Hi Al, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git headers.unaligned head: 959598f725aa7721a4bad53c2e997c7255ff32dc commit: 959598f725aa7721a4bad53c2e997c7255ff32dc [2/2] move asm/unaligned.h to linux/unaligned.h config: x86_64-randconfig-123-20231214 (https://download.01.org/0day-ci/archive/20231214/202312140955.cqLj4SLn-lkp@xxxxxxxxx/config) compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231214/202312140955.cqLj4SLn-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202312140955.cqLj4SLn-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) drivers/input/touchscreen/hynitron_cstxxx.c: note: in included file: >> include/linux/unaligned.h:119:16: sparse: sparse: cast truncates bits from constant value (aa01a0 becomes a0) >> include/linux/unaligned.h:120:20: sparse: sparse: cast truncates bits from constant value (aa01 becomes 1) >> include/linux/unaligned.h:119:16: sparse: sparse: cast truncates bits from constant value (ab00d0 becomes d0) >> include/linux/unaligned.h:120:20: sparse: sparse: cast truncates bits from constant value (ab00 becomes 0) vim +119 include/linux/unaligned.h 803f4e1eab7a89 include/asm-generic/unaligned.h Arnd Bergmann 2021-05-08 116 803f4e1eab7a89 include/asm-generic/unaligned.h Arnd Bergmann 2021-05-08 117 static inline void __put_unaligned_le24(const u32 val, u8 *p) 803f4e1eab7a89 include/asm-generic/unaligned.h Arnd Bergmann 2021-05-08 118 { 803f4e1eab7a89 include/asm-generic/unaligned.h Arnd Bergmann 2021-05-08 @119 *p++ = val; 803f4e1eab7a89 include/asm-generic/unaligned.h Arnd Bergmann 2021-05-08 @120 *p++ = val >> 8; 803f4e1eab7a89 include/asm-generic/unaligned.h Arnd Bergmann 2021-05-08 121 *p++ = val >> 16; 803f4e1eab7a89 include/asm-generic/unaligned.h Arnd Bergmann 2021-05-08 122 } 803f4e1eab7a89 include/asm-generic/unaligned.h Arnd Bergmann 2021-05-08 123 :::::: The code at line 119 was first introduced by commit :::::: 803f4e1eab7a8938ba3a3c30dd4eb5e9eeef5e63 asm-generic: simplify asm/unaligned.h :::::: TO: Arnd Bergmann <arnd@xxxxxxxx> :::::: CC: Arnd Bergmann <arnd@xxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki