[kbuild] [mcgrof-next:20210820-add-disk-error-handling-next 89/90] drivers/block/floppy.c:4540 floppy_probe() error: uninitialized symbol 'err'.
CC: kbuild-...@lists.01.org
CC: linux-ker...@vger.kernel.org
TO: Luis Chamberlain
tree: https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git
20210820-add-disk-error-handling-next
head: 9a845121f1e14033032e7cbb772ca21f24be0cb3
commit: b08dbe6faf0fc2f3589d5e9b191899b7d9ab0b6d [89/90] block: make
__register_blkdev() return an error
:: branch date: 6 days ago
:: commit date: 6 days ago
config: i386-randconfig-m021-20210827 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
Reported-by: Dan Carpenter
New smatch warnings:
drivers/block/floppy.c:4540 floppy_probe() error: uninitialized symbol 'err'.
Old smatch warnings:
drivers/block/floppy.c:2794 redo_fd_request() error: we previously assumed
'current_req' could be null (see line 2782)
drivers/block/floppy.c:3543 fd_locked_ioctl() error: uninitialized symbol
'outparam'.
vim +/err +4540 drivers/block/floppy.c
302cfee150291c Christoph Hellwig 2020-10-29 4519
b08dbe6faf0fc2 Luis Chamberlain 2021-07-14 4520 static int
floppy_probe(dev_t dev)
302cfee150291c Christoph Hellwig 2020-10-29 4521 {
302cfee150291c Christoph Hellwig 2020-10-29 4522 unsigned int drive =
(MINOR(dev) & 3) | ((MINOR(dev) & 0x80) >> 5);
302cfee150291c Christoph Hellwig 2020-10-29 4523 unsigned int type =
(MINOR(dev) >> 2) & 0x1f;
b08dbe6faf0fc2 Luis Chamberlain 2021-07-14 4524 int err;
302cfee150291c Christoph Hellwig 2020-10-29 4525
302cfee150291c Christoph Hellwig 2020-10-29 4526 if (drive >= N_DRIVE ||
!floppy_available(drive) ||
302cfee150291c Christoph Hellwig 2020-10-29 4527 type >=
ARRAY_SIZE(floppy_type))
b08dbe6faf0fc2 Luis Chamberlain 2021-07-14 4528 return -EINVAL;
302cfee150291c Christoph Hellwig 2020-10-29 4529
302cfee150291c Christoph Hellwig 2020-10-29 4530
mutex_lock(_probe_lock);
302cfee150291c Christoph Hellwig 2020-10-29 4531 if
(!disks[drive][type]) {
b08dbe6faf0fc2 Luis Chamberlain 2021-07-14 4532 if
(floppy_alloc_disk(drive, type) == 0) {
b08dbe6faf0fc2 Luis Chamberlain 2021-07-14 4533 err =
add_disk(disks[drive][type]);
b08dbe6faf0fc2 Luis Chamberlain 2021-07-14 4534 if (err)
b08dbe6faf0fc2 Luis Chamberlain 2021-07-14 4535
blk_cleanup_disk(disks[drive][type]);
b08dbe6faf0fc2 Luis Chamberlain 2021-07-14 4536 }
302cfee150291c Christoph Hellwig 2020-10-29 4537 }
302cfee150291c Christoph Hellwig 2020-10-29 4538
mutex_unlock(_probe_lock);
b08dbe6faf0fc2 Luis Chamberlain 2021-07-14 4539
b08dbe6faf0fc2 Luis Chamberlain 2021-07-14 @4540 return err;
^1da177e4c3f41 Linus Torvalds2005-04-16 4541 }
^1da177e4c3f41 Linus Torvalds2005-04-16 4542
---
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https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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[kbuild] [linux-next:master 2736/10638] drivers/net/can/usb/peak_usb/pcan_usb.c:523 pcan_usb_decode_error() error: we previously assumed 'cf' could be null (see line 503)
CC: kbuild-...@lists.01.org
CC: Linux Memory Management List
TO: Stephane Grosjean
CC: "Marc Kleine-Budde"
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
master
head: 88fac11862d38306dd0d2398015744877140390d
commit: c11dcee758302702a83c6e85e4c4c3d9af42d2b3 [2736/10638] can: peak_usb:
pcan_usb_decode_error(): upgrade handling of bus state changes
:: branch date:
:: commit date: 5 weeks ago
config: i386-randconfig-m021-20210827 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
Reported-by: Dan Carpenter
smatch warnings:
drivers/net/can/usb/peak_usb/pcan_usb.c:523 pcan_usb_decode_error() error: we
previously assumed 'cf' could be null (see line 503)
vim +/cf +523 drivers/net/can/usb/peak_usb/pcan_usb.c
46be265d338833 Stephane Grosjean 2012-03-02 449
46be265d338833 Stephane Grosjean 2012-03-02 450 static int
pcan_usb_decode_error(struct pcan_usb_msg_context *mc, u8 n,
46be265d338833 Stephane Grosjean 2012-03-02 451
u8 status_len)
46be265d338833 Stephane Grosjean 2012-03-02 452 {
46be265d338833 Stephane Grosjean 2012-03-02 453struct sk_buff *skb;
46be265d338833 Stephane Grosjean 2012-03-02 454struct can_frame *cf;
c11dcee7583027 Stephane Grosjean 2021-07-15 455enum can_state
new_state = CAN_STATE_ERROR_ACTIVE;
46be265d338833 Stephane Grosjean 2012-03-02 456
46be265d338833 Stephane Grosjean 2012-03-02 457/* ignore this error
until 1st ts received */
46be265d338833 Stephane Grosjean 2012-03-02 458if (n ==
PCAN_USB_ERROR_QOVR)
46be265d338833 Stephane Grosjean 2012-03-02 459if
(!mc->pdev->time_ref.tick_count)
46be265d338833 Stephane Grosjean 2012-03-02 460return
0;
46be265d338833 Stephane Grosjean 2012-03-02 461
c11dcee7583027 Stephane Grosjean 2021-07-15 462/* allocate an skb to
store the error frame */
c11dcee7583027 Stephane Grosjean 2021-07-15 463skb =
alloc_can_err_skb(mc->netdev, );
46be265d338833 Stephane Grosjean 2012-03-02 464
c11dcee7583027 Stephane Grosjean 2021-07-15 465if (n &
PCAN_USB_ERROR_RXQOVR) {
c11dcee7583027 Stephane Grosjean 2021-07-15 466/* data overrun
interrupt */
c11dcee7583027 Stephane Grosjean 2021-07-15 467
netdev_dbg(mc->netdev, "data overrun interrupt\n");
c11dcee7583027 Stephane Grosjean 2021-07-15 468
mc->netdev->stats.rx_over_errors++;
c11dcee7583027 Stephane Grosjean 2021-07-15 469
mc->netdev->stats.rx_errors++;
c11dcee7583027 Stephane Grosjean 2021-07-15 470if (cf) {
c11dcee7583027 Stephane Grosjean 2021-07-15 471
cf->can_id |= CAN_ERR_CRTL;
c11dcee7583027 Stephane Grosjean 2021-07-15 472
cf->data[1] |= CAN_ERR_CRTL_RX_OVERFLOW;
46be265d338833 Stephane Grosjean 2012-03-02 473}
46be265d338833 Stephane Grosjean 2012-03-02 474}
46be265d338833 Stephane Grosjean 2012-03-02 475
c11dcee7583027 Stephane Grosjean 2021-07-15 476if (n &
PCAN_USB_ERROR_TXQFULL)
c11dcee7583027 Stephane Grosjean 2021-07-15 477
netdev_dbg(mc->netdev, "device Tx queue full)\n");
c11dcee7583027 Stephane Grosjean 2021-07-15 478
46be265d338833 Stephane Grosjean 2012-03-02 479if (n &
PCAN_USB_ERROR_BUS_OFF) {
46be265d338833 Stephane Grosjean 2012-03-02 480new_state =
CAN_STATE_BUS_OFF;
c11dcee7583027 Stephane Grosjean 2021-07-15 481} else if (n &
PCAN_USB_ERROR_BUS_HEAVY) {
c11dcee7583027 Stephane Grosjean 2021-07-15 482new_state =
((mc->pdev->bec.txerr >= 128) ||
c11dcee7583027 Stephane Grosjean 2021-07-15 483
(mc->pdev->bec.rxerr >= 128)) ?
c11dcee7583027 Stephane Grosjean 2021-07-15 484
CAN_STATE_ERROR_PASSIVE :
c11dcee7583027 Stephane Grosjean 2021-07-15 485
CAN_STATE_ERROR_WARNING;
c11dcee7583027 Stephane Grosjean 2021-07-15 486} else {
c11dcee7583027 Stephane Grosjean 2021-07-15 487new_state =
CAN_STATE_ERROR_ACTIVE;
46be265d338833 Stephane Grosjean 2012-03-02 488}
46be265d338833 Stephane Grosjean 2012-03-02 489
c11dcee7583027 Stephane Grosjean 2021-07-15 490/* handle change of
state */
c11dcee7583027 Stephane Grosjean 2021-07-15 491if (new_state !=
mc->pdev->dev.can.state) {
c11dcee7583027 Stephane Grosjean 2021-07-15 492enum can_state
tx_state =
c11dcee7583027 Stephane Grosjean 2021-07-15 493
(mc->pdev->bec.txerr >= mc->pdev->bec.rxerr) ?
c11dcee7583027 Stephane Grosjean 2021-07-15 494
new_state : 0;
c11dcee7583027 Stephane Grosjean 2021-07-15 495enum can_state
rx_state =
c11dcee7583027
[kbuild] [djwong-xfs:vectorized-scrub 245/358] fs/xfs/libxfs/xfs_alloc.c:2564:3: warning: Value stored to 'agno' is never read [clang-analyzer-deadcode.DeadStores]
CC: l...@lists.linux.dev
CC: kbuild-...@lists.01.org
CC: "Darrick J. Wong"
CC: linux-ker...@vger.kernel.org
TO: "Darrick J. Wong"
tree: https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git
vectorized-scrub
head: f7b5acb4dc5e8a3845296b4662732360360b776e
commit: b5e92cc0883a72a43c262daa8faecce72e21 [245/358] xfs: support logging
EFIs for realtime extents
:: branch date: 21 hours ago
:: commit date: 21 hours ago
config: riscv-randconfig-c006-20210826 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project
ea08c4cd1c0869ec5024a8bb3f5cdf06ab03ae83)
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 riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
#
https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git/commit/?id=b5e92cc0883a72a43c262daa8faecce72e21
git remote add djwong-xfs
https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git
git fetch --no-tags djwong-xfs vectorized-scrub
git checkout b5e92cc0883a72a43c262daa8faecce72e21
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv
clang-analyzer
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
clang-analyzer warnings: (new ones prefixed by >>)
^
include/linux/cpumask.h:241:2: note: expanded from macro 'for_each_cpu'
for ((cpu) = -1;\
^
kernel/sched/topology.c:2152:2: note: Assuming 'i' is < 'nr_cpu_ids'
for_each_cpu(i, cpu_map) {
^
include/linux/cpumask.h:243:3: note: expanded from macro 'for_each_cpu'
(cpu) < nr_cpu_ids;)
^~
kernel/sched/topology.c:2152:2: note: Loop condition is true. Entering loop
body
for_each_cpu(i, cpu_map) {
^
include/linux/cpumask.h:241:2: note: expanded from macro 'for_each_cpu'
for ((cpu) = -1;\
^
kernel/sched/topology.c:2153:14: note: Loop condition is false. Exiting loop
for (sd = *per_cpu_ptr(d.sd, i); sd; sd = sd->parent) {
^
include/linux/percpu-defs.h:235:2: note: expanded from macro 'per_cpu_ptr'
__verify_pcpu_ptr(ptr); \
^
include/linux/percpu-defs.h:217:37: note: expanded from macro
'__verify_pcpu_ptr'
#define __verify_pcpu_ptr(ptr) \
^
kernel/sched/topology.c:2153:3: note: Loop condition is true. Entering loop
body
for (sd = *per_cpu_ptr(d.sd, i); sd; sd = sd->parent) {
^
kernel/sched/topology.c:2155:8: note: Assuming the condition is false
if (sd->flags & SD_OVERLAP) {
^~
kernel/sched/topology.c:2155:4: note: Taking false branch
if (sd->flags & SD_OVERLAP) {
^
kernel/sched/topology.c:2159:9: note: Calling 'build_sched_groups'
if (build_sched_groups(sd, i))
^
kernel/sched/topology.c:1194:37: note: 'last' initialized to a null pointer
value
struct sched_group *first = NULL, *last = NULL;
^~~~
kernel/sched/topology.c:1200:2: note: Assuming 'debug_locks' is 0
lockdep_assert_held(_domains_mutex);
^
include/linux/lockdep.h:310:11: note: expanded from macro
'lockdep_assert_held'
WARN_ON(debug_locks && \
^~~
include/asm-generic/bug.h:121:25: note: expanded from macro 'WARN_ON'
int __ret_warn_on = !!(condition); \
^
kernel/sched/topology.c:1200:2: note: Left side of '&&' is false
lockdep_assert_held(_domains_mutex);
^
include/linux/lockdep.h:310:23: note: expanded from macro
'lockdep_assert_held'
WARN_ON(debug_locks && \
^
kernel/sched/topology.c:1200:2: note: Taking false branch
lockdep_assert_held(_domains_mutex);
^
include/linux/lockdep.h:310:3: note: expanded from macro
'lockdep_assert_held'
WARN_ON(debug_locks &&
[kbuild] [intel-linux-intel-lts:5.10/yocto 9477/15122] drivers/net/pcs/pcs-xpcs.c:843:13: warning: Identical inner 'return' condition is always true. [identicalInnerCondition]
CC: kbuild-...@lists.01.org
TO: Ong Boon Leong
CC: Zhou Furong
tree: https://github.com/intel/linux-intel-lts.git 5.10/yocto
head: cef410ba7c738624a98b855c955a0092789b224e
commit: 4d8e49ce43d3128c2861f28619b7f3e682f95574 [9477/15122] net: pcs: add C37
SGMII AN support for intel mGbE controller
:: branch date: 7 days ago
:: commit date: 3 months ago
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
cppcheck possible warnings: (new ones prefixed by >>, may not real problems)
>> drivers/net/pcs/pcs-xpcs.c:843:13: warning: Identical inner 'return'
>> condition is always true. [identicalInnerCondition]
return id | ret;
^
drivers/net/pcs/pcs-xpcs.c:842:9: note: outer condition: id|ret
if (id | ret)
^
drivers/net/pcs/pcs-xpcs.c:843:13: note: identical inner condition: id|ret
return id | ret;
^
drivers/net/pcs/pcs-xpcs.c:858:13: warning: Identical inner 'return'
condition is always true. [identicalInnerCondition]
return id | ret;
^
drivers/net/pcs/pcs-xpcs.c:857:9: note: outer condition: id|ret
if (id | ret)
^
drivers/net/pcs/pcs-xpcs.c:858:13: note: identical inner condition: id|ret
return id | ret;
^
vim +/return +843 drivers/net/pcs/pcs-xpcs.c
fcb26bd2b6cab5 drivers/net/phy/mdio-xpcs.c Jose Abreu 2020-03-09 824
fcb26bd2b6cab5 drivers/net/phy/mdio-xpcs.c Jose Abreu 2020-03-09 825
static u32 xpcs_get_id(struct mdio_xpcs_args *xpcs)
fcb26bd2b6cab5 drivers/net/phy/mdio-xpcs.c Jose Abreu 2020-03-09 826 {
fcb26bd2b6cab5 drivers/net/phy/mdio-xpcs.c Jose Abreu 2020-03-09 827
int ret;
fcb26bd2b6cab5 drivers/net/phy/mdio-xpcs.c Jose Abreu 2020-03-09 828
u32 id;
fcb26bd2b6cab5 drivers/net/phy/mdio-xpcs.c Jose Abreu 2020-03-09 829
4d8e49ce43d312 drivers/net/pcs/pcs-xpcs.c Ong Boon Leong 2021-03-15 830
/* First, search C73 PCS using PCS MMD */
fcb26bd2b6cab5 drivers/net/phy/mdio-xpcs.c Jose Abreu 2020-03-09 831
ret = xpcs_read(xpcs, MDIO_MMD_PCS, MII_PHYSID1);
fcb26bd2b6cab5 drivers/net/phy/mdio-xpcs.c Jose Abreu 2020-03-09 832
if (ret < 0)
fcb26bd2b6cab5 drivers/net/phy/mdio-xpcs.c Jose Abreu 2020-03-09 833
return 0x;
fcb26bd2b6cab5 drivers/net/phy/mdio-xpcs.c Jose Abreu 2020-03-09 834
fcb26bd2b6cab5 drivers/net/phy/mdio-xpcs.c Jose Abreu 2020-03-09 835
id = ret << 16;
fcb26bd2b6cab5 drivers/net/phy/mdio-xpcs.c Jose Abreu 2020-03-09 836
fcb26bd2b6cab5 drivers/net/phy/mdio-xpcs.c Jose Abreu 2020-03-09 837
ret = xpcs_read(xpcs, MDIO_MMD_PCS, MII_PHYSID2);
fcb26bd2b6cab5 drivers/net/phy/mdio-xpcs.c Jose Abreu 2020-03-09 838
if (ret < 0)
fcb26bd2b6cab5 drivers/net/phy/mdio-xpcs.c Jose Abreu 2020-03-09 839
return 0x;
fcb26bd2b6cab5 drivers/net/phy/mdio-xpcs.c Jose Abreu 2020-03-09 840
4d8e49ce43d312 drivers/net/pcs/pcs-xpcs.c Ong Boon Leong 2021-03-15 841
/* If Device IDs are not all zeros, we found C73 AN-type device */
4d8e49ce43d312 drivers/net/pcs/pcs-xpcs.c Ong Boon Leong 2021-03-15 842
if (id | ret)
fcb26bd2b6cab5 drivers/net/phy/mdio-xpcs.c Jose Abreu 2020-03-09 @843
return id | ret;
4d8e49ce43d312 drivers/net/pcs/pcs-xpcs.c Ong Boon Leong 2021-03-15 844
4d8e49ce43d312 drivers/net/pcs/pcs-xpcs.c Ong Boon Leong 2021-03-15 845
/* Next, search C37 PCS using Vendor-Specific MII MMD */
4d8e49ce43d312 drivers/net/pcs/pcs-xpcs.c Ong Boon Leong 2021-03-15 846
ret = xpcs_read(xpcs, MDIO_MMD_VEND2, MII_PHYSID1);
4d8e49ce43d312 drivers/net/pcs/pcs-xpcs.c Ong Boon Leong 2021-03-15 847
if (ret < 0)
4d8e49ce43d312 drivers/net/pcs/pcs-xpcs.c Ong Boon Leong 2021-03-15 848
return 0x;
4d8e49ce43d312 drivers/net/pcs/pcs-xpcs.c Ong Boon Leong 2021-03-15 849
4d8e49ce43d312 drivers/net/pcs/pcs-xpcs.c Ong Boon Leong 2021-03-15 850
id = ret << 16;
4d8e49ce43d312 drivers/net/pcs/pcs-xpcs.c Ong Boon Leong 2021-03-15 851
4d8e49ce43d312 drivers/net/pcs/pcs-xpcs.c Ong Boon Leong 2021-03-15 852
ret = xpcs_read(xpcs, MDIO_MMD_VEND2, MII_PHYSID2);
4d8e49ce43d312 drivers/net/pcs/pcs-xpcs.c Ong Boon Leong 2021-03-15 853
if (ret < 0)
