Hi Ritesh, I love your patch! Perhaps something to improve: [auto build test WARNING on ext4/dev] [also build test WARNING on linus/master v5.6-rc3 next-20200227] [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/Ritesh-Harjani/ext4-bmap-fiemap-conversion-to-use-iomap/20200227-204414 base: https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git dev reproduce: # apt-get install sparse # sparse version: v0.6.1-173-ge0787745-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@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> fs/ext4/extents.c:4918:24: sparse: sparse: symbol 'ext4_iomap_xattr_ops' was not declared. Should it be static? Please review and possibly fold the followup patch. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
