_ctrl_mac +204 drivers/vdpa/vdpa_sim/vdpa_sim.c

   203  
 > 204  virtio_net_ctrl_ack vdpasim_handle_ctrl_mac(struct vdpasim *vdpasim,
   205  u8 cmd)
   206  {
   207  struct vdpasim_virtqueue *cvq = >vqs[2];
   208  virtio_net_ctrl_ack status = VIRTIO_NET_ERR;
   209  size_t read;
   210  
   211  switch (cmd) {
   212  case VIRTIO_NET_CTRL_MAC_ADDR_SET:
   213  read = vringh_iov_pull_iotlb(>vring, >in_iov,
   214   (void 
*)vdpasim->config.mac,
   215   ETH_ALEN);
   216  if (read == ETH_ALEN)
   217  status = VIRTIO_NET_OK;
   218  break;
   219  default:
   220  break;
   221  }
   222  
   223  return status;
   224  }
   225  

---
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Re: [PATCH v2 12/12] x86/paravirt: have only one paravirt patch function

[kernel test robot]

Hi Juergen,

I love your patch! Perhaps something to improve:

[auto build test WARNING on v5.10-rc4]
[also build test WARNING on next-20201120]
[cannot apply to tip/x86/core xen-tip/linux-next tip/x86/asm]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Juergen-Gross/x86-major-paravirt-cleanup/20201120-194934
base:09162bc32c880a791c6c0668ce0745cf7958f576
config: x86_64-randconfig-r014-20201120 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
3ded927cf80ac519f9f9c4664fef08787f7c537d)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# 
https://github.com/0day-ci/linux/commit/340df5e02c66ec37486a1f31e6497a22dab65059
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Juergen-Gross/x86-major-paravirt-cleanup/20201120-194934
git checkout 340df5e02c66ec37486a1f31e6497a22dab65059
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

>> arch/x86/kernel/paravirt.c:124:10: warning: no previous prototype for 
>> function 'paravirt_patch_insns' [-Wmissing-prototypes]
   unsigned paravirt_patch_insns(void *insn_buff, unsigned len,
^
   arch/x86/kernel/paravirt.c:124:1: note: declare 'static' if the function is 
not intended to be used outside of this translation unit
   unsigned paravirt_patch_insns(void *insn_buff, unsigned len,
   ^
   static 
   1 warning generated.

vim +/paravirt_patch_insns +124 arch/x86/kernel/paravirt.c

63f70270ccd981c arch/i386/kernel/paravirt.c Jeremy Fitzhardinge 2007-05-02  123 
 
1fc654cf6e04b40 arch/x86/kernel/paravirt.c  Ingo Molnar 2019-04-25 @124 
 unsigned paravirt_patch_insns(void *insn_buff, unsigned len,
63f70270ccd981c arch/i386/kernel/paravirt.c Jeremy Fitzhardinge 2007-05-02  125 
  const char *start, const char *end)
63f70270ccd981c arch/i386/kernel/paravirt.c Jeremy Fitzhardinge 2007-05-02  126 
 {
63f70270ccd981c arch/i386/kernel/paravirt.c Jeremy Fitzhardinge 2007-05-02  127 
unsigned insn_len = end - start;
63f70270ccd981c arch/i386/kernel/paravirt.c Jeremy Fitzhardinge 2007-05-02  128 
 
2777cae2b19d4a0 arch/x86/kernel/paravirt.c  Ingo Molnar 2019-04-25  129 
/* Alternative instruction is too large for the patch site and we 
cannot continue: */
2777cae2b19d4a0 arch/x86/kernel/paravirt.c  Ingo Molnar 2019-04-25  130 
BUG_ON(insn_len > len || start == NULL);
2777cae2b19d4a0 arch/x86/kernel/paravirt.c  Ingo Molnar 2019-04-25  131 
 
1fc654cf6e04b40 arch/x86/kernel/paravirt.c  Ingo Molnar 2019-04-25  132 
memcpy(insn_buff, start, insn_len);
139ec7c416248b9 arch/i386/kernel/paravirt.c Rusty Russell   2006-12-07  133 
 
139ec7c416248b9 arch/i386/kernel/paravirt.c Rusty Russell   2006-12-07  134 
return insn_len;
139ec7c416248b9 arch/i386/kernel/paravirt.c Rusty Russell   2006-12-07  135 
 }
139ec7c416248b9 arch/i386/kernel/paravirt.c Rusty Russell   2006-12-07  136 
 

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Re: [PATCH v2 11/12] x86/paravirt: switch functions with custom code to ALTERNATIVE

[kernel test robot]

Hi Juergen,

I love your patch! Perhaps something to improve:

[auto build test WARNING on v5.10-rc4]
[also build test WARNING on next-20201120]
[cannot apply to tip/x86/core xen-tip/linux-next tip/x86/asm]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Juergen-Gross/x86-major-paravirt-cleanup/20201120-194934
base:09162bc32c880a791c6c0668ce0745cf7958f576
config: x86_64-rhel-7.6-kselftests (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
# 
https://github.com/0day-ci/linux/commit/fd8d46a7a2c51313ee14c43af60ff337279384ef
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Juergen-Gross/x86-major-paravirt-cleanup/20201120-194934
git checkout fd8d46a7a2c51313ee14c43af60ff337279384ef
# save the attached .config to linux build tree
make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

>> drivers/misc/lkdtm/bugs.o: warning: objtool: .altinstr_replacement+0x0: 
>> alternative modifies stack

---
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Re: [PATCH 3/3] drm/qxl: Remove fbcon acceleration leftovers

[kernel test robot]

Hi Daniel,

I love your patch! Perhaps something to improve:

[auto build test WARNING on drm-intel/for-linux-next]
[also build test WARNING on drm-exynos/exynos-drm-next 
tegra-drm/drm/tegra/for-next linus/master drm/drm-next v5.10-rc1 next-20201028]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Daniel-Vetter/fbcon-Disable-accelerated-scrolling/20201029-181618
base:   git://anongit.freedesktop.org/drm-intel for-linux-next
config: alpha-randconfig-r003-20201029 (attached as .config)
compiler: alpha-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# 
https://github.com/0day-ci/linux/commit/188b22d2b66860695df5d07bf2b7115976790b2c
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Daniel-Vetter/fbcon-Disable-accelerated-scrolling/20201029-181618
git checkout 188b22d2b66860695df5d07bf2b7115976790b2c
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=alpha 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   In file included from drivers/gpu/drm/qxl/qxl_drv.c:31:
>> drivers/gpu/drm/qxl/qxl_drv.h:178:35: warning: 'struct qxl_device' declared 
>> inside parameter list will not be visible outside of this definition or 
>> declaration
 178 | int qxl_debugfs_fence_init(struct qxl_device *rdev);
 |   ^~

vim +178 drivers/gpu/drm/qxl/qxl_drv.h

f64122c1f6ade30 Dave Airlie 2013-02-25  177  
f64122c1f6ade30 Dave Airlie 2013-02-25 @178  int qxl_debugfs_fence_init(struct 
qxl_device *rdev);
f64122c1f6ade30 Dave Airlie 2013-02-25  179  

---
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Re: [PATCH v2 02/17] x86/hyperv: detect if Linux is the root partition

[kernel test robot]

Hi Wei,

I love your patch! Yet something to improve:

[auto build test ERROR on tip/x86/core]
[also build test ERROR on asm-generic/master iommu/next tip/timers/core 
pci/next linus/master v5.10-rc2 next-20201105]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20201106-010058
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 
238c91115cd05c71447ea071624a4c9fe661f970
config: x86_64-randconfig-m001-20201104 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
# 
https://github.com/0day-ci/linux/commit/3984ce0be67e74b8945288f1751a91615459f75e
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20201106-010058
git checkout 3984ce0be67e74b8945288f1751a91615459f75e
# save the attached .config to linux build tree
make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

   arch/x86/kernel/cpu/mshyperv.c: In function 'ms_hyperv_init_platform':
>> arch/x86/kernel/cpu/mshyperv.c:247:3: error: 'hv_root_partition' undeclared 
>> (first use in this function); did you mean 'blk_drop_partitions'?
 247 |   hv_root_partition = true;
 |   ^
 |   blk_drop_partitions
   arch/x86/kernel/cpu/mshyperv.c:247:3: note: each undeclared identifier is 
reported only once for each function it appears in

vim +247 arch/x86/kernel/cpu/mshyperv.c

   218  
   219  /*
   220   * Extract the features and hints
   221   */
   222  ms_hyperv.features = cpuid_eax(HYPERV_CPUID_FEATURES);
   223  ms_hyperv.misc_features = cpuid_edx(HYPERV_CPUID_FEATURES);
   224  ms_hyperv.hints= cpuid_eax(HYPERV_CPUID_ENLIGHTMENT_INFO);
   225  
   226  pr_info("Hyper-V: features 0x%x, hints 0x%x, misc 0x%x\n",
   227  ms_hyperv.features, ms_hyperv.hints, 
ms_hyperv.misc_features);
   228  
   229  ms_hyperv.max_vp_index = 
cpuid_eax(HYPERV_CPUID_IMPLEMENT_LIMITS);
   230  ms_hyperv.max_lp_index = 
cpuid_ebx(HYPERV_CPUID_IMPLEMENT_LIMITS);
   231  
   232  pr_debug("Hyper-V: max %u virtual processors, %u logical 
processors\n",
   233   ms_hyperv.max_vp_index, ms_hyperv.max_lp_index);
   234  
   235  /*
   236   * Check CPU management privilege.
   237   *
   238   * To mirror what Windows does we should extract CPU management
   239   * features and use the ReservedIdentityBit to detect if Linux 
is the
   240   * root partition. But that requires negotiating CPU management
   241   * interface (a process to be finalized).
   242   *
   243   * For now, use the privilege flag as the indicator for running 
as
   244   * root.
   245   */
   246  if (cpuid_ebx(HYPERV_CPUID_FEATURES) & HV_CPU_MANAGEMENT) {
 > 247  hv_root_partition = true;
   248  pr_info("Hyper-V: running as root partition\n");
   249  }
   250  
   251  /*
   252   * Extract host information.
   253   */
   254  if (cpuid_eax(HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS) >=
   255  HYPERV_CPUID_VERSION) {
   256  hv_host_info_eax = cpuid_eax(HYPERV_CPUID_VERSION);
   257  hv_host_info_ebx = cpuid_ebx(HYPERV_CPUID_VERSION);
   258  hv_host_info_ecx = cpuid_ecx(HYPERV_CPUID_VERSION);
   259  hv_host_info_edx = cpuid_edx(HYPERV_CPUID_VERSION);
   260  
   261  pr_info("Hyper-V Host Build:%d-%d.%d-%d-%d.%d\n",
   262  hv_host_info_eax, hv_host_info_ebx >> 16,
   263  hv_host_info_ebx & 0x, hv_host_info_ecx,
   264  hv_host_info_edx >> 24, hv_host_info_edx & 
0xFF);
   265  }
   266  
   267  if (ms_hyperv.features & HV_X64_ACCESS_FREQUENCY_MSRS &&
   268  ms_hyperv.misc_features & 
HV_FEATURE_FREQUENCY_MSRS_AVAILABLE) {
   269  x86_platform.calibrate_tsc = hv_get_tsc_khz;
   270  x86_platform.calibrate_cpu = hv_get_tsc_khz;
   271  }
   272  
   273  if (ms_hyperv.hints & HV_X64_ENLIGHTENED_VMCS_RECOMMENDED) {
   274  ms_hyperv.nested_features =
   275  cpuid_eax(HYPERV_CPUID_NESTED_FEATURES);
   276  }
 

Re: [PATCH v2 07/17] x86/hyperv: extract partition ID from Microsoft Hypervisor if necessary

[kernel test robot]

Hi Wei,

I love your patch! Perhaps something to improve:

[auto build test WARNING on tip/x86/core]
[also build test WARNING on asm-generic/master iommu/next tip/timers/core 
pci/next linus/master v5.10-rc2 next-20201105]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20201106-010058
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 
238c91115cd05c71447ea071624a4c9fe661f970
config: i386-randconfig-r002-20201104 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
# 
https://github.com/0day-ci/linux/commit/83c03b4e30e729a77688b8c0ffeffa2a555dcce7
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20201106-010058
git checkout 83c03b4e30e729a77688b8c0ffeffa2a555dcce7
# save the attached .config to linux build tree
make W=1 ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