4d8e49ce43d312 drivers/net/pcs/pcs-xpcs.c Ong Boon Leong 2021-03-15 854
return 0x;
4d8e49ce43d312 drivers/net/pcs/pcs-xpcs.c Ong Boon Leong 2021-03-15 855
4d8e49ce43d312 drivers/net/pcs/pcs-xpcs.c Ong Boon Leong 2021-03-15 856
/* If Device IDs are not all zeros, we found C37 AN-type device */
4d8e49ce43d312 drivers/net/pcs/pcs-xpcs.c Ong Boon Leong 2021-03-15 857
if (id | ret)
4d8e49ce43d312 drivers/net/pcs/pcs-xpcs.c Ong Boon Leong 2021-03-15 858
return id | ret;
4d8e49ce43d312 drivers/net/pcs/pcs-xpcs.c Ong Boon
[kbuild] Re: [RFCv3 05/15] tcp: authopt: Add crypto initialization
CC: kbuild-...@lists.01.org
In-Reply-To:
References:
TO: Leonard Crestez
Hi Leonard,
[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on 3a62c333497b164868fdcd241842a1dd4e331825]
url:
https://github.com/0day-ci/linux/commits/Leonard-Crestez/tcp-Initial-support-for-RFC5925-auth-option/20210825-053714
base: 3a62c333497b164868fdcd241842a1dd4e331825
:: branch date: 2 days ago
:: commit date: 2 days ago
config: x86_64-rhel-8.3-kselftests (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.3-348-gf0e6938b-dirty
#
https://github.com/0day-ci/linux/commit/5913479e836ff09dd831385883853e40af12fef8
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review
Leonard-Crestez/tcp-Initial-support-for-RFC5925-auth-option/20210825-053714
git checkout 5913479e836ff09dd831385883853e40af12fef8
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' 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
sparse warnings: (new ones prefixed by >>)
>> net/ipv4/tcp_authopt.c:128:9: sparse: sparse: context imbalance in
>> 'tcp_authopt_alg_get_tfm' - wrong count at exit
net/ipv4/tcp_authopt.c:134:9: sparse: sparse: context imbalance in
'tcp_authopt_alg_put_tfm' - unexpected unlock
vim +/tcp_authopt_alg_get_tfm +128 net/ipv4/tcp_authopt.c
5913479e836ff0 Leonard Crestez 2021-08-25 124
5913479e836ff0 Leonard Crestez 2021-08-25 125 static struct crypto_shash
*tcp_authopt_alg_get_tfm(struct tcp_authopt_alg_imp *alg)
5913479e836ff0 Leonard Crestez 2021-08-25 126 {
5913479e836ff0 Leonard Crestez 2021-08-25 127
spin_lock_bh(>lock);
5913479e836ff0 Leonard Crestez 2021-08-25 @128 WARN_ON(alg->ref_cnt <
0);
5913479e836ff0 Leonard Crestez 2021-08-25 129 return alg->tfm;
5913479e836ff0 Leonard Crestez 2021-08-25 130 }
5913479e836ff0 Leonard Crestez 2021-08-25 131
---
0-DAY CI Kernel Test Service, Intel Corporation
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Description: application/gzip
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[kbuild] Re: [PATCH v4] ixgbe: let the xdpdrv work with more than 64 cpus
CC: kbuild-...@lists.01.org
In-Reply-To: <20210826141623.8151-1-kerneljasonx...@gmail.com>
References: <20210826141623.8151-1-kerneljasonx...@gmail.com>
TO: kerneljasonx...@gmail.com
TO: jesse.brandeb...@intel.com
TO: anthony.l.ngu...@intel.com
TO: da...@davemloft.net
TO: k...@kernel.org
TO: a...@kernel.org
TO: dan...@iogearbox.net
TO: h...@kernel.org
TO: john.fastab...@gmail.com
TO: and...@kernel.org
TO: ka...@fb.com
Hi,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on tnguy-next-queue/dev-queue]
[also build test WARNING on v5.14-rc7 next-20210826]
[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/kerneljasonxing-gmail-com/ixgbe-let-the-xdpdrv-work-with-more-than-64-cpus/20210826-221806
base: https://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue.git
dev-queue
:: branch date: 8 hours ago
:: commit date: 8 hours ago
config: microblaze-randconfig-s032-20210826 (attached as .config)
compiler: microblaze-linux-gcc (GCC) 11.2.0
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: v0.6.3-348-gf0e6938b-dirty
#
https://github.com/0day-ci/linux/commit/2452ffa7fe1ae306a6d0abd5c0c411e02da21774
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review
kerneljasonxing-gmail-com/ixgbe-let-the-xdpdrv-work-with-more-than-64-cpus/20210826-221806
git checkout 2452ffa7fe1ae306a6d0abd5c0c411e02da21774
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=microblaze
SHELL=/bin/bash drivers/net/ethernet/intel/ixgbe/ net/ipv6/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
sparse warnings: (new ones prefixed by >>)
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:10175:25: sparse: sparse:
incompatible types in comparison expression (different address spaces):
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:10175:25: sparse:struct
bpf_prog [noderef] __rcu *
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:10175:25: sparse:struct
bpf_prog *
>> drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:8614:9: sparse: sparse:
>> context imbalance in 'ixgbe_xmit_xdp_ring' - different lock contexts for
>> basic block
>> drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:10229:9: sparse: sparse:
>> context imbalance in 'ixgbe_xdp_ring_update_tail_locked' - different lock
>> contexts for basic block
vim +/ixgbe_xmit_xdp_ring +8614 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
09a3b1f8b1af72 drivers/net/ixgbe/ixgbe_main.cStephen Hemminger
2009-03-21 8543
eadec877ce9ca4 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c Alexander Duyck
2018-07-09 8544 #endif
46515fdb1adff1 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c Björn Töpel
2018-10-02 8545 int ixgbe_xmit_xdp_ring(struct ixgbe_adapter *adapter,
44fa2dbd475996 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c Jesper Dangaard
Brouer 2018-04-17 8546struct xdp_frame *xdpf)
33fdc82f08835d drivers/net/ethernet/intel/ixgbe/ixgbe_main.c John Fastabend
2017-04-24 8547 {
33fdc82f08835d drivers/net/ethernet/intel/ixgbe/ixgbe_main.c John Fastabend
2017-04-24 8548struct ixgbe_tx_buffer *tx_buffer;
33fdc82f08835d drivers/net/ethernet/intel/ixgbe/ixgbe_main.c John Fastabend
2017-04-24 8549union ixgbe_adv_tx_desc *tx_desc;
2452ffa7fe1ae3 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c Jason Xing
2021-08-26 8550struct ixgbe_ring *ring;
33fdc82f08835d drivers/net/ethernet/intel/ixgbe/ixgbe_main.c John Fastabend
2017-04-24 8551u32 len, cmd_type;
33fdc82f08835d drivers/net/ethernet/intel/ixgbe/ixgbe_main.c John Fastabend
2017-04-24 8552dma_addr_t dma;
2452ffa7fe1ae3 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c Jason Xing
2021-08-26 8553int index, ret;
33fdc82f08835d drivers/net/ethernet/intel/ixgbe/ixgbe_main.c John Fastabend
2017-04-24 8554u16 i;
33fdc82f08835d drivers/net/ethernet/intel/ixgbe/ixgbe_main.c John Fastabend
2017-04-24 8555
039930945a72d9 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c Jesper Dangaard
Brouer 2018-04-17 8556len = xdpf->len;
33fdc82f08835d drivers/net/ethernet/intel/ixgbe/ixgbe_main.c John Fastabend
2017-04-24 8557
2452ffa7fe1ae3 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c Jason Xing
2021-08-26 8558index = ixgbe_determine_xdp_q_idx(smp_p
[kbuild] [jpirko-mlxsw:linecards 92/112] drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c:398 mlxfw_firmware_flash() warn: missing error code 'err'
CC: kbuild-...@lists.01.org
CC: linux-ker...@vger.kernel.org
TO: Jiri Pirko
tree: https://github.com/jpirko/linux_mlxsw linecards
head: a37df1af1f3e6a47a9718298d5e50b842f79b2d2
commit: 6865f62b66dc9b887cfdf27a5a465cc286e8cfcc [92/112] mlxfw: Get the PSID
value using op instead of passing it in struct
:: branch date: 32 hours ago
:: commit date: 35 hours ago
config: i386-randconfig-m021-20210826 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
Reported-by: Dan Carpenter
smatch warnings:
drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c:398 mlxfw_firmware_flash()
warn: missing error code 'err'
vim +/err +398 drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
410ed13cae39df Yotam Gigi 2017-05-23 346
