Hi Shiyang, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on xfs-linux/for-next] [also build test WARNING on linux/master] [cannot apply to hnaz-mm/master linus/master v5.17-rc5 next-20220225] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Shiyang-Ruan/fsdax-introduce-fs-query-to-support-reflink/20220227-200849 base: https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git for-next config: i386-randconfig-a013 (https://download.01.org/0day-ci/archive/20220227/202202272359.2aizNPgB-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/a0ac78065bbb4fbb3e5477c32686eca3b9f0e1ef git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Shiyang-Ruan/fsdax-introduce-fs-query-to-support-reflink/20220227-200849 git checkout a0ac78065bbb4fbb3e5477c32686eca3b9f0e1ef # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> fs/dax.c:337:67: warning: parameter 'mapping' set but not used [-Wunused-but-set-parameter] static inline void dax_mapping_set_cow_flag(struct address_space *mapping) ^ 1 warning generated. vim +/mapping +337 fs/dax.c 328 329 /* 330 * Iterate through all mapped pfns represented by an entry, i.e. skip 331 * 'empty' and 'zero' entries. 332 */ 333 #define for_each_mapped_pfn(entry, pfn) \ 334 for (pfn = dax_to_pfn(entry); \ 335 pfn < dax_end_pfn(entry); pfn++) 336 > 337 static inline void dax_mapping_set_cow_flag(struct address_space *mapping) 338 { 339 mapping = (struct address_space *)PAGE_MAPPING_DAX_COW; 340 } 341 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