>> arch/x86/hyperv/hv_init.c:341:13: warning: no previous prototype for 
>> 'hv_get_partition_id' [-Wmissing-prototypes]
 341 | void __init hv_get_partition_id(void)
 | ^~~

vim +/hv_get_partition_id +341 arch/x86/hyperv/hv_init.c

   340  
 > 341  void __init hv_get_partition_id(void)
   342  {
   343  struct hv_get_partition_id *output_page;
   344  u16 status;
   345  unsigned long flags;
   346  
   347  local_irq_save(flags);
   348  output_page = *this_cpu_ptr(hyperv_pcpu_output_arg);
   349  status = hv_do_hypercall(HVCALL_GET_PARTITION_ID, NULL, 
output_page) &
   350  HV_HYPERCALL_RESULT_MASK;
   351  if (status != HV_STATUS_SUCCESS)
   352  pr_err("Failed to get partition ID: %d\n", status);
   353  else
   354  hv_current_partition_id = output_page->partition_id;
   355  local_irq_restore(flags);
   356  
   357  /* No point in proceeding if this failed */
   358  BUG_ON(status != HV_STATUS_SUCCESS);
   359  }
   360  

---
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Re: [PATCH v2 07/17] x86/hyperv: extract partition ID from Microsoft Hypervisor if necessary

[kernel test robot]

Hi Wei,

I love your patch! Perhaps something to improve:

[auto build test WARNING on tip/x86/core]
[also build test WARNING on asm-generic/master iommu/next tip/timers/core 
pci/next linus/master v5.10-rc2 next-20201105]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20201106-010058
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 
238c91115cd05c71447ea071624a4c9fe661f970
config: x86_64-randconfig-s021-20201105 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.3-76-gf680124b-dirty
# 
https://github.com/0day-ci/linux/commit/83c03b4e30e729a77688b8c0ffeffa2a555dcce7
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20201106-010058
git checkout 83c03b4e30e729a77688b8c0ffeffa2a555dcce7
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

>> arch/x86/hyperv/hv_init.c:341:13: warning: no previous prototype for 
>> 'hv_get_partition_id' [-Wmissing-prototypes]
 341 | void __init hv_get_partition_id(void)
 | ^~~

vim +/hv_get_partition_id +341 arch/x86/hyperv/hv_init.c

   340  
 > 341  void __init hv_get_partition_id(void)
   342  {
   343  struct hv_get_partition_id *output_page;
   344  u16 status;
   345  unsigned long flags;
   346  
   347  local_irq_save(flags);
   348  output_page = *this_cpu_ptr(hyperv_pcpu_output_arg);
   349  status = hv_do_hypercall(HVCALL_GET_PARTITION_ID, NULL, 
output_page) &
   350  HV_HYPERCALL_RESULT_MASK;
   351  if (status != HV_STATUS_SUCCESS)
   352  pr_err("Failed to get partition ID: %d\n", status);
   353  else
   354  hv_current_partition_id = output_page->partition_id;
   355  local_irq_restore(flags);
   356  
   357  /* No point in proceeding if this failed */
   358  BUG_ON(status != HV_STATUS_SUCCESS);
   359  }
   360  

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Re: [PATCH v2 02/17] x86/hyperv: detect if Linux is the root partition

[kernel test robot]

Hi Wei,

I love your patch! Yet something to improve:

[auto build test ERROR on tip/x86/core]
[also build test ERROR on asm-generic/master iommu/next tip/timers/core 
pci/next linus/master v5.10-rc2 next-20201105]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20201106-010058
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 
238c91115cd05c71447ea071624a4c9fe661f970
config: x86_64-randconfig-a004-20201104 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
09ec07827b1128504457a93dee80b2ceee1af600)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# 
https://github.com/0day-ci/linux/commit/3984ce0be67e74b8945288f1751a91615459f75e
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20201106-010058
git checkout 3984ce0be67e74b8945288f1751a91615459f75e
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

>> arch/x86/kernel/cpu/mshyperv.c:247:3: error: use of undeclared identifier 
>> 'hv_root_partition'
   hv_root_partition = true;
   ^
   1 error generated.

vim +/hv_root_partition +247 arch/x86/kernel/cpu/mshyperv.c

   218  
   219  /*
   220   * Extract the features and hints
   221   */
   222  ms_hyperv.features = cpuid_eax(HYPERV_CPUID_FEATURES);
   223  ms_hyperv.misc_features = cpuid_edx(HYPERV_CPUID_FEATURES);
   224  ms_hyperv.hints= cpuid_eax(HYPERV_CPUID_ENLIGHTMENT_INFO);
   225  
   226  pr_info("Hyper-V: features 0x%x, hints 0x%x, misc 0x%x\n",
   227  ms_hyperv.features, ms_hyperv.hints, 
ms_hyperv.misc_features);
   228  
   229  ms_hyperv.max_vp_index = 
cpuid_eax(HYPERV_CPUID_IMPLEMENT_LIMITS);
   230  ms_hyperv.max_lp_index = 
cpuid_ebx(HYPERV_CPUID_IMPLEMENT_LIMITS);
   231  
   232  pr_debug("Hyper-V: max %u virtual processors, %u logical 
processors\n",
   233   ms_hyperv.max_vp_index, ms_hyperv.max_lp_index);
   234  
   235  /*
   236   * Check CPU management privilege.
   237   *
   238   * To mirror what Windows does we should extract CPU management
   239   * features and use the ReservedIdentityBit to detect if Linux 
is the
   240   * root partition. But that requires negotiating CPU management
   241   * interface (a process to be finalized).
   242   *
   243   * For now, use the privilege flag as the indicator for running 
as
   244   * root.
   245   */
   246  if (cpuid_ebx(HYPERV_CPUID_FEATURES) & HV_CPU_MANAGEMENT) {
 > 247  hv_root_partition = true;
   248  pr_info("Hyper-V: running as root partition\n");
   249  }
   250  
   251  /*
   252   * Extract host information.
   253   */
   254  if (cpuid_eax(HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS) >=
   255  HYPERV_CPUID_VERSION) {
   256  hv_host_info_eax = cpuid_eax(HYPERV_CPUID_VERSION);
   257  hv_host_info_ebx = cpuid_ebx(HYPERV_CPUID_VERSION);
   258  hv_host_info_ecx = cpuid_ecx(HYPERV_CPUID_VERSION);
   259  hv_host_info_edx = cpuid_edx(HYPERV_CPUID_VERSION);
   260  
   261  pr_info("Hyper-V Host Build:%d-%d.%d-%d-%d.%d\n",
   262  hv_host_info_eax, hv_host_info_ebx >> 16,
   263  hv_host_info_ebx & 0x, hv_host_info_ecx,
   264  hv_host_info_edx >> 24, hv_host_info_edx & 
0xFF);
   265  }
   266  
   267  if (ms_hyperv.features & HV_X64_ACCESS_FREQUENCY_MSRS &&
   268  ms_hyperv.misc_features & 
HV_FEATURE_FREQUENCY_MSRS_AVAILABLE) {
   269  x86_platform.calibrate_tsc = hv_get_tsc_khz;
   270  x86_platform.calibrate_cpu = hv_get_tsc_khz;
   271  }
   272  
   273  if (ms_hyperv.hints & HV_X64_ENLIGHTENED_VMCS_RECOMMENDED) {
   274 

Re: [PATCH 3/3] drm/qxl: Remove fbcon acceleration leftovers

[kernel test robot]

Hi Daniel,

I love your patch! Perhaps something to improve:

[auto build test WARNING on drm-intel/for-linux-next]
[also build test WARNING on drm-exynos/exynos-drm-next 
tegra-drm/drm/tegra/for-next linus/master v5.10-rc1 next-20201029]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Daniel-Vetter/fbcon-Disable-accelerated-scrolling/20201029-181618
base:   git://anongit.freedesktop.org/drm-intel for-linux-next
config: powerpc-randconfig-r015-20201029 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
772aaa602383cf82795572ebcd86b0e660f3579f)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install powerpc cross compiling tool for clang build
# apt-get install binutils-powerpc-linux-gnu
# 
https://github.com/0day-ci/linux/commit/188b22d2b66860695df5d07bf2b7115976790b2c
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Daniel-Vetter/fbcon-Disable-accelerated-scrolling/20201029-181618
git checkout 188b22d2b66860695df5d07bf2b7115976790b2c
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   In file included from drivers/gpu/drm/qxl/qxl_drv.c:31:
>> drivers/gpu/drm/qxl/qxl_drv.h:178:35: warning: declaration of 'struct 
>> qxl_device' will not be visible outside of this function [-Wvisibility]
   int qxl_debugfs_fence_init(struct qxl_device *rdev);
 ^
   1 warning generated.

vim +178 drivers/gpu/drm/qxl/qxl_drv.h

f64122c1f6ade30 Dave Airlie 2013-02-25  177  
f64122c1f6ade30 Dave Airlie 2013-02-25 @178  int qxl_debugfs_fence_init(struct 
qxl_device *rdev);
f64122c1f6ade30 Dave Airlie 2013-02-25  179  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org


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Re: [PATCH v5 06/16] x86/hyperv: allocate output arg pages if required

[kernel test robot]

Hi Wei,

I love your patch! Perhaps something to improve:

[auto build test WARNING on e71ba9452f0b5b2e8dc8aa5445198cd9214a6a62]

url:
https://github.com/0day-ci/linux/commits/Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20210120-215640
base:e71ba9452f0b5b2e8dc8aa5445198cd9214a6a62
config: x86_64-randconfig-s021-20210120 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.3-208-g46a52ca4-dirty
# 
https://github.com/0day-ci/linux/commit/f93337fc44e13a1506633f5d308bf74a8311dada
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Wei-Liu/Introducing-Linux-root-partition-support-for-Microsoft-Hypervisor/20210120-215640
git checkout f93337fc44e13a1506633f5d308bf74a8311dada
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 


"sparse warnings: (new ones prefixed by >>)"
   arch/x86/hyperv/hv_init.c:84:30: sparse: sparse: incorrect type in 
initializer (different address spaces) @@ expected void const [noderef] 
__percpu *__vpp_verify @@ got void [noderef] __percpu ** @@
   arch/x86/hyperv/hv_init.c:84:30: sparse: expected void const [noderef] 
__percpu *__vpp_verify
   arch/x86/hyperv/hv_init.c:84:30: sparse: got void [noderef] __percpu **
   arch/x86/hyperv/hv_init.c:89:39: sparse: sparse: incorrect type in 
initializer (different address spaces) @@ expected void const [noderef] 
__percpu *__vpp_verify @@ got void [noderef] __percpu ** @@
   arch/x86/hyperv/hv_init.c:89:39: sparse: expected void const [noderef] 
__percpu *__vpp_verify
   arch/x86/hyperv/hv_init.c:89:39: sparse: got void [noderef] __percpu **
   arch/x86/hyperv/hv_init.c:221:30: sparse: sparse: incorrect type in 
initializer (different address spaces) @@ expected void const [noderef] 
__percpu *__vpp_verify @@ got void [noderef] __percpu ** @@
   arch/x86/hyperv/hv_init.c:221:30: sparse: expected void const [noderef] 
__percpu *__vpp_verify
   arch/x86/hyperv/hv_init.c:221:30: sparse: got void [noderef] __percpu **
   arch/x86/hyperv/hv_init.c:228:39: sparse: sparse: incorrect type in 
initializer (different address spaces) @@ expected void const [noderef] 
__percpu *__vpp_verify @@ got void [noderef] __percpu ** @@
   arch/x86/hyperv/hv_init.c:228:39: sparse: expected void const [noderef] 
__percpu *__vpp_verify
   arch/x86/hyperv/hv_init.c:228:39: sparse: got void [noderef] __percpu **
   arch/x86/hyperv/hv_init.c:364:31: sparse: sparse: incorrect type in 
assignment (different address spaces) @@ expected void [noderef] __percpu 
**extern [addressable] [toplevel] hyperv_pcpu_input_arg @@ got void 
*[noderef] __percpu * @@
   arch/x86/hyperv/hv_init.c:364:31: sparse: expected void [noderef] 
__percpu **extern [addressable] [toplevel] hyperv_pcpu_input_arg
   arch/x86/hyperv/hv_init.c:364:31: sparse: got void *[noderef] __percpu *
>> arch/x86/hyperv/hv_init.c:370:40: sparse: sparse: incorrect type in 
>> assignment (different address spaces) @@ expected void [noderef] 
>> __percpu **extern [addressable] [toplevel] hyperv_pcpu_output_arg @@ got 
>> void *[noderef] __percpu * @@
   arch/x86/hyperv/hv_init.c:370:40: sparse: expected void [noderef] 
__percpu **extern [addressable] [toplevel] hyperv_pcpu_output_arg
   arch/x86/hyperv/hv_init.c:370:40: sparse: got void *[noderef] __percpu *