410ed13cae39df Yotam Gigi 2017-05-23 347 int mlxfw_firmware_flash(struct
mlxfw_dev *mlxfw_dev,
44f18db5c16a83 Jiri Pirko 2019-06-04 348 const
struct firmware *firmware,
44f18db5c16a83 Jiri Pirko 2019-06-04 349 struct
netlink_ext_ack *extack)
410ed13cae39df Yotam Gigi 2017-05-23 350 {
410ed13cae39df Yotam Gigi 2017-05-23 351 struct mlxfw_mfa2_file
*mfa2_file;
958dfd0dc6d845 Eran Ben Elisha 2020-02-21 352 bool reactivate_supp =
true;
6865f62b66dc9b Jiri Pirko 2021-06-04 353 const char *psid;
6865f62b66dc9b Jiri Pirko 2021-06-04 354 u16 psid_size;
410ed13cae39df Yotam Gigi 2017-05-23 355 u32 fwhandle;
410ed13cae39df Yotam Gigi 2017-05-23 356 int err;
410ed13cae39df Yotam Gigi 2017-05-23 357
410ed13cae39df Yotam Gigi 2017-05-23 358 if
(!mlxfw_mfa2_check(firmware)) {
5042e8b97d4176 Saeed Mahameed 2020-02-21 359
MLXFW_ERR_MSG(mlxfw_dev, extack,
5042e8b97d4176 Saeed Mahameed 2020-02-21 360
"Firmware file is not MFA2", -EINVAL);
410ed13cae39df Yotam Gigi 2017-05-23 361 return -EINVAL;
410ed13cae39df Yotam Gigi 2017-05-23 362 }
410ed13cae39df Yotam Gigi 2017-05-23 363
410ed13cae39df Yotam Gigi 2017-05-23 364 mfa2_file =
mlxfw_mfa2_file_init(firmware);
f7fe7aa88fa25e Saeed Mahameed 2020-02-21 365 if (IS_ERR(mfa2_file)) {
f7fe7aa88fa25e Saeed Mahameed 2020-02-21 366 err =
PTR_ERR(mfa2_file);
5042e8b97d4176 Saeed Mahameed 2020-02-21 367
MLXFW_ERR_MSG(mlxfw_dev, extack,
5042e8b97d4176 Saeed Mahameed 2020-02-21 368
"Failed to initialize MFA2 firmware file", err);
f7fe7aa88fa25e Saeed Mahameed 2020-02-21 369 return err;
f7fe7aa88fa25e Saeed Mahameed 2020-02-21 370 }
410ed13cae39df Yotam Gigi 2017-05-23 371
6a3f707c0051a5 Saeed Mahameed 2020-02-21 372 mlxfw_info(mlxfw_dev,
"Initialize firmware flash process\n");
5853c41823ddbf Jiri Pirko 2019-06-04 373
mlxfw_status_notify(mlxfw_dev, "Initializing firmware flash process",
5853c41823ddbf Jiri Pirko 2019-06-04 374
NULL, 0, 0);
410ed13cae39df Yotam Gigi 2017-05-23 375 err =
mlxfw_dev->ops->fsm_lock(mlxfw_dev, );
410ed13cae39df Yotam Gigi 2017-05-23 376 if (err) {
5042e8b97d4176 Saeed Mahameed 2020-02-21 377
MLXFW_ERR_MSG(mlxfw_dev, extack,
5042e8b97d4176 Saeed Mahameed 2020-02-21 378
"Could not lock the firmware FSM", err);
410ed13cae39df Yotam Gigi 2017-05-23 379 goto
err_fsm_lock;
410ed13cae39df Yotam Gigi 2017-05-23 380 }
410ed13cae39df Yotam Gigi 2017-05-23 381
410ed13cae39df Yotam Gigi 2017-05-23 382 err =
mlxfw_fsm_state_wait(mlxfw_dev, fwhandle,
44f18db5c16a83 Jiri Pirko 2019-06-04 383
MLXFW_FSM_STATE_LOCKED, extack);
410ed13cae39df Yotam Gigi 2017-05-23 384 if (err)
410ed13cae39df Yotam Gigi 2017-05-23 385 goto
err_state_wait_idle_to_locked;
410ed13cae39df Yotam Gigi 2017-05-23 386
958dfd0dc6d845 Eran Ben Elisha 2020-02-21 387 err =
mlxfw_fsm_reactivate(mlxfw_dev, extack, _supp);
958dfd0dc6d845 Eran Ben Elisha 2020-02-21 388 if (err)
958dfd0dc6d845 Eran Ben Elisha 2020-02-21 389 goto
err_fsm_reactivate;
958dfd0dc6d845 Eran Ben Elisha 2020-02-21 390
958dfd0dc6d845 Eran Ben Elisha 2020-02-21 391 err =
mlxfw_fsm_state_wait(mlxfw_dev, fwhandle,
958dfd0dc6d845 Eran Ben Elisha 2020-02-21 392
MLXFW_FSM_STATE_LOCKED, extack);
958dfd0dc6d845 Eran Ben Elisha 2020-02-21 393 if (err)
958dfd0dc6d845 Eran Ben Elisha 2020-02-21 394 goto
err_state_wait_reactivate_t
[kbuild] [xlnx:xlnx_rebase_v5.10 1665/1762] drivers/gpu/drm/xlnx/xlnx_bridge.h:97:15: sparse: sparse: duplicate inline
CC: kbuild-...@lists.01.org
CC: linux-arm-ker...@lists.infradead.org
TO: Jianqiang Chen
CC: Michal Simek
tree: https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.10
head: 09a4215f61493584f4410cab3477003e4046dab9
commit: c249c4e4c0d9c18809d3e3bdc9cb4cdfb6e72db9 [1665/1762] drm: xlnx: Update
DP subsystem with downstream version
:: branch date: 3 days ago
:: commit date: 3 months ago
config: arc-randconfig-s032-20210826 (attached as .config)
compiler: arc-elf-gcc (GCC) 11.2.0
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: v0.6.3-348-gf0e6938b-dirty
#
https://github.com/Xilinx/linux-xlnx/commit/c249c4e4c0d9c18809d3e3bdc9cb4cdfb6e72db9
git remote add xlnx https://github.com/Xilinx/linux-xlnx
git fetch --no-tags xlnx xlnx_rebase_v5.10
git checkout c249c4e4c0d9c18809d3e3bdc9cb4cdfb6e72db9
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arc
SHELL=/bin/bash drivers/gpu/
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/xlnx/zynqmp_disp.c: note: in included file:
>> drivers/gpu/drm/xlnx/xlnx_bridge.h:97:15: sparse: sparse: duplicate inline
drivers/gpu/drm/xlnx/zynqmp_disp.c:160:41: sparse: sparse: array of flexible
structures
vim +97 drivers/gpu/drm/xlnx/xlnx_bridge.h
bf32bb05a6b47b Hyun Kwon 2018-01-23 96
f6b21d4b6cf674 Hyun Kwon 2018-02-08 @97 static inline inline int
xlnx_bridge_helper_init(void)
bf32bb05a6b47b Hyun Kwon 2018-01-23 98 {
bf32bb05a6b47b Hyun Kwon 2018-01-23 99return 0;
bf32bb05a6b47b Hyun Kwon 2018-01-23 100 }
bf32bb05a6b47b Hyun Kwon 2018-01-23 101
:: The code at line 97 was first introduced by commit
:: f6b21d4b6cf674613445d225d2f0717848e69c40 drm: xlnx: bridge: Fix the
multiple definition error
:: TO: Hyun Kwon
:: CC: Michal Simek
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
Description: application/gzip
___
kbuild mailing list -- kbuild@lists.01.org
To unsubscribe send an email to kbuild-le...@lists.01.org
[kbuild] [tip:sched/core 2/11] kernel/sched/fair.c:446:21: warning: Access to field 'my_q' results in a dereference of a null pointer (loaded from variable 'se') [clang-analyzer-core.NullDereference]
CC: l...@lists.linux.dev
CC: kbuild-...@lists.01.org
CC: linux-ker...@vger.kernel.org
CC: x...@kernel.org
TO: Josh Don
CC: Peter Zijlstra
CC: Vincent Guittot
tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched/core
head: 234b8ab6476c5edd5262e2ff563de9498d60044a
commit: 304000390f88d049c85e9a0958ac5567f38816ee [2/11] sched: Cgroup
SCHED_IDLE support
:: branch date: 6 days ago
:: commit date: 6 days ago
config: mips-randconfig-c004-20210826 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project
ea08c4cd1c0869ec5024a8bb3f5cdf06ab03ae83)
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://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=304000390f88d049c85e9a0958ac5567f38816ee
git remote add tip
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
git fetch --no-tags tip sched/core
git checkout 304000390f88d049c85e9a0958ac5567f38816ee
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips
clang-analyzer
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
clang-analyzer warnings: (new ones prefixed by >>)
^
drivers/media/usb/cx231xx/cx231xx-core.c:194:6: note: Assuming field
'direction' is 0
if (req_data->direction) {
^~~
drivers/media/usb/cx231xx/cx231xx-core.c:194:2: note: Taking false branch
if (req_data->direction) {
^
drivers/media/usb/cx231xx/cx231xx-core.c:205:11: note: Calling
'cx231xx_send_vendor_cmd'
status = cx231xx_send_vendor_cmd(dev, _req);
^~
drivers/media/usb/cx231xx/cx231xx-core.c:325:2: note: Taking false branch
if (dev->state & DEV_DISCONNECTED)
^
drivers/media/usb/cx231xx/cx231xx-core.c:328:7: note: Assuming field
'wLength' is <= URB_MAX_CTRL_SIZE
if ((ven_req->wLength > URB_MAX_CTRL_SIZE))
^~~~
drivers/media/usb/cx231xx/cx231xx-core.c:328:2: note: Taking false branch
if ((ven_req->wLength > URB_MAX_CTRL_SIZE))
^
drivers/media/usb/cx231xx/cx231xx-core.c:331:15: note: Field 'direction' is 0
if (ven_req->direction)
^
drivers/media/usb/cx231xx/cx231xx-core.c:331:2: note: Taking false branch
if (ven_req->direction)
^
drivers/media/usb/cx231xx/cx231xx-core.c:340:7: note: Assuming field
'wLength' is <= 4
if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) ||
^~~~
drivers/media/usb/cx231xx/cx231xx-core.c:340:29: note: Left side of '&&' is
false
