Messages in this thread | | | Date | Tue, 10 Dec 2019 19:23:42 +0800 | From | kbuild test robot <> | Subject | Re: [PATCH v16 13/25] mm: pagewalk: Don't lock PTEs for walk_page_range_novma() |
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Hi Steven,
I love your patch! Perhaps something to improve:
[auto build test WARNING on linus/master] [also build test WARNING on v5.5-rc1 next-20191209] [cannot apply to arm64/for-next/core tip/x86/mm] [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/Steven-Price/Generic-page-walk-and-ptdump/20191208-035831 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git ad910e36da4ca3a1bd436989f632d062dda0c921 reproduce: # apt-get install sparse # sparse version: v0.6.1-101-g82dee2e-dirty make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
>> include/linux/spinlock.h:378:9: sparse: sparse: context imbalance in 'walk_pte_range' - unexpected unlock
vim +/walk_pte_range +378 include/linux/spinlock.h
c2f21ce2e31286 Thomas Gleixner 2009-12-02 375 3490565b633c70 Denys Vlasenko 2015-07-13 376 static __always_inline void spin_unlock(spinlock_t *lock) c2f21ce2e31286 Thomas Gleixner 2009-12-02 377 { c2f21ce2e31286 Thomas Gleixner 2009-12-02 @378 raw_spin_unlock(&lock->rlock); c2f21ce2e31286 Thomas Gleixner 2009-12-02 379 } c2f21ce2e31286 Thomas Gleixner 2009-12-02 380
:::::: The code at line 378 was first introduced by commit :::::: c2f21ce2e31286a0a32f8da0a7856e9ca1122ef3 locking: Implement new raw_spinlock
:::::: TO: Thomas Gleixner <tglx@linutronix.de> :::::: CC: Thomas Gleixner <tglx@linutronix.de>
--- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation
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