vim +370 arch/x86/hyperv/hv_init.c

   211  
   212  static int hv_cpu_die(unsigned int cpu)
   213  {
   214  struct hv_reenlightenment_control re_ctrl;
   215  unsigned int new_cpu;
   216  unsigned long flags;
   217  void **input_arg;
   218  void *pg;
   219  
   220  local_irq_save(flags);
 > 221  input_arg = (void **)this_cpu_ptr(hyperv_pcpu_input_arg);
   222  pg = *input_arg;
   223  *input_arg = NULL;
   224  
   225  if (hv_root_partition) {
   226  void **output_arg;
   227  
   228  output_arg = (void 
**)this_cpu_ptr(hyperv_pcpu_output_arg);
   229  *output_arg = NULL;
   230  }
   231  
   232  local_irq_restore(flags);
   233  
   234  free_pages((unsigned long)pg, hv_root_partition ? 1 : 0);
   235  
   236  if (hv_vp_assist_page && hv_vp_assist_page[cpu])
   237  wrmsrl(HV_X64_MSR_VP_ASSIST_PAGE, 0);
   238  
   239  if (hv_reenlightenment_cb == NULL)
   240  return 0;
   241  
   242  rdmsrl(HV_X64_MSR_REENLIGHTENMENT_CONTROL, *((u64 *)_ctrl));
   243  if (re_ctrl.target_vp == hv_vp_index[cpu]) {
   244 

Re: [PATCH rfc 2/3] virtio-net: support receive timestamp

[kernel test robot]

Hi Willem,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on ipvs/master]
[also build test WARNING on linus/master v5.11-rc6 next-20210125]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Willem-de-Bruijn/virtio-net-add-tx-hash-rx-tstamp-and-tx-tstamp/20201229-002604
base:   https://git.kernel.org/pub/scm/linux/kernel/git/horms/ipvs.git master
config: x86_64-randconfig-s021-20201228 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.3-215-g0fb77bb6-dirty
# 
https://github.com/0day-ci/linux/commit/d309db6857fa35b0d7a11cc5229436d6d71ab274
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Willem-de-Bruijn/virtio-net-add-tx-hash-rx-tstamp-and-tx-tstamp/20201229-002604
git checkout d309db6857fa35b0d7a11cc5229436d6d71ab274
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 


"sparse warnings: (new ones prefixed by >>)"
>> drivers/net/virtio_net.c:1096:80: sparse: sparse: incorrect type in argument 
>> 1 (different base types) @@ expected unsigned long long [usertype] ns @@ 
>> got restricted __virtio64 [usertype] tstamp @@
   drivers/net/virtio_net.c:1096:80: sparse: expected unsigned long long 
[usertype] ns
   drivers/net/virtio_net.c:1096:80: sparse: got restricted __virtio64 
[usertype] tstamp
   drivers/net/virtio_net.c:1580:32: sparse: sparse: incorrect type in 
assignment (different base types) @@ expected restricted __le32 [usertype] 
hash_value @@ got restricted __virtio32 @@
   drivers/net/virtio_net.c:1580:32: sparse: expected restricted __le32 
[usertype] hash_value
   drivers/net/virtio_net.c:1580:32: sparse: got restricted __virtio32
   drivers/net/virtio_net.c:1581:33: sparse: sparse: incorrect type in 
assignment (different base types) @@ expected restricted __le16 [usertype] 
hash_report @@ got int @@
   drivers/net/virtio_net.c:1581:33: sparse: expected restricted __le16 
[usertype] hash_report
   drivers/net/virtio_net.c:1581:33: sparse: got int

vim +1096 drivers/net/virtio_net.c

  1048  
  1049  static void receive_buf(struct virtnet_info *vi, struct receive_queue 
*rq,
  1050  void *buf, unsigned int len, void **ctx,
  1051  unsigned int *xdp_xmit,
  1052  struct virtnet_rq_stats *stats)
  1053  {
  1054  struct net_device *dev = vi->dev;
  1055  struct sk_buff *skb;
  1056  struct virtio_net_hdr_mrg_rxbuf *hdr;
  1057  
  1058  if (unlikely(len < vi->hdr_len + ETH_HLEN)) {
  1059  pr_debug("%s: short packet %i\n", dev->name, len);
  1060  dev->stats.rx_length_errors++;
  1061  if (vi->mergeable_rx_bufs) {
  1062  put_page(virt_to_head_page(buf));
  1063  } else if (vi->big_packets) {
  1064  give_pages(rq, buf);
  1065  } else {
  1066  put_page(virt_to_head_page(buf));
  1067  }
  1068  return;
  1069  }
  1070  
  1071  if (vi->mergeable_rx_bufs)
  1072  skb = receive_mergeable(dev, vi, rq, buf, ctx, len, 
xdp_xmit,
  1073  stats);
  1074  else if (vi->big_packets)
  1075  skb = receive_big(dev, vi, rq, buf, len, stats);
  1076  else
  1077  skb = receive_small(dev, vi, rq, buf, ctx, len, 
xdp_xmit, stats);
  1078  
  1079  if (unlikely(!skb))
  1080  return;
  1081  
  1082  hdr = skb_vnet_hdr(skb);
  1083  
  1084  if (hdr->hdr.flags & VIRTIO_NET_HDR_F_DATA_VALID)
  1085  skb->ip_summed = CHECKSUM_UNNECESSARY;
  1086  
  1087  if (virtio_net_hdr_to_skb(skb, >hdr,
  1088virtio_is_little_endian(vi->vdev))) {
  1089  net_warn_ratelimited("%s: bad gso: type: %u, size: 
%u\n",
  1090   dev->name, hdr->hdr.gso_type,
  1091   hdr->hdr.gso_size);
  1092  goto frame_err;
  1093  }
  1094  
  1095  if (vi->has_rx_tstamp)
> 1096  skb_hwtstamps(skb)->hwtstamp = 
> ns_to_ktime(skb_vnet_hdr_12(skb)->tstamp);
  1097  
  1098  skb

Re: [PATCH rfc 3/3] virtio-net: support transmit timestamp

[kernel test robot]

Hi Willem,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on ipvs/master]
[also build test WARNING on linus/master v5.11-rc6 next-20210125]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Willem-de-Bruijn/virtio-net-add-tx-hash-rx-tstamp-and-tx-tstamp/20201229-002604
base:   https://git.kernel.org/pub/scm/linux/kernel/git/horms/ipvs.git master
config: x86_64-randconfig-s021-20201228 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.3-215-g0fb77bb6-dirty
# 
https://github.com/0day-ci/linux/commit/be9cab7692382c7886333b498d1d8adbba1881f7
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Willem-de-Bruijn/virtio-net-add-tx-hash-rx-tstamp-and-tx-tstamp/20201229-002604
git checkout be9cab7692382c7886333b498d1d8adbba1881f7
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 


"sparse warnings: (new ones prefixed by >>)"
   drivers/net/virtio_net.c:1099:80: sparse: sparse: incorrect type in argument 
1 (different base types) @@ expected unsigned long long [usertype] ns @@
 got restricted __virtio64 [usertype] tstamp @@
   drivers/net/virtio_net.c:1099:80: sparse: expected unsigned long long 
[usertype] ns
   drivers/net/virtio_net.c:1099:80: sparse: got restricted __virtio64 
[usertype] tstamp
>> drivers/net/virtio_net.c:1583:33: sparse: sparse: incorrect type in 
>> assignment (different base types) @@ expected restricted __le32 
>> [usertype] value @@ got restricted __virtio32 @@
   drivers/net/virtio_net.c:1583:33: sparse: expected restricted __le32 
[usertype] value
   drivers/net/virtio_net.c:1583:33: sparse: got restricted __virtio32
>> drivers/net/virtio_net.c:1584:34: sparse: sparse: incorrect type in 
>> assignment (different base types) @@ expected restricted __le16 
>> [usertype] report @@ got int @@
   drivers/net/virtio_net.c:1584:34: sparse: expected restricted __le16 
[usertype] report
   drivers/net/virtio_net.c:1584:34: sparse: got int

vim +1583 drivers/net/virtio_net.c

  1550  
  1551  static int xmit_skb(struct send_queue *sq, struct sk_buff *skb)
  1552  {
  1553  struct virtio_net_hdr_mrg_rxbuf *hdr;
  1554  const unsigned char *dest = ((struct ethhdr 
*)skb->data)->h_dest;
  1555  struct virtnet_info *vi = sq->vq->vdev->priv;
  1556  struct virtio_net_hdr_v12 *h12;
  1557  int num_sg;
  1558  unsigned hdr_len = vi->hdr_len;
  1559  bool can_push;
  1560  
  1561  pr_debug("%s: xmit %p %pM\n", vi->dev->name, skb, dest);
  1562  
  1563  can_push = vi->any_header_sg &&
  1564  !((unsigned long)skb->data & (__alignof__(*hdr) - 1)) &&
  1565  !skb_header_cloned(skb) && skb_headroom(skb) >= hdr_len;
  1566  /* Even if we can, don't push here yet as this would skew
  1567   * csum_start offset below. */
  1568  if (can_push)
  1569  hdr = (struct virtio_net_hdr_mrg_rxbuf *)(skb->data - 
hdr_len);
  1570  else
  1571  hdr = skb_vnet_hdr(skb);
  1572  
  1573  if (virtio_net_hdr_from_skb(skb, >hdr,
  1574  virtio_is_little_endian(vi->vdev), 
false,
  1575  0))
  1576  BUG();
  1577  
  1578  if (vi->mergeable_rx_bufs)
  1579  hdr->num_buffers = 0;
  1580  
  1581  h12 = (void *)hdr;
  1582  if (vi->has_tx_hash) {
> 1583  h12->hash.value = cpu_to_virtio32(vi->vdev, skb->hash);
> 1584  h12->hash.report = skb->l4_hash ? 
> VIRTIO_NET_HASH_REPORT_L4 :
  1585
VIRTIO_NET_HASH_REPORT_OTHER;
  1586  h12->hash.flow_state = VIRTIO_NET_HASH_STATE_DEFAULT;
  1587  }
  1588  if (vi->has_tx_tstamp)
  1589  h12->tstamp = cpu_to_virtio64(vi->vdev, skb->tstamp);
  1590  
  1591  sg_init_table(sq->sg, skb_shinfo(skb)->nr_frags + (can_push ? 1 
: 2));
  1592  if (can_push) {
  1593  __skb_push(skb, hdr_len);
  1594  num_sg = skb_to_sgvec(skb, sq->sg, 0, skb->len);
  1595  if (unlikely(num_sg < 0))
  1596   

Re: [PATCH v5 6/6] drm/qxl: simplify qxl_fence_wait

[kernel test robot]

Hi Gerd,

I love your patch! Perhaps something to improve:

[auto build test WARNING on drm-intel/for-linux-next]
[also build test WARNING on drm-tip/drm-tip drm-exynos/exynos-drm-next 
tegra-drm/drm/tegra/for-next linus/master v5.11-rc6 next-20210125]
[cannot apply to drm/drm-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Gerd-Hoffmann/drm-qxl-fix-driver-shutdown-issues/20210203-211739
base:   git://anongit.freedesktop.org/drm-intel for-linux-next
config: i386-randconfig-a013-20210202 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
# 
https://github.com/0day-ci/linux/commit/0b11c8d52de8c79900ab632aa3527f19c442efc6
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Gerd-Hoffmann/drm-qxl-fix-driver-shutdown-issues/20210203-211739
git checkout 0b11c8d52de8c79900ab632aa3527f19c442efc6
# save the attached .config to linux build tree
make W=1 ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   drivers/gpu/drm/qxl/qxl_release.c: In function 'qxl_fence_wait':
>> drivers/gpu/drm/qxl/qxl_release.c:61:22: warning: variable 'release' set but 
>> not used [-Wunused-but-set-variable]
  61 |  struct qxl_release *release;
 |  ^~~


vim +/release +61 drivers/gpu/drm/qxl/qxl_release.c

2f453ed4038526 Maarten Lankhorst 2014-04-02  56  
f54d1867005c33 Chris Wilson  2016-10-25  57  static long 
qxl_fence_wait(struct dma_fence *fence, bool intr,
f54d1867005c33 Chris Wilson  2016-10-25  58
signed long timeout)
2f453ed4038526 Maarten Lankhorst 2014-04-02  59  {
2f453ed4038526 Maarten Lankhorst 2014-04-02  60 struct qxl_device *qdev;
2f453ed4038526 Maarten Lankhorst 2014-04-02 @61 struct qxl_release 
*release;
2f453ed4038526 Maarten Lankhorst 2014-04-02  62 unsigned long cur, end 
= jiffies + timeout;
2f453ed4038526 Maarten Lankhorst 2014-04-02  63  
2f453ed4038526 Maarten Lankhorst 2014-04-02  64 qdev = 
container_of(fence->lock, struct qxl_device, release_lock);
2f453ed4038526 Maarten Lankhorst 2014-04-02  65 release = 
container_of(fence, struct qxl_release, base);
2f453ed4038526 Maarten Lankhorst 2014-04-02  66  
f54d1867005c33 Chris Wilson  2016-10-25  67 if 
(dma_fence_is_signaled(fence))
2f453ed4038526 Maarten Lankhorst 2014-04-02  68 goto signaled;
2f453ed4038526 Maarten Lankhorst 2014-04-02  69  
2f453ed4038526 Maarten Lankhorst 2014-04-02  70 qxl_io_notify_oom(qdev);
0b11c8d52de8c7 Gerd Hoffmann 2021-02-03  71 if 
(!wait_event_timeout(qdev->release_event,
0b11c8d52de8c7 Gerd Hoffmann 2021-02-03  72 
dma_fence_is_signaled(fence),
0b11c8d52de8c7 Gerd Hoffmann 2021-02-03  73 
timeout))
2f453ed4038526 Maarten Lankhorst 2014-04-02  74 return 0;
2f453ed4038526 Maarten Lankhorst 2014-04-02  75  
2f453ed4038526 Maarten Lankhorst 2014-04-02  76  signaled:
2f453ed4038526 Maarten Lankhorst 2014-04-02  77 cur = jiffies;
2f453ed4038526 Maarten Lankhorst 2014-04-02  78 if (time_after(cur, 
end))
2f453ed4038526 Maarten Lankhorst 2014-04-02  79 return 0;
2f453ed4038526 Maarten Lankhorst 2014-04-02  80 return end - cur;
2f453ed4038526 Maarten Lankhorst 2014-04-02  81  }
2f453ed4038526 Maarten Lankhorst 2014-04-02  82  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org


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Re: [PATCH] virtiofs: Enable multiple request queues

[kernel test robot]

Hi Connor,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on fuse/for-next]
[also build test WARNING on linux/master linus/master v5.12 next-20210507]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Connor-Kuehl/virtiofs-Enable-multiple-request-queues/20210508-061611
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git 
for-next
config: microblaze-randconfig-r001-20210507 (attached as .config)
compiler: microblaze-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# 
https://github.com/0day-ci/linux/commit/6ffd4543401bc990353404b556d91cce34b017fc
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Connor-Kuehl/virtiofs-Enable-multiple-request-queues/20210508-061611
git checkout 6ffd4543401bc990353404b556d91cce34b017fc
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 
ARCH=microblaze 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   fs/fuse/virtio_fs.c: In function 'virtio_fs_wake_pending_and_unlock':
>> fs/fuse/virtio_fs.c:1246:20: warning: variable 'fs' set but not used 
>> [-Wunused-but-set-variable]
1246 |  struct virtio_fs *fs;
 |^~


vim +/fs +1246 fs/fuse/virtio_fs.c

a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1242  
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1243  static void 
virtio_fs_wake_pending_and_unlock(struct fuse_iqueue *fiq)
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1244  __releases(fiq->lock)
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1245  {
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12 @1246 struct virtio_fs *fs;
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1247 struct fuse_req *req;
51fecdd2555b3e Vivek Goyal 2019-10-15  1248 struct virtio_fs_vq 
*fsvq;
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1249 int ret;
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1250  
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1251 
WARN_ON(list_empty(>pending));
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1252 req = 
list_last_entry(>pending, struct fuse_req, list);
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1253 clear_bit(FR_PENDING, 
>flags);
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1254 
list_del_init(>list);
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1255 
WARN_ON(!list_empty(>pending));
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1256 spin_unlock(>lock);
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1257  
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1258 fs = fiq->priv;
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1259  
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1260 pr_debug("%s: opcode %u 
unique %#llx nodeid %#llx in.len %u out.len %u\n",
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1261   __func__, 
req->in.h.opcode, req->in.h.unique,
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1262  
req->in.h.nodeid, req->in.h.len,
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1263  
fuse_len_args(req->args->out_numargs, req->args->out_args));
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1264  
6ffd4543401bc9 Connor Kuehl2021-05-07  1265 fsvq = 
this_cpu_read(this_cpu_fsvq);
6ffd4543401bc9 Connor Kuehl2021-05-07  1266  
a9bfd9dd341756 Vivek Goyal 2019-10-15  1267 ret = 
virtio_fs_enqueue_req(fsvq, req, false);
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1268 if (ret < 0) {
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  1269 if (ret == 
-ENOMEM || ret == -ENOSPC) {
a9bfd9dd341756 Vivek Goyal 2019-10-15  1270 /*
a9bfd9dd341756 Vivek Goyal 2019-10-15  1271  * 
Virtqueue full. Retry submission from worker
a9bfd9dd341756 Vivek Goyal 2019-10-15  1272  * 
context as we might be holding fc->bg_lock.
a9bfd9dd341756 Vivek Goyal 2019-10-15  1273  */
a9bfd9dd341756 Vivek Goyal 2019-10-15  1274 
spin_lock(>lock);
a9bfd9dd341756 Vivek Goyal 2019-10-15  1275 
list_add_tail(>list, >queued_reqs);
a9bfd9dd341756 Vivek Goyal 2019-10-15  1276 
inc_in_flight_req(fsvq);
a9bfd9dd341756 Vivek Goyal 2019-10-15  1277 
schedule_delayed_work(>dispatch_work,
a9bfd9dd341756 Vivek Goyal 2019-10-

Re: [PATCH] virtio-net: Add validation for used length

[kernel test robot]

Hi Xie,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.13-rc3 next-20210525]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Xie-Yongji/virtio-net-Add-validation-for-used-length/20210525-130449
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
a050a6d2b7e80ca52b2f4141eaf3420d201b72b3
config: x86_64-randconfig-a005-20210525 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 
99155e913e9bad5f7f8a247f8bb3a3ff3da74af1)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# 
https://github.com/0day-ci/linux/commit/9cacb0e306acf93325699401dcae01f77505f017
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Xie-Yongji/virtio-net-Add-validation-for-used-length/20210525-130449
git checkout 9cacb0e306acf93325699401dcae01f77505f017
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

>> drivers/net/virtio_net.c:740:22: warning: format specifies type 'unsigned 
>> long' but the argument has type 'int' [-Wformat]
dev->name, len, GOOD_PACKET_LEN);
^~~
   include/linux/printk.h:424:26: note: expanded from macro 'pr_debug'
   dynamic_pr_debug(fmt, ##__VA_ARGS__)
~~~^~~
   include/linux/dynamic_debug.h:163:22: note: expanded from macro 
'dynamic_pr_debug'
  pr_fmt(fmt), ##__VA_ARGS__)
 ~~~ ^~~
   include/linux/dynamic_debug.h:152:56: note: expanded from macro 
'_dynamic_func_call'
   __dynamic_func_call(__UNIQUE_ID(ddebug), fmt, func, ##__VA_ARGS__)
 ^~~
   include/linux/dynamic_debug.h:134:15: note: expanded from macro 
'__dynamic_func_call'
   func(, ##__VA_ARGS__);   \
   ^~~
   drivers/net/virtio_net.c:35:25: note: expanded from macro 'GOOD_PACKET_LEN'
   #define GOOD_PACKET_LEN (ETH_HLEN + VLAN_HLEN + ETH_DATA_LEN)
   ^
   drivers/net/virtio_net.c:820:21: warning: format specifies type 'unsigned 
long' but the argument has type 'int' [-Wformat]
dev->name, len, GOOD_PACKET_LEN);
^~~
   include/linux/printk.h:424:26: note: expanded from macro 'pr_debug'
   dynamic_pr_debug(fmt, ##__VA_ARGS__)
~~~^~~
   include/linux/dynamic_debug.h:163:22: note: expanded from macro 
'dynamic_pr_debug'
  pr_fmt(fmt), ##__VA_ARGS__)
 ~~~ ^~~
   include/linux/dynamic_debug.h:152:56: note: expanded from macro 
'_dynamic_func_call'
   __dynamic_func_call(__UNIQUE_ID(ddebug), fmt, func, ##__VA_ARGS__)
 ^~~
   include/linux/dynamic_debug.h:134:15: note: expanded from macro 
'__dynamic_func_call'
   func(, ##__VA_ARGS__);   \
   ^~~
   drivers/net/virtio_net.c:35:25: note: expanded from macro 'GOOD_PACKET_LEN'
   #define GOOD_PACKET_LEN (ETH_HLEN + VLAN_HLEN + ETH_DATA_LEN)
   ^
   2 warnings generated.


vim +740 drivers/net/virtio_net.c

   704  
   705  static struct sk_buff *receive_small(struct net_device *dev,
   706   struct virtnet_info *vi,
   707   struct receive_queue *rq,
   708   void *buf, void *ctx,
   709   unsigned int len,
   710   unsigned int *xdp_xmit,
   711   struct virtnet_rq_stats *stats)
   712  {
   713  struct sk_buff *skb;
   714  struct bpf_prog *xdp_prog;
   715  unsigned int xdp_headroom = (unsigned long)ctx;
   716  unsigned int header_offset = VIRTNET_RX_PA

Re: [PATCH] virtio_console: Assure used length from device is limited

[kernel test robot]

Hi Xie,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on char-misc/char-misc-testing]
[also build test WARNING on v5.13-rc3 next-20210525]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Xie-Yongji/virtio_console-Assure-used-length-from-device-is-limited/20210525-125848
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git 
281e468446994a7672733af2bf941f4110d4a895
config: x86_64-randconfig-a001-20210525 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 
99155e913e9bad5f7f8a247f8bb3a3ff3da74af1)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# 
https://github.com/0day-ci/linux/commit/edaca17a036c98c3e0f6953318976caff7168a6e
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Xie-Yongji/virtio_console-Assure-used-length-from-device-is-limited/20210525-125848
git checkout edaca17a036c98c3e0f6953318976caff7168a6e
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

>> drivers/char/virtio_console.c:478:14: warning: comparison of distinct 
>> pointer types ('typeof (len) *' (aka 'unsigned int *') and 'typeof 
>> (buf->size) *' (aka 'unsigned long *')) [-Wcompare-distinct-pointer-types]
   buf->len = min(len, buf->size);
  ^~~
   include/linux/minmax.h:51:19: note: expanded from macro 'min'
   #define min(x, y)   __careful_cmp(x, y, <)
   ^~
   include/linux/minmax.h:42:24: note: expanded from macro '__careful_cmp'
   __builtin_choose_expr(__safe_cmp(x, y), \
 ^~~~
   include/linux/minmax.h:32:4: note: expanded from macro '__safe_cmp'
   (__typecheck(x, y) && __no_side_effects(x, y))
^
   include/linux/minmax.h:18:28: note: expanded from macro '__typecheck'
   (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
  ~~ ^  ~~
   drivers/char/virtio_console.c:1712:14: warning: comparison of distinct 
pointer types ('typeof (len) *' (aka 'unsigned int *') and 'typeof (buf->size) 
*' (aka 'unsigned long *')) [-Wcompare-distinct-pointer-types]
   buf->len = min(len, buf->size);
  ^~~
   include/linux/minmax.h:51:19: note: expanded from macro 'min'
   #define min(x, y)   __careful_cmp(x, y, <)
   ^~
   include/linux/minmax.h:42:24: note: expanded from macro '__careful_cmp'
   __builtin_choose_expr(__safe_cmp(x, y), \
 ^~~~
   include/linux/minmax.h:32:4: note: expanded from macro '__safe_cmp'
   (__typecheck(x, y) && __no_side_effects(x, y))
^
   include/linux/minmax.h:18:28: note: expanded from macro '__typecheck'
   (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
  ~~ ^  ~~
   2 warnings generated.


