CC: [email protected]
TO: [email protected]

tree:   https://android.googlesource.com/kernel/common android12-5.10-m2107
head:   02979b57668b46da2e7030916b8b7904b2539872
commit: 08c1a30975dd9294db1ae704ee9fb09cfb3fe5ab [3721/10669] FROMLIST: x86/mm: 
define ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT
:::::: branch date: 14 hours ago
:::::: commit date: 6 months ago
config: x86_64-randconfig-s022-20210722 (attached as .config)
compiler: gcc-10 (Ubuntu 10.3.0-1ubuntu1~20.04) 10.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.3-341-g8af24329-dirty
        git remote add android-common 
https://android.googlesource.com/kernel/common
        git fetch --no-tags android-common android12-5.10-m2107
        git checkout 08c1a30975dd9294db1ae704ee9fb09cfb3fe5ab
        # 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 <[email protected]>


sparse warnings: (new ones prefixed by >>)
   mm/memory.c:3009:19: sparse: sparse: incorrect type in initializer 
(different base types) @@     expected int ret @@     got restricted vm_fault_t 
@@
   mm/memory.c:3009:19: sparse:     expected int ret
   mm/memory.c:3009:19: sparse:     got restricted vm_fault_t
   mm/memory.c:3054:21: sparse: sparse: incorrect type in assignment (different 
base types) @@     expected int ret @@     got restricted vm_fault_t @@
   mm/memory.c:3054:21: sparse:     expected int ret
   mm/memory.c:3054:21: sparse:     got restricted vm_fault_t
   mm/memory.c:3148:16: sparse: sparse: incorrect type in return expression 
(different base types) @@     expected restricted vm_fault_t @@     got int ret 
@@
   mm/memory.c:3148:16: sparse:     expected restricted vm_fault_t
   mm/memory.c:3148:16: sparse:     got int ret
   mm/memory.c:3440:13: sparse: sparse: incorrect type in assignment (different 
base types) @@     expected restricted vm_fault_t [usertype] ret @@     got int 
@@
   mm/memory.c:3440:13: sparse:     expected restricted vm_fault_t [usertype] 
ret
   mm/memory.c:3440:13: sparse:     got int
   mm/memory.c:4861:24: sparse: sparse: incorrect type in return expression 
(different base types) @@     expected int @@     got restricted vm_fault_t @@
   mm/memory.c:4861:24: sparse:     expected int
   mm/memory.c:4861:24: sparse:     got restricted vm_fault_t
   mm/memory.c:4868:24: sparse: sparse: incorrect type in return expression 
(different base types) @@     expected int @@     got restricted vm_fault_t @@
   mm/memory.c:4868:24: sparse:     expected int
   mm/memory.c:4868:24: sparse:     got restricted vm_fault_t
   mm/memory.c:4878:24: sparse: sparse: incorrect type in return expression 
(different base types) @@     expected int @@     got restricted vm_fault_t @@
   mm/memory.c:4878:24: sparse:     expected int
   mm/memory.c:4878:24: sparse:     got restricted vm_fault_t
   mm/memory.c:4888:24: sparse: sparse: incorrect type in return expression 
(different base types) @@     expected int @@     got restricted vm_fault_t @@
   mm/memory.c:4888:24: sparse:     expected int
   mm/memory.c:4888:24: sparse:     got restricted vm_fault_t
   mm/memory.c:4897:24: sparse: sparse: incorrect type in return expression 
(different base types) @@     expected int @@     got restricted vm_fault_t @@
   mm/memory.c:4897:24: sparse:     expected int
   mm/memory.c:4897:24: sparse:     got restricted vm_fault_t
   mm/memory.c:4907:24: sparse: sparse: incorrect type in return expression 
(different base types) @@     expected int @@     got restricted vm_fault_t @@
   mm/memory.c:4907:24: sparse:     expected int
   mm/memory.c:4907:24: sparse:     got restricted vm_fault_t
   mm/memory.c:4913:24: sparse: sparse: incorrect type in return expression 
(different base types) @@     expected int @@     got restricted vm_fault_t @@
   mm/memory.c:4913:24: sparse:     expected int
   mm/memory.c:4913:24: sparse:     got restricted vm_fault_t
   mm/memory.c:5017:24: sparse: sparse: incorrect type in return expression 
(different base types) @@     expected int @@     got restricted vm_fault_t @@
   mm/memory.c:5017:24: sparse:     expected int
   mm/memory.c:5017:24: sparse:     got restricted vm_fault_t
   mm/memory.c:5021:13: sparse: sparse: incorrect type in assignment (different 
base types) @@     expected int ret @@     got restricted vm_fault_t @@
   mm/memory.c:5021:13: sparse:     expected int ret