if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) ||
^
drivers/media/usb/cx231xx/cx231xx-core.c:383:9: note: 6th function call
argument is an uninitialized value
ret = __usb_control_msg(dev, pipe, ven_req->bRequest,
^
drivers/media/usb/cx231xx/cx231xx-core.c:635:2: warning: Value stored to
'status' is never read [clang-analyzer-deadcode.DeadStores]
status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
^
drivers/media/usb/cx231xx/cx231xx-core.c:635:2: note: Value stored to
'status' is never read
status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
^
drivers/media/usb/cx231xx/cx231xx-core.c:644:2: warning: Value stored to
'status' is never read [clang-analyzer-deadcode.DeadStores]
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
^~
drivers/media/usb/cx231xx/cx231xx-core.c:644:2: note: Value stored to
'status' is never read
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
^~
drivers/media/usb/cx231xx/cx231xx-core.c:649:2: warning: Value stored to
'status' is never read [clang-analyzer-deadcode.DeadStores]
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
^~
drivers/media/usb/cx231xx/cx231xx-core.c:649:2: note: Value stored to
'status' is never read
status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
^
[kbuild] arch/riscv/include/asm/current.h:31:9: sparse: sparse: context imbalance in 'RCU_in_HARDIRQ' - wrong count at exit
CC: kbuild-...@lists.01.org CC: linux-ker...@vger.kernel.org TO: Boqun Feng CC: Peter Zijlstra tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 73f3af7b4611d77bdaea303fb639333eb28e37d7 commit: 9271a40d2a1429113160ccc4c16150921600bcc1 lockdep/selftest: Add wait context selftests date: 7 months ago :: branch date: 20 hours ago :: commit date: 7 months ago config: riscv-randconfig-s031-20210825 (attached as .config) compiler: riscv32-linux-gcc (GCC) 11.2.0 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: v0.6.3-348-gf0e6938b-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9271a40d2a1429113160ccc4c16150921600bcc1 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 9271a40d2a1429113160ccc4c16150921600bcc1 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) lib/locking-selftest.c:298:1: sparse: sparse: context imbalance in 'AA_spin' - wrong count at exit lib/locking-selftest.c:300:1: sparse: sparse: context imbalance in 'AA_wlock' - wrong count at exit lib/locking-selftest.c:302:1: sparse: sparse: context imbalance in 'AA_rlock' - wrong count at exit lib/locking-selftest.c:321:13: sparse: sparse: context imbalance in 'rlock_AA1' - wrong count at exit lib/locking-selftest.c:327:13: sparse: sparse: context imbalance in 'rlock_AA1B' - wrong count at exit lib/locking-selftest.c:347:13: sparse: sparse: context imbalance in 'rlock_AA2' - wrong count at exit lib/locking-selftest.c:359:13: sparse: sparse: context imbalance in 'rlock_AA3' - wrong count at exit lib/locking-selftest.c:722:1: sparse: sparse: context imbalance in 'double_unlock_spin' - unexpected unlock lib/locking-selftest.c:724:1: sparse: sparse: context imbalance in 'double_unlock_wlock' - unexpected unlock lib/locking-selftest.c:726:1: sparse: sparse: context imbalance in 'double_unlock_rlock' - unexpected unlock lib/locking-selftest.c:753:1: sparse: sparse: context imbalance in 'init_held_spin' - wrong count at exit lib/locking-selftest.c:755:1: sparse: sparse: context imbalance in 'init_held_wlock' - wrong count at exit lib/locking-selftest.c:757:1: sparse: sparse: context imbalance in 'init_held_rlock' - wrong count at exit lib/locking-selftest.c:2456:13: sparse: sparse: context imbalance in 'rcu_exit' - unexpected unlock lib/locking-selftest.c:2465:13: sparse: sparse: context imbalance in 'rcu_bh_exit' - unexpected unlock lib/locking-selftest.c:2474:13: sparse: sparse: context imbalance in 'rcu_sched_exit' - unexpected unlock lib/locking-selftest.c:2493:13: sparse: sparse: context imbalance in 'raw_spinlock_exit' - unexpected unlock lib/locking-selftest.c:2502:13: sparse: sparse: context imbalance in 'spinlock_exit' - unexpected unlock lib/locking-selftest.c: note: in included file (through include/linux/thread_info.h, include/asm-generic/preempt.h, arch/riscv/include/generated/asm/preempt.h, ...): >> arch/riscv/include/asm/current.h:31:9: sparse: sparse: context imbalance in >> 'RCU_in_HARDIRQ' - wrong count at exit >> arch/riscv/include/asm/current.h:31:9: sparse: sparse: context imbalance in >> 'RCU_in_NOTTHREADED_HARDIRQ' - wrong count at exit >> arch/riscv/include/asm/current.h:31:9: sparse: sparse: context imbalance in >> 'RCU_in_SOFTIRQ' - wrong count at exit lib/locking-selftest.c:2573:1: sparse: sparse: context imbalance in 'RCU_in_RCU' - wrong count at exit lib/locking-selftest.c:2573:1: sparse: sparse: context imbalance in 'RCU_in_RCU_BH' - wrong count at exit lib/locking-selftest.c:2573:1: sparse: sparse: context imbalance in 'RCU_in_RCU_CALLBACK' - wrong count at exit lib/locking-selftest.c:2573:1: sparse: sparse: context imbalance in 'RCU_in_RCU_SCHED' - wrong count at exit lib/locking-selftest.c:2573:1: sparse: sparse: context imbalance in 'RCU_in_RAW_SPINLOCK' - wrong count at exit lib/locking-selftest.c:2573:1: sparse: sparse: context imbalance in 'RCU_in_SPINLOCK' - wrong count at exit lib/locking-selftest.c:2573:1: sparse: sparse: context imbalance in 'RCU_in_MUTEX' - wrong count at exit arch/riscv/include/asm/current.h:31:9: sparse: sparse: context imbalance in 'RAW_SPINLOCK_in_HARDIRQ' - wrong count at exit arch/riscv/include/asm/current.h:31:9: sparse: sparse: context imbalance in 'RAW_SPINLOCK_in_NOTTHREADED_HARDIRQ' - wrong count at exit
[kbuild] [linux-next:master 9124/10638] sound/soc/intel/skylake/skl-topology.c:2578:38: sparse: sparse: incorrect type in assignment (different base types)
CC: kbuild-...@lists.01.org CC: Linux Memory Management List TO: Kareem Shaik CC: Mark Brown CC: Gustaw Lewandowski CC: Cezary Rojewski tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 88fac11862d38306dd0d2398015744877140390d commit: a4ad42d28618eef83bee02e0a19af0d467bd9722 [9124/10638] ASoC: Intel: Skylake: Support multiple format configs :: branch date: 5 hours ago :: commit date: 3 days ago config: i386-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-348-gf0e6938b-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=a4ad42d28618eef83bee02e0a19af0d467bd9722 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout a4ad42d28618eef83bee02e0a19af0d467bd9722 # 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 >>) sound/soc/intel/skylake/skl-topology.c:2297:33: sparse: got restricted __le32 [usertype] value sound/soc/intel/skylake/skl-topology.c:2291:25: sparse: sparse: restricted __le32 degrades to integer sound/soc/intel/skylake/skl-topology.c:2291:25: sparse: sparse: restricted __le32 degrades to integer sound/soc/intel/skylake/skl-topology.c:2324:38: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] dma_buffer_size @@ got restricted __le32 [usertype] value @@ sound/soc/intel/skylake/skl-topology.c:2324:38: sparse: expected unsigned int [usertype] dma_buffer_size sound/soc/intel/skylake/skl-topology.c:2324:38: sparse: got restricted __le32 [usertype] value sound/soc/intel/skylake/skl-topology.c:2328:26: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] cpc @@ got restricted __le32 [usertype] value @@ sound/soc/intel/skylake/skl-topology.c:2328:26: sparse: expected unsigned int [usertype] cpc sound/soc/intel/skylake/skl-topology.c:2328:26: sparse: got restricted __le32 [usertype] value sound/soc/intel/skylake/skl-topology.c:2332:31: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] is_pages @@ got restricted __le32 [usertype] value @@ sound/soc/intel/skylake/skl-topology.c:2332:31: sparse: expected unsigned int [usertype] is_pages sound/soc/intel/skylake/skl-topology.c:2332:31: sparse: got restricted __le32 [usertype] value sound/soc/intel/skylake/skl-topology.c:2336:26: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] obs @@ got restricted __le32 [usertype] value @@ sound/soc/intel/skylake/skl-topology.c:2336:26: sparse: expected unsigned int [usertype] obs sound/soc/intel/skylake/skl-topology.c:2336:26: sparse: got restricted __le32 [usertype] value sound/soc/intel/skylake/skl-topology.c:2340:26: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] ibs @@ got restricted __le32 [usertype] value @@ sound/soc/intel/skylake/skl-topology.c:2340:26: sparse: expected unsigned int [usertype] ibs sound/soc/intel/skylake/skl-topology.c:2340:26: sparse: got restricted __le32 [usertype] value sound/soc/intel/skylake/skl-topology.c:2322:25: sparse: sparse: restricted __le32 degrades to integer sound/soc/intel/skylake/skl-topology.c:2322:25: sparse: sparse: restricted __le32 degrades to integer sound/soc/intel/skylake/skl-topology.c:2322:25: sparse: sparse: restricted __le32 degrades to integer sound/soc/intel/skylake/skl-topology.c:2322:25: sparse: sparse: restricted __le32 degrades to integer sound/soc/intel/skylake/skl-topology.c:2322:25: sparse: sparse: restricted __le32 degrades to integer sound/soc/intel/skylake/skl-topology.c:2322:25: sparse: sparse: restricted __le32 degrades to integer sound/soc/intel/skylake/skl-topology.c:2322:25: sparse: sparse: restricted __le32 degrades to integer sound/soc/intel/skylake/skl-topology.c:2322:25: sparse: sparse: restricted __le32 degrades to integer sound/soc/intel/skylake/skl-topology.c:2322:25: sparse: sparse: restricted __le32 degrades to integer sound/soc/intel/skylake/skl-topology.c:2392:21: sparse: sparse: restricted __le32 degrades to integer sound/soc/intel/skylake/skl-topology.c:2397:49: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned char [usertype] max_input_pins @@ got restricted __le32 [usertype] value @@
[kbuild] Re: [cxl-cxl:pending 39/40] drivers/cxl/core/bus.c:501 devm_cxl_add_decoder() warn: variable dereferenced before check 'cxld' (see line 497)
On Wed, Aug 25, 2021 at 10:12:32AM +0300, Dan Carpenter wrote:
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 494 int
> devm_cxl_add_decoder(struct device *host, struct cxl_decoder *cxld,
> 574d46ed53b527 drivers/cxl/core/bus.c Dan Williams 2021-08-24 495
> int *target_map)
> 40ba17afdfabb0 drivers/cxl/core.c Dan Williams 2021-06-09 496 {
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 @497struct
> cxl_port *port = to_cxl_port(cxld->dev.parent);
>
>
> Dereference
>
> 40ba17afdfabb0 drivers/cxl/core.c Dan Williams 2021-06-09 498struct
> device *dev;
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 499int rc
> = 0, i;
> 40ba17afdfabb0 drivers/cxl/core.c Dan Williams 2021-06-09 500
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 @501if
> (!cxld)
>
> ^
> Checked too late.
>
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 502
> return -EINVAL;
> 574d46ed53b527 drivers/cxl/core/bus.c Dan Williams 2021-08-24 503
> 40ba17afdfabb0 drivers/cxl/core.c Dan Williams 2021-06-09 504if
> (IS_ERR(cxld))
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 505
> return PTR_ERR(cxld);
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 506
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 507if
> (cxld->interleave_ways < 1) {
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 508
> rc = -EINVAL;
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 509
> goto err;
>
> "dev" not initialized at this point.
>
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 510}
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 511
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 512
> device_lock(>dev);
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 513if
> (list_empty(>dports))
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 514
> rc = -EINVAL;
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 515
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 516for (i
> = 0; rc == 0 && target_map && i < cxld->nr_targets; i++) {
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 517
> struct cxl_dport *dport = find_dport(port, target_map[i]);
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 518
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 519
> if (!dport) {
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 520
> rc = -ENXIO;
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 521
> break;
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 522
> }
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 523
> dev_dbg(host, "%s: target: %d\n", dev_name(dport->dport), i);
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 524
> cxld->target[i] = dport;
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 525}
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 526
> device_unlock(>dev);
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 527if (rc)
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 528
> goto err;
> 40ba17afdfabb0 drivers/cxl/core.c Dan Williams 2021-06-09 529
> 40ba17afdfabb0 drivers/cxl/core.c Dan Williams 2021-06-09 530dev =
> >dev;
> 40ba17afdfabb0 drivers/cxl/core.c Dan Williams 2021-06-09 531rc =
> dev_set_name(dev, "decoder%d.%d", port->id, cxld->id);
> 40ba17afdfabb0 drivers/cxl/core.c Dan Williams 2021-06-09 532if (rc)
> 40ba17afdfabb0 drivers/cxl/core.c Dan Williams 2021-06-09 533
> goto err;
> 40ba17afdfabb0 drivers/cxl/core.c Dan Williams 2021-06-09 534
> 40ba17afdfabb0 drivers/cxl/core.c Dan Williams 2021-06-09 535rc =
> device_add(dev);
> 40ba17afdfabb0 drivers/cxl/core.c Dan Williams 2021-06-09 536if (rc)
> 40ba17afdfabb0 drivers/cxl/core.c Dan Williams 2021-06-09 537
> goto err;
> 40ba17afdfabb0 drivers/cxl/core.c Dan Williams 2021-06-09 538
> b7ca54b6255144 drivers/cxl/core/bus.c Dan Williams 2021-08-24 539return
> devm_add_action_or_reset(host, unregister_cxl_dev, dev);
> 40ba17afdfabb0 drivers/cxl/core.c Dan Williams 2021-06-09 540 err:
> 40ba17afdfabb0 drivers/cxl/core.c Dan Williams 2021-06-09 @541
> put_device(dev);
>
> Should be:
>
> put_device(>dev);
>
> But it feels like a
[kbuild] arch/riscv/include/asm/current.h:31:9: sparse: sparse: context imbalance in 'RCU_in_HARDIRQ' - wrong count at exit
CC: kbuild-...@lists.01.org CC: linux-ker...@vger.kernel.org TO: Boqun Feng CC: Peter Zijlstra tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 73f3af7b4611d77bdaea303fb639333eb28e37d7 commit: 9271a40d2a1429113160ccc4c16150921600bcc1 lockdep/selftest: Add wait context selftests date: 7 months ago :: branch date: 14 hours ago :: commit date: 7 months ago config: riscv-randconfig-s031-20210825 (attached as .config) compiler: riscv32-linux-gcc (GCC) 11.2.0 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: v0.6.3-348-gf0e6938b-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9271a40d2a1429113160ccc4c16150921600bcc1 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 9271a40d2a1429113160ccc4c16150921600bcc1 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) lib/locking-selftest.c:298:1: sparse: sparse: context imbalance in 'AA_spin' - wrong count at exit lib/locking-selftest.c:300:1: sparse: sparse: context imbalance in 'AA_wlock' - wrong count at exit lib/locking-selftest.c:302:1: sparse: sparse: context imbalance in 'AA_rlock' - wrong count at exit lib/locking-selftest.c:321:13: sparse: sparse: context imbalance in 'rlock_AA1' - wrong count at exit lib/locking-selftest.c:327:13: sparse: sparse: context imbalance in 'rlock_AA1B' - wrong