vim +478 drivers/char/virtio_console.c

   466  
   467  /* Callers should take appropriate locks */
   468  static struct port_buffer *get_inbuf(struct port *port)
   469  {
   470  struct port_buffer *buf;
   471  unsigned int len;
   472  
   473  if (port->inbuf)
   474  return port->inbuf;
   475  
   476  buf = virtqueue_get_buf(port->in_vq, );
   477  if (buf) {
 > 478  buf->len = min(len, buf->size);
   479  buf->offset = 0;
   480  port->stats.bytes_received += len;
   481  }
   482  return buf;
   483  }
   484  

---
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https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org


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Re: [PATCH] virtio_console: Assure used length from device is limited

[kernel test robot]

Hi Xie,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on char-misc/char-misc-testing]
[also build test WARNING on v5.13-rc3 next-20210525]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Xie-Yongji/virtio_console-Assure-used-length-from-device-is-limited/20210525-125848
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git 
281e468446994a7672733af2bf941f4110d4a895
config: x86_64-randconfig-s022-20210525 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.3-341-g8af24329-dirty
# 
https://github.com/0day-ci/linux/commit/edaca17a036c98c3e0f6953318976caff7168a6e
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Xie-Yongji/virtio_console-Assure-used-length-from-device-is-limited/20210525-125848
git checkout edaca17a036c98c3e0f6953318976caff7168a6e
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 
ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 


sparse warnings: (new ones prefixed by >>)
>> drivers/char/virtio_console.c:478:28: sparse: sparse: incompatible types in 
>> comparison expression (different type sizes):
>> drivers/char/virtio_console.c:478:28: sparse:unsigned int *
>> drivers/char/virtio_console.c:478:28: sparse:unsigned long *
   drivers/char/virtio_console.c:1712:28: sparse: sparse: incompatible types in 
comparison expression (different type sizes):
   drivers/char/virtio_console.c:1712:28: sparse:unsigned int *
   drivers/char/virtio_console.c:1712:28: sparse:unsigned long *

vim +478 drivers/char/virtio_console.c

   466  
   467  /* Callers should take appropriate locks */
   468  static struct port_buffer *get_inbuf(struct port *port)
   469  {
   470  struct port_buffer *buf;
   471  unsigned int len;
   472  
   473  if (port->inbuf)
   474  return port->inbuf;
   475  
   476  buf = virtqueue_get_buf(port->in_vq, );
   477  if (buf) {
 > 478  buf->len = min(len, buf->size);
   479  buf->offset = 0;
   480  port->stats.bytes_received += len;
   481  }
   482  return buf;
   483  }
   484  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org


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Re: [PATCH 10/19] drivers/hv: get and set vcpu registers ioctls

[kernel test robot]

Hi Nuno,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on asm-generic/master]
[also build test WARNING on tip/master linux/master linus/master v5.13-rc3]
[cannot apply to tip/x86/core]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Nuno-Das-Neves/Microsoft-Hypervisor-root-partition-ioctl-interface/20210529-064549
base:   https://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git 
master
config: x86_64-randconfig-a016-20210528 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 
bc6799f2f79f0ae87e9f1ebf9d25ba799fbd25a9)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# 
https://github.com/0day-ci/linux/commit/a5aa61354fa03cbfdeac16d3f06e4a51a7119076
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Nuno-Das-Neves/Microsoft-Hypervisor-root-partition-ioctl-interface/20210529-064549
git checkout a5aa61354fa03cbfdeac16d3f06e4a51a7119076
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

>> usr/include/asm-generic/hyperv-tlfs.h:25: found __[us]{8,16,32,64} type 
>> without #include 

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org


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Re: [PATCH 1/4] vdpa: support packed virtqueue for set/get_vq_state()

[kernel test robot]

Hi Jason,

I love your patch! Yet something to improve:

[auto build test ERROR on vhost/linux-next]
[also build test ERROR on linus/master v5.13-rc4 next-20210601]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Jason-Wang/Packed-virtqueue-state-support-for-vDPA/20210601-164715
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
config: alpha-allyesconfig (attached as .config)
compiler: alpha-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# 
https://github.com/0day-ci/linux/commit/eccc56e52d8c89dd93da5df0362931151417eb6a
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Jason-Wang/Packed-virtqueue-state-support-for-vDPA/20210601-164715
git checkout eccc56e52d8c89dd93da5df0362931151417eb6a
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=alpha 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

   drivers/vdpa/mlx5/net/mlx5_vnet.c: In function 'mlx5_vdpa_set_vq_state':
>> drivers/vdpa/mlx5/net/mlx5_vnet.c:1430:23: error: 'const struct 
>> vdpa_vq_state' has no member named 'avail_index'
1430 |  mvq->used_idx = state->avail_index;
 |   ^~
   drivers/vdpa/mlx5/net/mlx5_vnet.c:1431:24: error: 'const struct 
vdpa_vq_state' has no member named 'avail_index'
1431 |  mvq->avail_idx = state->avail_index;
 |^~
   drivers/vdpa/mlx5/net/mlx5_vnet.c: In function 'mlx5_vdpa_get_vq_state':
>> drivers/vdpa/mlx5/net/mlx5_vnet.c:1452:8: error: 'struct vdpa_vq_state' has 
>> no member named 'avail_index'
1452 |   state->avail_index = mvq->used_idx;
 |^~
   drivers/vdpa/mlx5/net/mlx5_vnet.c:1461:7: error: 'struct vdpa_vq_state' has 
no member named 'avail_index'
1461 |  state->avail_index = attr.used_index;
 |   ^~


vim +1430 drivers/vdpa/mlx5/net/mlx5_vnet.c

1a86b377aa2147 Eli Cohen  2020-08-04  1417  
1a86b377aa2147 Eli Cohen  2020-08-04  1418  static int 
mlx5_vdpa_set_vq_state(struct vdpa_device *vdev, u16 idx,
1a86b377aa2147 Eli Cohen  2020-08-04  1419const 
struct vdpa_vq_state *state)
1a86b377aa2147 Eli Cohen  2020-08-04  1420  {
1a86b377aa2147 Eli Cohen  2020-08-04  1421  struct mlx5_vdpa_dev *mvdev = 
to_mvdev(vdev);
1a86b377aa2147 Eli Cohen  2020-08-04  1422  struct mlx5_vdpa_net *ndev = 
to_mlx5_vdpa_ndev(mvdev);
1a86b377aa2147 Eli Cohen  2020-08-04  1423  struct mlx5_vdpa_virtqueue *mvq 
= >vqs[idx];
1a86b377aa2147 Eli Cohen  2020-08-04  1424  
1a86b377aa2147 Eli Cohen  2020-08-04  1425  if (mvq->fw_state == 
MLX5_VIRTIO_NET_Q_OBJECT_STATE_RDY) {
1a86b377aa2147 Eli Cohen  2020-08-04  1426  mlx5_vdpa_warn(mvdev, 
"can't modify available index\n");
1a86b377aa2147 Eli Cohen  2020-08-04  1427  return -EINVAL;
1a86b377aa2147 Eli Cohen  2020-08-04  1428  }
1a86b377aa2147 Eli Cohen  2020-08-04  1429  
bc04d93ea30a0a Eli Cohen  2021-04-08 @1430  mvq->used_idx = 
state->avail_index;
1a86b377aa2147 Eli Cohen  2020-08-04  1431  mvq->avail_idx = 
state->avail_index;
1a86b377aa2147 Eli Cohen  2020-08-04  1432  return 0;
1a86b377aa2147 Eli Cohen  2020-08-04  1433  }
1a86b377aa2147 Eli Cohen  2020-08-04  1434  
1a86b377aa2147 Eli Cohen  2020-08-04  1435  static int 
mlx5_vdpa_get_vq_state(struct vdpa_device *vdev, u16 idx, struct vdpa_vq_state 
*state)
1a86b377aa2147 Eli Cohen  2020-08-04  1436  {
1a86b377aa2147 Eli Cohen  2020-08-04  1437  struct mlx5_vdpa_dev *mvdev = 
to_mvdev(vdev);
1a86b377aa2147 Eli Cohen  2020-08-04  1438  struct mlx5_vdpa_net *ndev = 
to_mlx5_vdpa_ndev(mvdev);
1a86b377aa2147 Eli Cohen  2020-08-04  1439  struct mlx5_vdpa_virtqueue *mvq 
= >vqs[idx];
1a86b377aa2147 Eli Cohen  2020-08-04  1440  struct mlx5_virtq_attr attr;
1a86b377aa2147 Eli Cohen  2020-08-04  1441  int err;
1a86b377aa2147 Eli Cohen  2020-08-04  1442  
3176e974a750d6 Si-Wei Liu 2020-10-01  1443  /* If the virtq object was 
destroyed, use the value saved at
3176e974a750d6 Si-Wei Liu 2020-10-01  1444   * the last minute of 
suspend_vq. This caters for userspace
3176e974a750d6 Si-Wei Liu 2020-10-01  1445   * that cares about emulating 
the index after vq is stopped.
3176e974a750d6 Si-Wei Liu 2020-10-01  1446   */
3176e974a750d6 Si-Wei Liu 2020-10-01  1447  if (!mvq->initialized) {
bc04d93ea30a0a Eli Cohen  2021-04-08  1448   

Re: [PATCH v1] vdpa/mlx5: Add support for running with virtio_vdpa

[kernel test robot]

Hi Eli,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on v5.13-rc3]
[cannot apply to linus/master v5.13-rc4 next-20210528]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Eli-Cohen/vdpa-mlx5-Add-support-for-running-with-virtio_vdpa/20210601-010404
base:c4681547bcce777daf576925a966ffa824edd09d
config: arc-allyesconfig (attached as .config)
compiler: arceb-elf-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# 
https://github.com/0day-ci/linux/commit/6f3930e43ca375bc3d3325f02350db3226b891cf
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Eli-Cohen/vdpa-mlx5-Add-support-for-running-with-virtio_vdpa/20210601-010404
git checkout 6f3930e43ca375bc3d3325f02350db3226b891cf
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