   mm/memory.c:5021:13: sparse:     got restricted vm_fault_t
   mm/memory.c:5027:20: sparse: sparse: restricted vm_fault_t degrades to 
integer
   mm/memory.c:5039:51: sparse: sparse: restricted vm_fault_t degrades to 
integer
   mm/memory.c:5046:16: sparse: sparse: incorrect type in return expression 
(different base types) @@     expected int @@     got restricted vm_fault_t @@
   mm/memory.c:5046:16: sparse:     expected int
   mm/memory.c:5046:16: sparse:     got restricted vm_fault_t
   mm/memory.c:5056:16: sparse: sparse: incorrect type in return expression 
(different base types) @@     expected int @@     got restricted vm_fault_t @@
   mm/memory.c:5056:16: sparse:     expected int
   mm/memory.c:5056:16: sparse:     got restricted vm_fault_t
   mm/memory.c:5691:22: sparse: sparse: cast removes address space '__user' of 
expression
   mm/memory.c:969:17: sparse: sparse: context imbalance in 'copy_pte_range' - 
different lock contexts for basic block
   mm/memory.c:1651:16: sparse: sparse: context imbalance in '__get_locked_pte' 
- different lock contexts for basic block
   mm/memory.c:1700:9: sparse: sparse: context imbalance in 'insert_page' - 
different lock contexts for basic block
   mm/memory.c:2203:17: sparse: sparse: context imbalance in 'remap_pte_range' 
- different lock contexts for basic block
   mm/memory.c:2448:17: sparse: sparse: context imbalance in 
'apply_to_pte_range' - unexpected unlock
   mm/memory.c: note: in included file (through include/linux/irqflags.h, 
arch/x86/include/asm/special_insns.h, arch/x86/include/asm/processor.h, ...):
>> arch/x86/include/asm/irqflags.h:54:9: sparse: sparse: context imbalance in 
>> 'pte_spinlock' - different lock contexts for basic block
   arch/x86/include/asm/irqflags.h:54:9: sparse: sparse: context imbalance in 
'pte_map_lock' - different lock contexts for basic block
   mm/memory.c:3123:9: sparse: sparse: context imbalance in 'wp_page_copy' - 
unexpected unlock
   mm/memory.c: note: in included file:
   include/linux/mm.h:1002:9: sparse: sparse: context imbalance in 
'finish_mkwrite_fault' - unexpected unlock
   mm/memory.c:3196:17: sparse: sparse: context imbalance in 'wp_pfn_shared' - 
unexpected unlock
   mm/memory.c:3259:19: sparse: sparse: context imbalance in 'do_wp_page' - 
different lock contexts for basic block
   mm/memory.c:3666:9: sparse: sparse: context imbalance in 'do_swap_page' - 
unexpected unlock
   mm/memory.c:3799:9: sparse: sparse: context imbalance in 'do_anonymous_page' 
- unexpected unlock
   mm/memory.c:4104:17: sparse: sparse: context imbalance in 'finish_fault' - 
unexpected unlock
   mm/memory.c:4213:9: sparse: sparse: context imbalance in 'do_fault_around' - 
unexpected unlock
   mm/memory.c:4416:17: sparse: sparse: context imbalance in 'do_numa_page' - 
unexpected unlock
   mm/memory.c:4660:9: sparse: sparse: context imbalance in 'handle_pte_fault' 
- unexpected unlock
   mm/memory.c:5204:12: sparse: sparse: context imbalance in '__follow_pte_pmd' 
- different lock contexts for basic block
   mm/memory.c:5290:16: sparse: sparse: context imbalance in 'follow_pte_pmd' - 
different lock contexts for basic block
   mm/memory.c:5350:9: sparse: sparse: context imbalance in 'follow_phys' - 
unexpected unlock

vim +/pte_spinlock +54 arch/x86/include/asm/irqflags.h

6abcd98ffafbff include/asm-x86/irqflags.h      Glauber de Oliveira Costa 
2008-01-30  51  
7a745be1cc902d arch/x86/include/asm/irqflags.h Peter Zijlstra            
2020-06-03  52  static __always_inline void native_irq_enable(void)
6abcd98ffafbff include/asm-x86/irqflags.h      Glauber de Oliveira Costa 
2008-01-30  53  {
6abcd98ffafbff include/asm-x86/irqflags.h      Glauber de Oliveira Costa 
2008-01-30 @54         asm volatile("sti": : :"memory");
6abcd98ffafbff include/asm-x86/irqflags.h      Glauber de Oliveira Costa 
2008-01-30  55  }
6abcd98ffafbff include/asm-x86/irqflags.h      Glauber de Oliveira Costa 
2008-01-30  56  

:::::: The code at line 54 was first introduced by commit
:::::: 6abcd98ffafbff81f0bfd7ee1d129e634af13245 x86: irqflags consolidation

:::::: TO: Glauber de Oliveira Costa <[email protected]>
:::::: CC: Ingo Molnar <[email protected]>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]

Attachment: .config.gz
Description: application/gzip

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