lkml.org 
[lkml]   [2020]   [Jul]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
Subjectarch/x86/include/asm/preempt.h:79:9: sparse: sparse: context imbalance in 'xfs_iflush_abort' - wrong count at exit
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 11ba468877bb23f28956a35e896356252d63c983
commit: 4165994ac9672d91134675caa6de3645a9ace6c8 xfs: factor common AIL item deletion code
date: 4 months ago
config: i386-randconfig-s001-20200713 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-14) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.2-37-gc9676a3b-dirty
git checkout 4165994ac9672d91134675caa6de3645a9ace6c8
# 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 <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)

>> arch/x86/include/asm/preempt.h:79:9: sparse: sparse: context imbalance in 'xfs_iflush_abort' - wrong count at exit

vim +/xfs_iflush_abort +79 arch/x86/include/asm/preempt.h

c2daa3bed53a81 Peter Zijlstra 2013-08-14 72
c2daa3bed53a81 Peter Zijlstra 2013-08-14 73 /*
c2daa3bed53a81 Peter Zijlstra 2013-08-14 74 * The various preempt_count add/sub methods
c2daa3bed53a81 Peter Zijlstra 2013-08-14 75 */
c2daa3bed53a81 Peter Zijlstra 2013-08-14 76
c2daa3bed53a81 Peter Zijlstra 2013-08-14 77 static __always_inline void __preempt_count_add(int val)
c2daa3bed53a81 Peter Zijlstra 2013-08-14 78 {
b3ca1c10d7b32f Christoph Lameter 2014-04-07 @79 raw_cpu_add_4(__preempt_count, val);
c2daa3bed53a81 Peter Zijlstra 2013-08-14 80 }
c2daa3bed53a81 Peter Zijlstra 2013-08-14 81

:::::: The code at line 79 was first introduced by commit
:::::: b3ca1c10d7b32fdfdfaf5484eda486323f52d9be percpu: add raw_cpu_ops

:::::: TO: Christoph Lameter <cl@linux.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[unhandled content-type:application/gzip]
\
 
 \ /
  Last update: 2020-07-13 05:05    [W:0.066 / U:0.416 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site