   In file included from include/linux/byteorder/big_endian.h:5,
from arch/arc/include/uapi/asm/byteorder.h:14,
from include/asm-generic/bitops/le.h:7,
from arch/arc/include/asm/bitops.h:373,
from include/linux/bitops.h:32,
from include/linux/kernel.h:12,
from include/linux/list.h:9,
from include/linux/module.h:12,
from drivers/vdpa/mlx5/net/mlx5_vnet.c:4:
   drivers/vdpa/mlx5/net/mlx5_vnet.c: In function 'mlx5_vdpa_set_status':
>> include/linux/compiler_types.h:140:35: error: 'struct 
>> mlx5_ifc_cmd_hca_cap_bits' has no member named 'umem_uid_0'
 140 | #define __compiler_offsetof(a, b) __builtin_offsetof(a, b)
 |   ^~
   include/uapi/linux/byteorder/big_endian.h:40:51: note: in definition of 
macro '__be32_to_cpu'
  40 | #define __be32_to_cpu(x) ((__force __u32)(__be32)(x))
 |   ^
   include/linux/stddef.h:17:32: note: in expansion of macro 
'__compiler_offsetof'
  17 | #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER)
 |^~~
   include/linux/mlx5/device.h:51:35: note: in expansion of macro 'offsetof'
  51 | #define __mlx5_bit_off(typ, fld) (offsetof(struct 
mlx5_ifc_##typ##_bits, fld))
 |   ^~~~
   include/linux/mlx5/device.h:53:34: note: in expansion of macro 
'__mlx5_bit_off'
  53 | #define __mlx5_dw_off(typ, fld) (__mlx5_bit_off(typ, fld) / 32)
 |  ^~
   include/linux/mlx5/device.h:96:1: note: in expansion of macro '__mlx5_dw_off'
  96 | __mlx5_dw_off(typ, fld))) >> __mlx5_dw_bit_off(typ, fld)) & \
 | ^
   include/linux/mlx5/device.h:1215:2: note: in expansion of macro 'MLX5_GET'
1215 |  MLX5_GET(cmd_hca_cap, mdev->caps.hca_cur[MLX5_CAP_GENERAL], cap)
 |  ^~~~
   drivers/vdpa/mlx5/net/mlx5_vnet.c:1788:7: note: in expansion of macro 
'MLX5_CAP_GEN'
1788 |   if (MLX5_CAP_GEN(mvdev->mdev, umem_uid_0)) {
 |   ^~~~
   In file included from include/linux/mlx5/driver.h:53,
from include/linux/mlx5/cq.h:36,
from drivers/vdpa/mlx5/net/mlx5_vnet.c:11:
>> include/linux/mlx5/device.h:50:57: error: 'struct mlx5_ifc_cmd_hca_cap_bits' 
>> has no member named 'umem_uid_0'
  50 | #define __mlx5_bit_sz(typ, fld) sizeof(__mlx5_nullp(typ)->fld)
 | ^~
   include/linux/mlx5/device.h:56:43: note: in expansion of macro 
'__mlx5_bit_sz'
  56 | #define __mlx5_dw_bit_off(typ, fld) (32 - __mlx5_bit_sz(typ, fld) - 
(__mlx5_bit_off(typ, fld) & 0x1f))
 |   ^
   include/linux/mlx5/device.h:96:30: note: in expansion of macro 
'__mlx5_dw_bit_off'
  96 | __mlx5_dw_off(typ, fld))) >> __mlx5_dw_bit_off(typ, fld)) & \
 |  ^
   include/linux/mlx5/device.h:1215:2: note: in expansion of macro 'MLX5_GET'
1215 |  MLX5_GET(cmd_hca_cap, mdev->caps.hca_cur[MLX5_CAP_GENERAL], cap)
 |  ^~~~
   drivers/vdpa/mlx5/net/mlx5_vnet.c:1788:7: note: in expansion of macro 
'MLX5_CAP_GEN'
1788 |   if (MLX5_CAP_GEN(mvdev->mdev, umem_uid_0)) {
 |   ^~~

Re: [PATCH v4 2/5] fuse: Call vfs_get_tree() for submounts

[kernel test robot]

Hi Greg,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on fuse/for-next]
[also build test WARNING on linux/master linus/master v5.13-rc2 next-20210521]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Greg-Kurz/virtiofs-propagate-sync-to-file-server/20210522-210652
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git 
for-next
config: sparc64-randconfig-p002-20210522 (attached as .config)
compiler: sparc64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# 
https://github.com/0day-ci/linux/commit/ee3cc45c5a2311efc82021bd5463271507bef828
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Greg-Kurz/virtiofs-propagate-sync-to-file-server/20210522-210652
git checkout ee3cc45c5a2311efc82021bd5463271507bef828
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=sparc64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   fs/fuse/dir.c: In function 'fuse_dentry_automount':
>> fs/fuse/dir.c:312:21: warning: variable 'fm' set but not used 
>> [-Wunused-but-set-variable]
 312 |  struct fuse_mount *fm;
 | ^~

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for FRAME_POINTER
   Depends on DEBUG_KERNEL && (M68K || UML || SUPERH) || 
ARCH_WANT_FRAME_POINTERS || MCOUNT
   Selected by
   - LOCKDEP && DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT && !MIPS && !PPC && !ARM 
&& !S390 && !MICROBLAZE && !ARC && !X86


vim +/fm +312 fs/fuse/dir.c

8fab010644363f Miklos Szeredi 2018-08-15  303  
bf109c64040f5b Max Reitz  2020-04-21  304  /*
bf109c64040f5b Max Reitz  2020-04-21  305   * Create a fuse_mount object 
with a new superblock (with path->dentry
bf109c64040f5b Max Reitz  2020-04-21  306   * as the root), and return that 
mount so it can be auto-mounted on
bf109c64040f5b Max Reitz  2020-04-21  307   * @path.
bf109c64040f5b Max Reitz  2020-04-21  308   */
bf109c64040f5b Max Reitz  2020-04-21  309  static struct vfsmount 
*fuse_dentry_automount(struct path *path)
bf109c64040f5b Max Reitz  2020-04-21  310  {
bf109c64040f5b Max Reitz  2020-04-21  311   struct fs_context *fsc;
bf109c64040f5b Max Reitz  2020-04-21 @312   struct fuse_mount *fm;
bf109c64040f5b Max Reitz  2020-04-21  313   struct vfsmount *mnt;
bf109c64040f5b Max Reitz  2020-04-21  314   struct fuse_inode *mp_fi = 
get_fuse_inode(d_inode(path->dentry));
bf109c64040f5b Max Reitz  2020-04-21  315   int err;
bf109c64040f5b Max Reitz  2020-04-21  316  
bf109c64040f5b Max Reitz  2020-04-21  317   fsc = 
fs_context_for_submount(path->mnt->mnt_sb->s_type, path->dentry);
bf109c64040f5b Max Reitz  2020-04-21  318   if (IS_ERR(fsc)) {
bf109c64040f5b Max Reitz  2020-04-21  319   err = PTR_ERR(fsc);
bf109c64040f5b Max Reitz  2020-04-21  320   goto out;
bf109c64040f5b Max Reitz  2020-04-21  321   }
bf109c64040f5b Max Reitz  2020-04-21  322  
ee3cc45c5a2311 Greg Kurz  2021-05-20  323   /*
ee3cc45c5a2311 Greg Kurz  2021-05-20  324* Hijack fsc->fs_private to 
pass the mount point inode to
ee3cc45c5a2311 Greg Kurz  2021-05-20  325* fuse_get_tree_submount(). It 
*must* be NULLified afterwards
ee3cc45c5a2311 Greg Kurz  2021-05-20  326* to avoid the inode pointer 
to be passed to kfree() when
ee3cc45c5a2311 Greg Kurz  2021-05-20  327* the context gets freed.
ee3cc45c5a2311 Greg Kurz  2021-05-20  328*/
ee3cc45c5a2311 Greg Kurz  2021-05-20  329   fsc->fs_private = mp_fi;
ee3cc45c5a2311 Greg Kurz  2021-05-20  330   err = vfs_get_tree(fsc);
ee3cc45c5a2311 Greg Kurz  2021-05-20  331   fsc->fs_private = NULL;
ee3cc45c5a2311 Greg Kurz  2021-05-20  332   if (err)
bf109c64040f5b Max Reitz  2020-04-21  333   goto out_put_fsc;
bf109c64040f5b Max Reitz  2020-04-21  334  
ee3cc45c5a2311 Greg Kurz  2021-05-20  335   fm = 
get_fuse_mount_super(fsc->root->d_sb);
bf109c64040f5b Max Reitz  2020-04-21  336  
bf109c64040f5b Max Reitz  2020-04-21  337   /* Create the submount */
bf109c64040f5b Max Reitz  2020-04-21  338   mnt = vfs_create_mount(fsc);
bf109c64040f5b Max Reitz  2020-04-21  339   if (IS_ERR(mnt)) {
bf109c64040f5b Max Reitz  2020-04-21  340   err = PTR_ERR(mnt);
bf109c64040f5b Ma

Re: [PATCH 11/19] drivers/hv: set up synic pages for intercept messages

[kernel test robot]

Hi Nuno,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on asm-generic/master]
[also build test WARNING on tip/master linux/master linus/master v5.13-rc3 
next-20210528]
[cannot apply to tip/x86/core]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Nuno-Das-Neves/Microsoft-Hypervisor-root-partition-ioctl-interface/20210529-064549
base:   https://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git 
master
config: x86_64-randconfig-b001-20210528 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 
bc6799f2f79f0ae87e9f1ebf9d25ba799fbd25a9)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# 
https://github.com/0day-ci/linux/commit/2761f56915a9f31c98287f68fd2b286b7ec16d41
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Nuno-Das-Neves/Microsoft-Hypervisor-root-partition-ioctl-interface/20210529-064549
git checkout 2761f56915a9f31c98287f68fd2b286b7ec16d41
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   In file included from :1:
   In file included from ./usr/include/linux/mshv.h:12:
>> ./usr/include/asm/hyperv-tlfs.h:751:14: warning: // comments are not allowed 
>> in this language [-Wcomment]
   __u8 cr8:4; // only set for exo partitions
   ^
   1 warning generated.

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org


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Re: [PATCH v4 2/5] fuse: Call vfs_get_tree() for submounts

[kernel test robot]

Hi Greg,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on fuse/for-next]
[also build test WARNING on linux/master linus/master v5.13-rc2 next-20210521]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Greg-Kurz/virtiofs-propagate-sync-to-file-server/20210522-210652
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git 
for-next
config: nds32-randconfig-r011-20210522 (attached as .config)
compiler: nds32le-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# 
https://github.com/0day-ci/linux/commit/ee3cc45c5a2311efc82021bd5463271507bef828
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Greg-Kurz/virtiofs-propagate-sync-to-file-server/20210522-210652
git checkout ee3cc45c5a2311efc82021bd5463271507bef828
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=nds32 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   fs/fuse/dir.c: In function 'fuse_dentry_automount':
>> fs/fuse/dir.c:312:21: warning: variable 'fm' set but not used 
>> [-Wunused-but-set-variable]
 312 |  struct fuse_mount *fm;
 | ^~


vim +/fm +312 fs/fuse/dir.c

8fab010644363f Miklos Szeredi 2018-08-15  303  
bf109c64040f5b Max Reitz  2020-04-21  304  /*
bf109c64040f5b Max Reitz  2020-04-21  305   * Create a fuse_mount object 
with a new superblock (with path->dentry
bf109c64040f5b Max Reitz  2020-04-21  306   * as the root), and return that 
mount so it can be auto-mounted on
bf109c64040f5b Max Reitz  2020-04-21  307   * @path.
bf109c64040f5b Max Reitz  2020-04-21  308   */
bf109c64040f5b Max Reitz  2020-04-21  309  static struct vfsmount 
*fuse_dentry_automount(struct path *path)
bf109c64040f5b Max Reitz  2020-04-21  310  {
bf109c64040f5b Max Reitz  2020-04-21  311   struct fs_context *fsc;
bf109c64040f5b Max Reitz  2020-04-21 @312   struct fuse_mount *fm;
bf109c64040f5b Max Reitz  2020-04-21  313   struct vfsmount *mnt;
bf109c64040f5b Max Reitz  2020-04-21  314   struct fuse_inode *mp_fi = 
get_fuse_inode(d_inode(path->dentry));
bf109c64040f5b Max Reitz  2020-04-21  315   int err;
bf109c64040f5b Max Reitz  2020-04-21  316  
bf109c64040f5b Max Reitz  2020-04-21  317   fsc = 
fs_context_for_submount(path->mnt->mnt_sb->s_type, path->dentry);
bf109c64040f5b Max Reitz  2020-04-21  318   if (IS_ERR(fsc)) {
bf109c64040f5b Max Reitz  2020-04-21  319   err = PTR_ERR(fsc);
bf109c64040f5b Max Reitz  2020-04-21  320   goto out;
bf109c64040f5b Max Reitz  2020-04-21  321   }
bf109c64040f5b Max Reitz  2020-04-21  322  
ee3cc45c5a2311 Greg Kurz  2021-05-20  323   /*
ee3cc45c5a2311 Greg Kurz  2021-05-20  324* Hijack fsc->fs_private to 
pass the mount point inode to
ee3cc45c5a2311 Greg Kurz  2021-05-20  325* fuse_get_tree_submount(). It 
*must* be NULLified afterwards
ee3cc45c5a2311 Greg Kurz  2021-05-20  326* to avoid the inode pointer 
to be passed to kfree() when
ee3cc45c5a2311 Greg Kurz  2021-05-20  327* the context gets freed.
ee3cc45c5a2311 Greg Kurz  2021-05-20  328*/
ee3cc45c5a2311 Greg Kurz  2021-05-20  329   fsc->fs_private = mp_fi;
ee3cc45c5a2311 Greg Kurz  2021-05-20  330   err = vfs_get_tree(fsc);
ee3cc45c5a2311 Greg Kurz  2021-05-20  331   fsc->fs_private = NULL;
ee3cc45c5a2311 Greg Kurz  2021-05-20  332   if (err)
bf109c64040f5b Max Reitz  2020-04-21  333   goto out_put_fsc;
bf109c64040f5b Max Reitz  2020-04-21  334  
ee3cc45c5a2311 Greg Kurz  2021-05-20  335   fm = 
get_fuse_mount_super(fsc->root->d_sb);
bf109c64040f5b Max Reitz  2020-04-21  336  
bf109c64040f5b Max Reitz  2020-04-21  337   /* Create the submount */
bf109c64040f5b Max Reitz  2020-04-21  338   mnt = vfs_create_mount(fsc);
bf109c64040f5b Max Reitz  2020-04-21  339   if (IS_ERR(mnt)) {
bf109c64040f5b Max Reitz  2020-04-21  340   err = PTR_ERR(mnt);
bf109c64040f5b Max Reitz  2020-04-21  341   goto out_put_fsc;
bf109c64040f5b Max Reitz  2020-04-21  342   }
bf109c64040f5b Max Reitz  2020-04-21  343   mntget(mnt);
bf109c64040f5b Max Reitz  2020-04-21  344   put_fs_context(fsc);
bf109c64040f5b Max Reitz  2020-04-21  345   return mnt;
bf109c64040f5b Max Reitz  2020-04-21  346  
bf109c64040f5b Max Reitz  2020-04-21  347  out_put_fsc:
bf109c64040

