arch/sparc/include/asm/irqflags_64.h:52:9: sparse: sparse: context imbalance in 'split_huge_page_to_list' - different lock contexts for basic block

arch/sparc/include/asm/irqflags_64.h:52:9: sparse: sparse: context imbalance in 'split_huge_page_to_list' - different lock contexts for basic block

[kernel test robot]

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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:   c500bee1c5b2f1d59b1081ac879d73268ab0ff17
commit: b6769834aac1d467fa1c71277d15688efcbb4d76 mm/thp: narrow lru locking
date:   8 months ago
:::::: branch date: 33 hours ago
:::::: commit date: 8 months ago
config: sparc64-randconfig-s031-20210803 (attached as .config)
compiler: sparc64-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=sparc64 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: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
   mm/huge_memory.c:1901:12: sparse: sparse: context imbalance in '__pmd_trans_huge_lock' - wrong count at exit
   mm/huge_memory.c: note: in included file (through arch/sparc/include/asm/irqflags.h, include/linux/irqflags.h, include/asm-generic/cmpxchg-local.h, ...):
   arch/sparc/include/asm/irqflags_64.h:52:9: sparse: sparse: context imbalance in '__split_huge_page' - different lock contexts for basic block
>> arch/sparc/include/asm/irqflags_64.h:52:9: sparse: sparse: context imbalance in 'split_huge_page_to_list' - different lock contexts for basic block

vim +/split_huge_page_to_list +52 arch/sparc/include/asm/irqflags_64.h

f5e706ad886b6a5 include/asm-sparc/irqflags_64.h      Sam Ravnborg   2008-07-17  49  
18d85bc558edfa5 arch/sparc/include/asm/irqflags_64.h Steven Rostedt 2011-07-06  50  static inline notrace void arch_local_irq_enable(void)
f5e706ad886b6a5 include/asm-sparc/irqflags_64.h      Sam Ravnborg   2008-07-17  51  {
f5e706ad886b6a5 include/asm-sparc/irqflags_64.h      Sam Ravnborg   2008-07-17 @52  	__asm__ __volatile__(
f5e706ad886b6a5 include/asm-sparc/irqflags_64.h      Sam Ravnborg   2008-07-17  53  		"wrpr	0, %%pil"
f5e706ad886b6a5 include/asm-sparc/irqflags_64.h      Sam Ravnborg   2008-07-17  54  		: /* no outputs */
f5e706ad886b6a5 include/asm-sparc/irqflags_64.h      Sam Ravnborg   2008-07-17  55  		: /* no inputs */
f5e706ad886b6a5 include/asm-sparc/irqflags_64.h      Sam Ravnborg   2008-07-17  56  		: "memory"
f5e706ad886b6a5 include/asm-sparc/irqflags_64.h      Sam Ravnborg   2008-07-17  57  	);
f5e706ad886b6a5 include/asm-sparc/irqflags_64.h      Sam Ravnborg   2008-07-17  58  }
f5e706ad886b6a5 include/asm-sparc/irqflags_64.h      Sam Ravnborg   2008-07-17  59  

:::::: The code at line 52 was first introduced by commit
:::::: f5e706ad886b6a5eb59637830110b09ccebf01c5 sparc: join the remaining header files

:::::: TO: Sam Ravnborg <sam@ravnborg.org>
:::::: CC: David S. Miller <davem@davemloft.net>

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

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