arch/powerpc/include/asm/hw_irq.h:160:9: sparse: sparse: context imbalance in 'split_huge_page_to_list'

* arch/powerpc/include/asm/hw_irq.h:160:9: sparse: sparse: context imbalance in 'split_huge_page_to_list' - different lock contexts for basic block
@ 2021-07-28 10:52 kernel test robot
  0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2021-07-28 10:52 UTC (permalink / raw)
  To: kbuild

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CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Alex Shi <alex.shi@linux.alibaba.com>
CC: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Linux Memory Management List <linux-mm@kvack.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   7d549995d4e0d99b68e8a7793a0d23da6fc40fe8
commit: b6769834aac1d467fa1c71277d15688efcbb4d76 mm/thp: narrow lru locking
date:   8 months ago
:::::: branch date: 14 hours ago
:::::: commit date: 8 months ago
config: powerpc-randconfig-s031-20210715 (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 10.3.0
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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b6769834aac1d467fa1c71277d15688efcbb4d76
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout b6769834aac1d467fa1c71277d15688efcbb4d76
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=powerpc SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

sparse warnings: (new ones prefixed by >>)
   mm/huge_memory.c: note: in included file (through arch/powerpc/include/asm/book3s/64/mmu-hash.h, arch/powerpc/include/asm/book3s/64/mmu.h, ...):
   arch/powerpc/include/asm/book3s/64/pgtable.h:712:20: sparse: sparse: incorrect type in initializer (different base types) @@     expected unsigned long long [usertype] mask @@     got restricted __be64 [usertype] @@
   arch/powerpc/include/asm/book3s/64/pgtable.h:712:20: sparse:     expected unsigned long long [usertype] mask
   arch/powerpc/include/asm/book3s/64/pgtable.h:712:20: sparse:     got restricted __be64 [usertype]
   arch/powerpc/include/asm/book3s/64/pgtable.h:714:24: sparse: sparse: restricted __be64 degrades to integer
   arch/powerpc/include/asm/book3s/64/pgtable.h:712:20: sparse: sparse: incorrect type in initializer (different base types) @@     expected unsigned long long [usertype] mask @@     got restricted __be64 [usertype] @@
   arch/powerpc/include/asm/book3s/64/pgtable.h:712:20: sparse:     expected unsigned long long [usertype] mask
   arch/powerpc/include/asm/book3s/64/pgtable.h:712:20: sparse:     got restricted __be64 [usertype]
   arch/powerpc/include/asm/book3s/64/pgtable.h:714:24: sparse: sparse: restricted __be64 degrades to integer
   mm/huge_memory.c:1640:20: sparse: sparse: context imbalance in 'madvise_free_huge_pmd' - unexpected unlock
   mm/huge_memory.c:1677:28: sparse: sparse: context imbalance in 'zap_huge_pmd' - unexpected unlock
   mm/huge_memory.c:1787:28: sparse: sparse: context imbalance in 'move_huge_pmd' - unexpected unlock
   mm/huge_memory.c:1891:20: sparse: sparse: context imbalance in 'change_huge_pmd' - unexpected unlock
   arch/powerpc/include/asm/book3s/64/pgtable.h:712:20: sparse: sparse: incorrect type in initializer (different base types) @@     expected unsigned long long [usertype] mask @@     got restricted __be64 [usertype] @@
   arch/powerpc/include/asm/book3s/64/pgtable.h:712:20: sparse:     expected unsigned long long [usertype] mask
   arch/powerpc/include/asm/book3s/64/pgtable.h:712:20: sparse:     got restricted __be64 [usertype]
   arch/powerpc/include/asm/book3s/64/pgtable.h:714:24: sparse: sparse: restricted __be64 degrades to integer
   mm/huge_memory.c:1901:12: sparse: sparse: context imbalance in '__pmd_trans_huge_lock' - wrong count at exit
   arch/powerpc/include/asm/book3s/64/pgtable.h:712:20: sparse: sparse: incorrect type in initializer (different base types) @@     expected unsigned long long [usertype] mask @@     got restricted __be64 [usertype] @@
   arch/powerpc/include/asm/book3s/64/pgtable.h:712:20: sparse:     expected unsigned long long [usertype] mask
   arch/powerpc/include/asm/book3s/64/pgtable.h:712:20: sparse:     got restricted __be64 [usertype]
   arch/powerpc/include/asm/book3s/64/pgtable.h:714:24: sparse: sparse: restricted __be64 degrades to integer
   arch/powerpc/include/asm/book3s/64/pgtable.h:712:20: sparse: sparse: incorrect type in initializer (different base types) @@     expected unsigned long long [usertype] mask @@     got restricted __be64 [usertype] @@
   arch/powerpc/include/asm/book3s/64/pgtable.h:712:20: sparse:     expected unsigned long long [usertype] mask
   arch/powerpc/include/asm/book3s/64/pgtable.h:712:20: sparse:     got restricted __be64 [usertype]
   arch/powerpc/include/asm/book3s/64/pgtable.h:714:24: sparse: sparse: restricted __be64 degrades to integer
   mm/huge_memory.c:2510:29: sparse: sparse: context imbalance in '__split_huge_page' - unexpected unlock
   mm/huge_memory.c: note: in included file (through arch/powerpc/include/asm/irqflags.h, include/linux/irqflags.h, include/linux/spinlock.h, ...):
>> arch/powerpc/include/asm/hw_irq.h:160:9: sparse: sparse: context imbalance in 'split_huge_page_to_list' - different lock contexts for basic block

vim +/split_huge_page_to_list +160 arch/powerpc/include/asm/hw_irq.h

^1da177e4c3f41 include/asm-ppc64/hw_irq.h        Linus Torvalds      2005-04-16  157  
df9ee29270c11d arch/powerpc/include/asm/hw_irq.h David Howells       2010-10-07  158  static inline void arch_local_irq_enable(void)
df9ee29270c11d arch/powerpc/include/asm/hw_irq.h David Howells       2010-10-07  159  {
c2e480ba822718 arch/powerpc/include/asm/hw_irq.h Madhavan Srinivasan 2017-12-20 @160  	arch_local_irq_restore(IRQS_ENABLED);
df9ee29270c11d arch/powerpc/include/asm/hw_irq.h David Howells       2010-10-07  161  }
df9ee29270c11d arch/powerpc/include/asm/hw_irq.h David Howells       2010-10-07  162  

:::::: The code at line 160 was first introduced by commit
:::::: c2e480ba822718190e58849b79a76db13c3dac18 powerpc/64: Add #defines for paca->soft_enabled flags

:::::: TO: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
:::::: CC: Michael Ellerman <mpe@ellerman.id.au>

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

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