[vhost:vhost 29/31] drivers/crypto/virtio/virtio_crypto_core.c:516:25: error: initialization of 'int (*)(struct virtio_device *, void *)' from incompatible pointer type 'int (*)(struct virtio_device *

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost
head:   168a32fcc18a6f4afb7ea9d4760bf82becc67a43
commit: e397242b72e20f12139d895e4f10da736b2ae0a4 [29/31] virtio: allow passing 
config data from validate callback
config: openrisc-randconfig-r025-20210707 (attached as .config)
compiler: or1k-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# 
https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git/commit/?id=e397242b72e20f12139d895e4f10da736b2ae0a4
git remote add vhost 
https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git
git fetch --no-tags vhost vhost
git checkout e397242b72e20f12139d895e4f10da736b2ae0a4
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=openrisc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

>> drivers/crypto/virtio/virtio_crypto_core.c:516:25: error: initialization of 
>> 'int (*)(struct virtio_device *, void *)' from incompatible pointer type 
>> 'int (*)(struct virtio_device *)' [-Werror=incompatible-pointer-types]
 516 |  .probe   = virtcrypto_probe,
 | ^~~~
   drivers/crypto/virtio/virtio_crypto_core.c:516:25: note: (near 
initialization for 'virtio_crypto_driver.probe')
   cc1: some warnings being treated as errors


vim +516 drivers/crypto/virtio/virtio_crypto_core.c

dbaf0624ffa57a Gonglei 2016-12-15  509  
dbaf0624ffa57a Gonglei 2016-12-15  510  static struct virtio_driver 
virtio_crypto_driver = {
dbaf0624ffa57a Gonglei 2016-12-15  511  .driver.name = 
KBUILD_MODNAME,
dbaf0624ffa57a Gonglei 2016-12-15  512  .driver.owner= 
THIS_MODULE,
dbaf0624ffa57a Gonglei 2016-12-15  513  .feature_table   = features,
dbaf0624ffa57a Gonglei 2016-12-15  514  .feature_table_size  = 
ARRAY_SIZE(features),
dbaf0624ffa57a Gonglei 2016-12-15  515  .id_table= id_table,
dbaf0624ffa57a Gonglei 2016-12-15 @516  .probe   = 
virtcrypto_probe,
dbaf0624ffa57a Gonglei 2016-12-15  517  .remove  = 
virtcrypto_remove,
dbaf0624ffa57a Gonglei 2016-12-15  518  .config_changed = 
virtcrypto_config_changed,
dbaf0624ffa57a Gonglei 2016-12-15  519  #ifdef CONFIG_PM_SLEEP
dbaf0624ffa57a Gonglei 2016-12-15  520  .freeze = virtcrypto_freeze,
dbaf0624ffa57a Gonglei 2016-12-15  521  .restore = virtcrypto_restore,
dbaf0624ffa57a Gonglei 2016-12-15  522  #endif
dbaf0624ffa57a Gonglei 2016-12-15  523  };
dbaf0624ffa57a Gonglei 2016-12-15  524  

:: The code at line 516 was first introduced by commit
:: dbaf0624ffa57ae6e7d87a823185ccd9a7852d3c crypto: add virtio-crypto driver

:: TO: Gonglei 
:: CC: Michael S. Tsirkin 

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org


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[vhost:vhost 29/31] fs/fuse/virtio_fs.c:967:13: error: initialization of 'int (*)(struct virtio_device *, void *)' from incompatible pointer type 'int (*)(struct virtio_device *)'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost
head:   168a32fcc18a6f4afb7ea9d4760bf82becc67a43
commit: e397242b72e20f12139d895e4f10da736b2ae0a4 [29/31] virtio: allow passing 
config data from validate callback
config: microblaze-randconfig-r023-20210707 (attached as .config)
compiler: microblaze-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# 
https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git/commit/?id=e397242b72e20f12139d895e4f10da736b2ae0a4
git remote add vhost 
https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git
git fetch --no-tags vhost vhost
git checkout e397242b72e20f12139d895e4f10da736b2ae0a4
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross 
ARCH=microblaze 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

>> fs/fuse/virtio_fs.c:967:13: error: initialization of 'int (*)(struct 
>> virtio_device *, void *)' from incompatible pointer type 'int (*)(struct 
>> virtio_device *)' [-Werror=incompatible-pointer-types]
 967 |  .probe   = virtio_fs_probe,
 | ^~~
   fs/fuse/virtio_fs.c:967:13: note: (near initialization for 
'virtio_fs_driver.probe')
   cc1: some warnings being treated as errors
--
>> drivers/rpmsg/virtio_rpmsg_bus.c:1049:12: error: initialization of 'int 
>> (*)(struct virtio_device *, void *)' from incompatible pointer type 'int 
>> (*)(struct virtio_device *)' [-Werror=incompatible-pointer-types]
1049 |  .probe  = rpmsg_probe,
 |^~~
   drivers/rpmsg/virtio_rpmsg_bus.c:1049:12: note: (near initialization for 
'virtio_ipc_driver.probe')
   cc1: some warnings being treated as errors
--
>> drivers/virtio/virtio_input.c:401:25: error: initialization of 'int 
>> (*)(struct virtio_device *, void *)' from incompatible pointer type 'int 
>> (*)(struct virtio_device *)' [-Werror=incompatible-pointer-types]
 401 |  .probe   = virtinput_probe,
 | ^~~
   drivers/virtio/virtio_input.c:401:25: note: (near initialization for 
'virtio_input_driver.probe')
   cc1: some warnings being treated as errors
--
>> drivers/gpu/drm/virtio/virtgpu_drv.c:182:11: error: initialization of 'int 
>> (*)(struct virtio_device *, void *)' from incompatible pointer type 'int 
>> (*)(struct virtio_device *)' [-Werror=incompatible-pointer-types]
 182 |  .probe = virtio_gpu_probe,
 |   ^~~~
   drivers/gpu/drm/virtio/virtgpu_drv.c:182:11: note: (near initialization for 
'virtio_gpu_driver.probe')
   cc1: some warnings being treated as errors


vim +967 fs/fuse/virtio_fs.c

a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  960  
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  961  static struct virtio_driver 
virtio_fs_driver = {
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  962  .driver.name
= KBUILD_MODNAME,
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  963  .driver.owner   
= THIS_MODULE,
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  964  .id_table   
= id_table,
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  965  .feature_table  
= feature_table,
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  966  .feature_table_size 
= ARRAY_SIZE(feature_table),
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12 @967  .probe  
= virtio_fs_probe,
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  968  .remove 
= virtio_fs_remove,
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  969  #ifdef CONFIG_PM_SLEEP
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  970  .freeze 
= virtio_fs_freeze,
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  971  .restore
= virtio_fs_restore,
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  972  #endif
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  973  };
a62a8ef9d97da2 Stefan Hajnoczi 2018-06-12  974  

:: The code at line 967 was first introduced by commit
:: a62a8ef9d97da23762a588592c8b8eb50a8deb6a virtio-fs: add virtiofs 
filesystem

:: TO: Stefan Hajnoczi 
:: CC: Miklos Szeredi 

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Re: [PATCH 3/3] vhost: pass kthread user to check RLIMIT_NPROC

[kernel test robot]

Hi Mike,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on vhost/linux-next]
[also build test WARNING on linux/master linus/master v5.13-rc7]
[cannot apply to next-20210623]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Mike-Christie/kthread-pass-in-user-and-check-RLIMIT_NPROC/20210624-110925
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
config: riscv-randconfig-s032-20210622 (attached as .config)
compiler: riscv64-linux-gcc (GCC) 9.3.0
reproduce:
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.3-341-g8af24329-dirty
# 
https://github.com/0day-ci/linux/commit/daae0f4bb5ef7264d67cab20da37192754f885b8
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Mike-Christie/kthread-pass-in-user-and-check-RLIMIT_NPROC/20210624-110925
git checkout daae0f4bb5ef7264d67cab20da37192754f885b8
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=riscv 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 


sparse warnings: (new ones prefixed by >>)
>> drivers/vhost/vhost.c:599:57: sparse: sparse: dereference of noderef 
>> expression

vim +599 drivers/vhost/vhost.c

   581  
   582  /* Caller should have device mutex */
   583  long vhost_dev_set_owner(struct vhost_dev *dev)
   584  {
   585  struct task_struct *worker;
   586  int err;
   587  
   588  /* Is there an owner already? */
   589  if (vhost_dev_has_owner(dev)) {
   590  err = -EBUSY;
   591  goto err_mm;
   592  }
   593  
   594  vhost_attach_mm(dev);
   595  
   596  dev->kcov_handle = kcov_common_handle();
   597  if (dev->use_worker) {
   598  worker = kthread_create_for_user(vhost_worker, dev,
 > 599   
 > current->real_cred->user,
   600   "vhost-%d", 
current->pid);
   601  if (IS_ERR(worker)) {
   602  err = PTR_ERR(worker);
   603  goto err_worker;
   604  }
   605  
   606  dev->worker = worker;
   607  wake_up_process(worker); /* avoid contributing to 
loadavg */
   608  
   609  err = vhost_attach_cgroups(dev);
   610  if (err)
   611  goto err_cgroup;
   612  }
   613  
   614  err = vhost_dev_alloc_iovecs(dev);
   615  if (err)
   616  goto err_cgroup;
   617  
   618  return 0;
   619  err_cgroup:
   620  if (dev->worker) {
   621  kthread_stop(dev->worker);
   622  dev->worker = NULL;
   623  }
   624  err_worker:
   625  vhost_detach_mm(dev);
   626  dev->kcov_handle = 0;
   627  err_mm:
   628  return err;
   629  }
   630  EXPORT_SYMBOL_GPL(vhost_dev_set_owner);
   631  

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Re: [PATCH 1/3] kthread: allow caller to pass in user_struct

[kernel test robot]

Hi Mike,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on vhost/linux-next]
[also build test WARNING on linux/master linus/master v5.13-rc7]
[cannot apply to next-20210623]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Mike-Christie/kthread-pass-in-user-and-check-RLIMIT_NPROC/20210624-110925
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
config: um-x86_64_defconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# 
https://github.com/0day-ci/linux/commit/9b4a744e588ed25e06eed415174977e7533b24dc
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Mike-Christie/kthread-pass-in-user-and-check-RLIMIT_NPROC/20210624-110925
git checkout 9b4a744e588ed25e06eed415174977e7533b24dc
# save the attached .config to linux build tree
make W=1 ARCH=um SUBARCH=x86_64