count at exit lib/locking-selftest.c:347:13: sparse: sparse: context imbalance in 'rlock_AA2' - wrong count at exit lib/locking-selftest.c:359:13: sparse: sparse: context imbalance in 'rlock_AA3' - wrong count at exit lib/locking-selftest.c:722:1: sparse: sparse: context imbalance in 'double_unlock_spin' - unexpected unlock lib/locking-selftest.c:724:1: sparse: sparse: context imbalance in 'double_unlock_wlock' - unexpected unlock lib/locking-selftest.c:726:1: sparse: sparse: context imbalance in 'double_unlock_rlock' - unexpected unlock lib/locking-selftest.c:753:1: sparse: sparse: context imbalance in 'init_held_spin' - wrong count at exit lib/locking-selftest.c:755:1: sparse: sparse: context imbalance in 'init_held_wlock' - wrong count at exit lib/locking-selftest.c:757:1: sparse: sparse: context imbalance in 'init_held_rlock' - wrong count at exit lib/locking-selftest.c:2456:13: sparse: sparse: context imbalance in 'rcu_exit' - unexpected unlock lib/locking-selftest.c:2465:13: sparse: sparse: context imbalance in 'rcu_bh_exit' - unexpected unlock lib/locking-selftest.c:2474:13: sparse: sparse: context imbalance in 'rcu_sched_exit' - unexpected unlock lib/locking-selftest.c:2493:13: sparse: sparse: context imbalance in 'raw_spinlock_exit' - unexpected unlock lib/locking-selftest.c:2502:13: sparse: sparse: context imbalance in 'spinlock_exit' - unexpected unlock lib/locking-selftest.c: note: in included file (through include/linux/thread_info.h, include/asm-generic/preempt.h, arch/riscv/include/generated/asm/preempt.h, ...): >> arch/riscv/include/asm/current.h:31:9: sparse: sparse: context imbalance in >> 'RCU_in_HARDIRQ' - wrong count at exit >> arch/riscv/include/asm/current.h:31:9: sparse: sparse: context imbalance in >> 'RCU_in_NOTTHREADED_HARDIRQ' - wrong count at exit >> arch/riscv/include/asm/current.h:31:9: sparse: sparse: context imbalance in >> 'RCU_in_SOFTIRQ' - wrong count at exit lib/locking-selftest.c:2573:1: sparse: sparse: context imbalance in 'RCU_in_RCU' - wrong count at exit lib/locking-selftest.c:2573:1: sparse: sparse: context imbalance in 'RCU_in_RCU_BH' - wrong count at exit lib/locking-selftest.c:2573:1: sparse: sparse: context imbalance in 'RCU_in_RCU_CALLBACK' - wrong count at exit lib/locking-selftest.c:2573:1: sparse: sparse: context imbalance in 'RCU_in_RCU_SCHED' - wrong count at exit lib/locking-selftest.c:2573:1: sparse: sparse: context imbalance in 'RCU_in_RAW_SPINLOCK' - wrong count at exit lib/locking-selftest.c:2573:1: sparse: sparse: context imbalance in 'RCU_in_SPINLOCK' - wrong count at exit lib/locking-selftest.c:2573:1: sparse: sparse: context imbalance in 'RCU_in_MUTEX' - wrong count at exit arch/riscv/include/asm/current.h:31:9: sparse: sparse: context imbalance in 'RAW_SPINLOCK_in_HARDIRQ' - wrong count at exit arch/riscv/include/asm/current.h:31:9: sparse: sparse: context imbalance in 'RAW_SPINLOCK_in_NOTTHREADED_HARDIRQ' - wrong count at exit
[kbuild] include/trace/events/rcu.h:27:1: sparse: sparse: context imbalance in 'rcu_core' - wrong count at exit
CC: kbuild-...@lists.01.org CC: linux-ker...@vger.kernel.org TO: Frederic Weisbecker CC: "Paul E. McKenney" tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 73f3af7b4611d77bdaea303fb639333eb28e37d7 commit: 634954c2dbf88e67aa267798f60af6b9a476cf4b rcu/nocb: Locally accelerate callbacks as long as offloading isn't complete date: 8 months ago :: branch date: 14 hours ago :: commit date: 8 months ago config: x86_64-randconfig-s031-20210826 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-348-gf0e6938b-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=634954c2dbf88e67aa267798f60af6b9a476cf4b git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 634954c2dbf88e67aa267798f60af6b9a476cf4b # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash kernel/rcu/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) kernel/rcu/tree.c: note: in included file: kernel/rcu/tree_plugin.h:1496:5: sparse: sparse: symbol 'nocb_nobypass_lim_per_jiffy' was not declared. Should it be static? kernel/rcu/tree.c:1430:9: sparse: sparse: context imbalance in 'rcu_start_this_gp' - different lock contexts for basic block kernel/rcu/tree.c:1842:9: sparse: sparse: context imbalance in 'rcu_gp_init' - different lock contexts for basic block kernel/rcu/tree.c:2614:9: sparse: sparse: context imbalance in 'force_qs_rnp' - different lock contexts for basic block kernel/rcu/tree.c:2667:25: sparse: sparse: context imbalance in 'rcu_force_quiescent_state' - unexpected unlock kernel/rcu/tree.c: note: in included file (through kernel/rcu/rcu.h): >> include/trace/events/rcu.h:27:1: sparse: sparse: context imbalance in >> 'rcu_core' - wrong count at exit kernel/rcu/tree.c: note: in included file: kernel/rcu/tree_stall.h:260:12: sparse: sparse: context imbalance in 'rcu_print_task_stall' - different lock contexts for basic block kernel/rcu/tree_stall.h:767:17: sparse: sparse: context imbalance in 'rcu_check_gp_start_stall' - different lock contexts for basic block kernel/rcu/tree.c: note: in included file: kernel/rcu/tree_exp.h:189:9: sparse: sparse: context imbalance in '__rcu_report_exp_rnp' - different lock contexts for basic block kernel/rcu/tree.c: note: in included file: kernel/rcu/tree_plugin.h:1542:16: sparse: sparse: context imbalance in 'rcu_nocb_bypass_trylock' - wrong count at exit kernel/rcu/tree_plugin.h:1559:13: sparse: sparse: context imbalance in 'rcu_nocb_lock' - wrong count at exit kernel/rcu/tree_plugin.h:1574:17: sparse: sparse: context imbalance in 'rcu_nocb_unlock' - unexpected unlock kernel/rcu/tree_plugin.h:1587:17: sparse: sparse: context imbalance in 'rcu_nocb_unlock_irqrestore' - unexpected unlock kernel/rcu/tree_plugin.h:1634:13: sparse: sparse: context imbalance in 'wake_nocb_gp' - wrong count at exit kernel/rcu/tree_plugin.h:1700:9: sparse: sparse: context imbalance in 'rcu_nocb_do_flush_bypass' - unexpected unlock kernel/rcu/tree_plugin.h:1715:13: sparse: sparse: context imbalance in 'rcu_nocb_flush_bypass' - wrong count at exit kernel/rcu/tree_plugin.h:1866:13: sparse: sparse: context imbalance in '__call_rcu_nocb_wake' - wrong count at exit kernel/rcu/tree_plugin.h:1930:9: sparse: sparse: context imbalance in 'do_nocb_bypass_wakeup_timer' - different lock contexts for basic block kernel/rcu/tree_plugin.h:2006:9: sparse: sparse: context imbalance in 'nocb_gp_wait' - different lock contexts for basic block kernel/rcu/tree_plugin.h:2216:9: sparse: sparse: context imbalance in 'nocb_cb_wait' - wrong count at exit kernel/rcu/tree_plugin.h:2252:13: sparse: sparse: context imbalance in 'do_nocb_deferred_wakeup_common' - different lock contexts for basic block kernel/rcu/tree_plugin.h:2317:9: sparse: sparse: context imbalance in 'rdp_offload_toggle' - wrong count at exit kernel/rcu/tree_plugin.h:2320:12: sparse: sparse: context imbalance in '__rcu_nocb_rdp_deoffload' - wrong count at exit vim +/rcu_core +27 include/trace/events/rcu.h 4f5fbd78a7b40b Yafang Shao 2019-03-26 15 29c00b4a1d9e27 Paul E. McKenney 2011-06-17 16 /* 300df91ca9358f Paul E. McKenney 2011-06-18 17 * Tracepoint for start/end markers used for utilization calculations. 300df91ca9358f Paul E. McKenney 2011-06-18 18 * By convention, the string is of the following forms: 300df91ca9358f Paul E. McKenney 2011-06-18 19 * 300df91ca9358f Paul E. McKenney 2011-06-18 20 * "Start &quo
[kbuild] kernel/rcu/tree.c:2737:9: sparse: sparse: context imbalance in 'rcu_core' - wrong count at exit
