tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 4333a9b0b67bb4e8bcd91bdd80da80b0ec151162 commit: 4165994ac9672d91134675caa6de3645a9ace6c8 xfs: factor common AIL item deletion code date: 3 months ago config: i386-randconfig-s002-20200620 (attached as .config) compiler: gcc-9 (Debian 9.3.0-13) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-rc1-18-g27caae40-dirty git checkout 4165994ac9672d91134675caa6de3645a9ace6c8 # save the attached .config to linux build tree make W=1 C=1 ARCH=i386 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) 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(a)linux.com&gt; :::::: CC: Linus Torvalds <torvalds(a)linux-foundation.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org