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   cc1: warning: arch/um/include/uapi: No such file or directory 
[-Wmissing-include-dirs]
   kernel/kthread.c: In function 'kthread_create_for_user':
>> kernel/kthread.c:466:6: warning: function 'kthread_create_for_user' might be 
>> a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format]
 466 |  namefmt, args);
 |  ^~~


vim +466 kernel/kthread.c

   443  
   444  /**
   445   * kthread_create_for_user - create a kthread and check @user's 
RLIMIT_NPROC
   446   * @threadfn: the function to run until signal_pending(current).
   447   * @data: data ptr for @threadfn.
   448   * @user: user_struct that will have its RLIMIT_NPROC checked
   449   * @namefmt: printf-style name for the thread.
   450   *
   451   * This will create a kthread on the current node, leaving it in the 
stopped
   452   * state.  This is just a helper for kthread_create_on_node() that will 
check
   453   * @user's process count against its RLIMIT_NPROC.  See the
   454   * kthread_create_on_node() documentation for more details.
   455   */
   456  struct task_struct *kthread_create_for_user(int (*threadfn)(void *data),
   457  void *data,
   458  struct user_struct *user,
   459  const char namefmt[], ...)
   460  {
   461  struct task_struct *task;
   462  va_list args;
   463  
   464  va_start(args, namefmt);
   465  task = __kthread_create_on_node(threadfn, data, NUMA_NO_NODE, 
user,
 > 466  namefmt, args);
   467  va_end(args);
   468  
   469  return task;
   470  }
   471  EXPORT_SYMBOL(kthread_create_for_user);
   472  

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Re: [PATCH 1/3] drm/bochs: Move to tiny/

[kernel test robot]

Hi Thomas,

I love your patch! Perhaps something to improve:

[auto build test WARNING on next-20210630]
[cannot apply to linus/master v5.13 v5.13-rc7 v5.13-rc6 v5.13]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Thomas-Zimmermann/drm-bochs-Move-to-tiny-and-simplify/20210630-220827
base:2e0046650f0f192a84a1793f0dc2f0991ed9a3e4
config: i386-randconfig-s001-20210630 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.3-341-g8af24329-dirty
# 
https://github.com/0day-ci/linux/commit/b6c460f7ad814dab0a55db296162fecc5828bc87
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Thomas-Zimmermann/drm-bochs-Move-to-tiny-and-simplify/20210630-220827
git checkout b6c460f7ad814dab0a55db296162fecc5828bc87
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir 
ARCH=i386 SHELL=/bin/bash drivers/gpu/drm/tiny/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 


sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/tiny/bochs.c:542:36: sparse: sparse: symbol 
>> 'bochs_mode_funcs' was not declared. Should it be static?

Please review and possibly fold the followup patch.

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[RFC PATCH] drm/bochs: bochs_mode_funcs can be static

[kernel test robot]

drivers/gpu/drm/tiny/bochs.c:542:36: warning: symbol 'bochs_mode_funcs' was not 
declared. Should it be static?

Reported-by: kernel test robot 
Signed-off-by: kernel test robot 
---
 bochs.c |2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tiny/bochs.c b/drivers/gpu/drm/tiny/bochs.c
index edcd31db5b9ce..067e043de437d 100644
--- a/drivers/gpu/drm/tiny/bochs.c
+++ b/drivers/gpu/drm/tiny/bochs.c
@@ -539,7 +539,7 @@ bochs_gem_fb_create(struct drm_device *dev, struct drm_file 
*file,
return drm_gem_fb_create(dev, file, mode_cmd);
 }
 
-const struct drm_mode_config_funcs bochs_mode_funcs = {
+static const struct drm_mode_config_funcs bochs_mode_funcs = {
.fb_create = bochs_gem_fb_create,
.mode_valid = drm_vram_helper_mode_valid,
.atomic_check = drm_atomic_helper_check,
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Re: [PATCH v11] i2c: virtio: add a virtio i2c frontend driver

[kernel test robot]

Hi Jie,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on wsa/i2c/for-next]
[also build test ERROR on linux/master linus/master v5.13 next-20210630]
[cannot apply to vhost/linux-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Jie-Deng/i2c-virtio-add-a-virtio-i2c-frontend-driver/20210701-112619
base:   https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git 
i2c/for-next
config: i386-randconfig-c021-20210630 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# 
https://github.com/0day-ci/linux/commit/e8dedd2a8577148d7655d0affe35adf34efbbf15
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Jie-Deng/i2c-virtio-add-a-virtio-i2c-frontend-driver/20210701-112619
git checkout e8dedd2a8577148d7655d0affe35adf34efbbf15
# save the attached .config to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

   In file included from :32:
>> ./usr/include/linux/virtio_i2c.h:12:10: fatal error: linux/bits.h: No such 
>> file or directory
  12 | #include 
 |  ^~
   compilation terminated.

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Re: [PATCH v11] i2c: virtio: add a virtio i2c frontend driver

[kernel test robot]

Hi Jie,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on wsa/i2c/for-next]
[also build test ERROR on linux/master linus/master v5.13 next-20210630]
[cannot apply to vhost/linux-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Jie-Deng/i2c-virtio-add-a-virtio-i2c-frontend-driver/20210701-112619
base:   https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git 
i2c/for-next
config: x86_64-randconfig-r012-20210630 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 
e7e71e9454ed76c1b3d8140170b5333c28bef1be)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# 
https://github.com/0day-ci/linux/commit/e8dedd2a8577148d7655d0affe35adf34efbbf15
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Jie-Deng/i2c-virtio-add-a-virtio-i2c-frontend-driver/20210701-112619
git checkout e8dedd2a8577148d7655d0affe35adf34efbbf15
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir 
ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All errors (new ones prefixed by >>):

   In file included from :1:
>> ./usr/include/linux/virtio_i2c.h:12:10: fatal error: 'linux/bits.h' file not 
>> found
   #include 
^~
   1 error generated.

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Re: [PATCH 2/3] vDPA/ifcvf: implement management netlink framework for ifcvf

[kernel test robot]

Hi Zhu,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.13 next-20210630]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Zhu-Lingshan/vDPA-ifcvf-implement-management-netlink-framework/20210630-162940
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
007b350a58754a93ca9fe50c498cc27780171153
config: x86_64-randconfig-a015-20210630 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 
8d21d5472501460933e78aead04cf59579025ba4)
reproduce (this is a W=1 build):
wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# 
https://github.com/0day-ci/linux/commit/7ea782fbd896e1a5b3c01b29f4929773748a525f
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Zhu-Lingshan/vDPA-ifcvf-implement-management-netlink-framework/20210630-162940
git checkout 7ea782fbd896e1a5b3c01b29f4929773748a525f
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

>> drivers/vdpa/ifcvf/ifcvf_main.c:612:14: warning: variable 'adapter' is 
>> uninitialized when used here [-Wuninitialized]
   put_device(>vdpa.dev);
   ^~~
   drivers/vdpa/ifcvf/ifcvf_main.c:546:31: note: initialize the variable 
'adapter' to silence this warning
   struct ifcvf_adapter *adapter;
^
 = NULL
   1 warning generated.


vim +/adapter +612 drivers/vdpa/ifcvf/ifcvf_main.c

7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
541  
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
542  static int ifcvf_probe(struct pci_dev *pdev, const struct pci_device_id 
*id)
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
543  {
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
544  struct ifcvf_vdpa_mgmt_dev *ifcvf_mgmt_dev;
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
545  struct device *dev = >dev;
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
546  struct ifcvf_adapter *adapter;
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
547  u32 dev_type;
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
548  int ret;
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
549  
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
550  ifcvf_mgmt_dev = kzalloc(sizeof(struct ifcvf_vdpa_mgmt_dev), 
GFP_KERNEL);
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
551  if (!ifcvf_mgmt_dev) {
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
552  IFCVF_ERR(pdev, "Failed to alloc memory for the vDPA 
management device\n");
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
553  return -ENOMEM;
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
554  }
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
555  
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
556  dev_type = get_dev_type(pdev);
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
557  switch (dev_type) {
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
558  case VIRTIO_ID_NET:
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
559  ifcvf_mgmt_dev->mdev.id_table = id_table_net;
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
560  break;
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
561  case VIRTIO_ID_BLOCK:
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
562  ifcvf_mgmt_dev->mdev.id_table = id_table_blk;
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
563  break;
7ea782fbd896e1 drivers/vdpa/ifcvf/ifcvf_main.cZhu Lingshan 2021-06-30  
564  default:
7ea782

Re: [PATCH 1/2] vDPA/ifcvf: record virtio notify base

[kernel test robot]

Hi Zhu,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.12 next-20210428]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:
https://github.com/0day-ci/linux/commits/Zhu-Lingshan/vDPA-ifcvf-implement-doorbell-mapping-feature/20210428-162843
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
acd3d28594536e9096c1ea76c5867d8a68babef6
config: x86_64-randconfig-s022-20210428 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.3-341-g8af24329-dirty
# 
https://github.com/0day-ci/linux/commit/79474dca6dd202684180ad6ea88b5f73fc4a87c2
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review 
Zhu-Lingshan/vDPA-ifcvf-implement-doorbell-mapping-feature/20210428-162843
git checkout 79474dca6dd202684180ad6ea88b5f73fc4a87c2
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 
ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 


sparse warnings: (new ones prefixed by >>)
>> drivers/vdpa/ifcvf/ifcvf_base.c:136:80: sparse: sparse: restricted __le32 
>> degrades to integer

vim +136 drivers/vdpa/ifcvf/ifcvf_base.c

98  
99  int ifcvf_init_hw(struct ifcvf_hw *hw, struct pci_dev *pdev)
   100  {
   101  struct virtio_pci_cap cap;
   102  u16 notify_off;
   103  int ret;
   104  u8 pos;
   105  u32 i;
   106  
   107  ret = pci_read_config_byte(pdev, PCI_CAPABILITY_LIST, );
   108  if (ret < 0) {
   109  IFCVF_ERR(pdev, "Failed to read PCI capability list\n");
   110  return -EIO;
   111  }
   112  
   113  while (pos) {
   114  ret = ifcvf_read_config_range(pdev, (u32 *),
   115sizeof(cap), pos);
   116  if (ret < 0) {
   117  IFCVF_ERR(pdev,
   118"Failed to get PCI capability at 
%x\n", pos);
   119  break;
   120  }
   121  
   122  if (cap.cap_vndr != PCI_CAP_ID_VNDR)
   123  goto next;
   124  
   125  switch (cap.cfg_type) {
   126  case VIRTIO_PCI_CAP_COMMON_CFG:
   127  hw->common_cfg = get_cap_addr(hw, );
   128  IFCVF_DBG(pdev, "hw->common_cfg = %p\n",
   129hw->common_cfg);
   130  break;
   131  case VIRTIO_PCI_CAP_NOTIFY_CFG:
   132  pci_read_config_dword(pdev, pos + sizeof(cap),
   133
>notify_off_multiplier);
   134  hw->notify_bar = cap.bar;
   135  hw->notify_base = get_cap_addr(hw, );
 > 136  hw->notify_pa = pci_resource_start(pdev, 
 > cap.bar) + cap.offset;
   137  IFCVF_DBG(pdev, "hw->notify_base = %p\n",
   138hw->notify_base);
   139  break;
   140  case VIRTIO_PCI_CAP_ISR_CFG:
   141  hw->isr = get_cap_addr(hw, );
   142  IFCVF_DBG(pdev, "hw->isr = %p\n", hw->isr);
   143  break;
   144  case VIRTIO_PCI_CAP_DEVICE_CFG:
   145  hw->net_cfg = get_cap_addr(hw, );
   146  IFCVF_DBG(pdev, "hw->net_cfg = %p\n", 
hw->net_cfg);
   147  break;
   148  }
   149  
   150  next:
   151  pos = cap.cap_next;
   152  }
   153  
   154  if (hw->common_cfg == NULL || hw->notify_base == NULL ||
   155  hw->isr == NULL || hw->net_cfg == NULL) {
   156  IFCVF_ERR(pdev, "Incomplete PCI capabilities\n");
   157  return -EIO;
   158  }
   159  
   160  for (i = 0; i < IFCVF_MAX_QUEUE_PAIRS * 2; i++) {
   161  ifc_iowrite16(i, >common_cfg->queue_select);
   162  notify_off = 
ifc_ioread16(>common_cfg->queue_notify_off);
   163  hw->vring[i].notify_addr = hw->notify_base +
   164  notify_off * hw->notify_off_multiplier;
   165  }
   166  
   167  hw->lm_c