CC: kbuild-...@lists.01.org CC: linux-ker...@vger.kernel.org TO: Frederic Weisbecker CC: "Paul E. McKenney" tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 73f3af7b4611d77bdaea303fb639333eb28e37d7 commit: 634954c2dbf88e67aa267798f60af6b9a476cf4b rcu/nocb: Locally accelerate callbacks as long as offloading isn't complete date: 8 months ago :: branch date: 13 hours ago :: commit date: 8 months ago config: sparc64-randconfig-s031-20210826 (attached as .config) compiler: sparc64-linux-gcc (GCC) 11.2.0 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: v0.6.3-348-gf0e6938b-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=634954c2dbf88e67aa267798f60af6b9a476cf4b git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 634954c2dbf88e67aa267798f60af6b9a476cf4b # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=sparc64 SHELL=/bin/bash kernel/rcu/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) kernel/rcu/tree.c: note: in included file: kernel/rcu/tree_plugin.h:1496:5: sparse: sparse: symbol 'nocb_nobypass_lim_per_jiffy' was not declared. Should it be static? kernel/rcu/tree.c:1430:9: sparse: sparse: context imbalance in 'rcu_start_this_gp' - different lock contexts for basic block kernel/rcu/tree.c:1588:28: sparse: sparse: context imbalance in 'rcu_advance_cbs_nowake' - wrong count at exit kernel/rcu/tree.c:1665:13: sparse: sparse: context imbalance in 'note_gp_changes' - different lock contexts for basic block kernel/rcu/tree.c:1842:9: sparse: sparse: context imbalance in 'rcu_gp_init' - different lock contexts for basic block kernel/rcu/tree.c:2614:9: sparse: sparse: context imbalance in 'force_qs_rnp' - different lock contexts for basic block kernel/rcu/tree.c:2667:25: sparse: sparse: context imbalance in 'rcu_force_quiescent_state' - unexpected unlock >> kernel/rcu/tree.c:2737:9: sparse: sparse: context imbalance in 'rcu_core' - >> wrong count at exit kernel/rcu/tree.c: note: in included file: kernel/rcu/tree_stall.h:260:12: sparse: sparse: context imbalance in 'rcu_print_task_stall' - different lock contexts for basic block kernel/rcu/tree.c: note: in included file: kernel/rcu/tree_exp.h:189:9: sparse: sparse: context imbalance in '__rcu_report_exp_rnp' - different lock contexts for basic block kernel/rcu/tree.c: note: in included file: kernel/rcu/tree_plugin.h:1504:13: sparse: sparse: context imbalance in 'rcu_nocb_bypass_lock' - wrong count at exit kernel/rcu/tree_plugin.h:1539:13: sparse: sparse: context imbalance in 'rcu_nocb_bypass_trylock' - wrong count at exit kernel/rcu/tree_plugin.h:1559:13: sparse: sparse: context imbalance in 'rcu_nocb_lock' - wrong count at exit kernel/rcu/tree_plugin.h:1575:17: sparse: sparse: context imbalance in 'rcu_nocb_unlock' - unexpected unlock kernel/rcu/tree_plugin.h:1588:17: sparse: sparse: context imbalance in 'rcu_nocb_unlock_irqrestore' - unexpected unlock kernel/rcu/tree_plugin.h:1634:13: sparse: sparse: context imbalance in 'wake_nocb_gp' - wrong count at exit kernel/rcu/tree_plugin.h:1700:9: sparse: sparse: context imbalance in 'rcu_nocb_do_flush_bypass' - unexpected unlock kernel/rcu/tree_plugin.h:1715:13: sparse: sparse: context imbalance in 'rcu_nocb_flush_bypass' - wrong count at exit kernel/rcu/tree_plugin.h:1866:13: sparse: sparse: context imbalance in '__call_rcu_nocb_wake' - wrong count at exit kernel/rcu/tree_plugin.h:1930:9: sparse: sparse: context imbalance in 'do_nocb_bypass_wakeup_timer' - different lock contexts for basic block kernel/rcu/tree_plugin.h:2006:9: sparse: sparse: context imbalance in 'nocb_gp_wait' - different lock contexts for basic block kernel/rcu/tree_plugin.h:2216:9: sparse: sparse: context imbalance in 'nocb_cb_wait' - wrong count at exit kernel/rcu/tree_plugin.h:2252:13: sparse: sparse: context imbalance in 'do_nocb_deferred_wakeup_common' - different lock contexts for basic block kernel/rcu/tree_plugin.h:2317:9: sparse: sparse: context imbalance in 'rdp_offload_toggle' - wrong count at exit kernel/rcu/tree_plugin.h:2320:12: sparse: sparse: context imbalance in '__rcu_nocb_rdp_deoffload' - wrong count at exit vim +/rcu_core +2737 kernel/rcu/tree.c a657f2617010ae kernel/rcu/tree.c Paul E. McKenney 2020-08-08 2695 fb60e533beab3b kernel/rcu/tree.c Paul E. McKenney 2018-11-21 2696 /*
[kbuild] [bcache:nvdimm-meta 11/12] drivers/md/bcache/journal.c:123:27: warning: Access to field 'keys' results in a dereference of an undefined pointer value (loaded from variable 'j') [clang-analyze
CC: clang-built-li...@googlegroups.com
CC: kbuild-...@lists.01.org
CC: linux-ker...@vger.kernel.org
TO: Coly Li
tree: https://git.kernel.org/pub/scm/linux/kernel/git/colyli/linux-bcache.git
nvdimm-meta
head: 80de5dc2a60df7adc4cdd2ed063dae948a93e089
commit: ab89b985340028f590e633e9095b3c6255a74fc2 [11/12] bcache: read jset from
NVDIMM pages for journal replay
:: branch date: 8 days ago
:: commit date: 8 days ago
config: riscv-randconfig-c006-20210825 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project
ea08c4cd1c0869ec5024a8bb3f5cdf06ab03ae83)
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 riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
#
https://git.kernel.org/pub/scm/linux/kernel/git/colyli/linux-bcache.git/commit/?id=ab89b985340028f590e633e9095b3c6255a74fc2
git remote add bcache
https://git.kernel.org/pub/scm/linux/kernel/git/colyli/linux-bcache.git
git fetch --no-tags bcache nvdimm-meta
git checkout ab89b985340028f590e633e9095b3c6255a74fc2
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv
clang-analyzer
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
clang-analyzer warnings: (new ones prefixed by >>)
can_skb_prv(skb)->skbcnt = 0;
^~~~
net/can/raw.c:820:24: note: Value assigned to field 'end'
err = memcpy_from_msg(skb_put(skb, size), msg, size);
^~
net/can/raw.c:821:6: note: 'err' is >= 0
if (err < 0)
^~~
net/can/raw.c:821:2: note: Taking false branch
if (err < 0)
^
net/can/raw.c:824:2: note: Calling 'skb_setup_tx_timestamp'
skb_setup_tx_timestamp(skb, sk->sk_tsflags);
^~~
include/net/sock.h:2561:39: note: Passing value via 3rd parameter 'tx_flags'
_sock_tx_timestamp(skb->sk, tsflags, _shinfo(skb)->tx_flags,
^~
include/net/sock.h:2561:2: note: Calling '_sock_tx_timestamp'
_sock_tx_timestamp(skb->sk, tsflags, _shinfo(skb)->tx_flags,
^~~~
include/net/sock.h:2543:6: note: Assuming 'tsflags' is not equal to 0
if (unlikely(tsflags)) {
^
include/linux/compiler.h:48:24: note: expanded from macro 'unlikely'
# define unlikely(x) (__branch_check__(x, 0, __builtin_constant_p(x)))
^~~
include/linux/compiler.h:33:32: note: expanded from macro '__branch_check__'
__r = __builtin_expect(!!(x), expect); \
^~~~
include/net/sock.h:2543:2: note: Taking true branch
if (unlikely(tsflags)) {
^
include/net/sock.h:2545:7: note: Assuming the condition is true
if (tsflags & SOF_TIMESTAMPING_OPT_ID && tskey &&
^
include/net/sock.h:2545:7: note: Left side of '&&' is true
include/net/sock.h:2545:44: note: Assuming 'tskey' is null
if (tsflags & SOF_TIMESTAMPING_OPT_ID && tskey &&
^
include/net/sock.h:2545:7: note: Assuming pointer value is null
if (tsflags & SOF_TIMESTAMPING_OPT_ID && tskey &&
^~
include/net/sock.h:2545:50: note: Left side of '&&' is false
if (tsflags & SOF_TIMESTAMPING_OPT_ID && tskey &&
^
include/net/sock.h:2549:6: note: Assuming the condition is false
if (unlikely(sock_flag(sk, SOCK_WIFI_STATUS)))
^
include/linux/compiler.h:48:24: note: expanded from macro 'unlikely'
# define unlikely(x) (__branch_check__(x, 0, __builtin_constant_p(x)))
^~~
include/linux/compiler.h:33:32: note: expanded from macro '__branch_check__'
__r = __builtin_expect(!!(x), expect); \
^~~~
include/net/sock.h:2549:2: note: Taking true branch
if (unlikely(sock_flag(sk, SOCK_WIFI_STATUS)))
^
include/net/sock.h:2550:13: note: Dereference of null pointer (loaded from
variable 'tx_flags')
*tx_flags |= SKBTX_WIFI_STATUS;
^
