Hi Kirill, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on cifs/for-next] [also build test ERROR on miklos-vfs/overlayfs-next linus/master v5.6-rc3 next-20200226] [cannot apply to ext4/dev tip/x86/asm] [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/Kirill-Tkhai/fs-ext4-Physical-blocks-placement-hint-for-fallocate-0-fallocate2-TP-defrag/20200227-022547 base: git://git.samba.org/sfrench/cifs-2.6.git for-next config: x86_64-allmodconfig (attached as .config) compiler: gcc-7 (Debian 7.5.0-5) 7.5.0 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot All errors (new ones prefixed by >>): arch/x86/ia32/sys_ia32.c: In function '__do_compat_sys_x86_fallocate2': >> arch/x86/ia32/sys_ia32.c:240:16: error: 'physical_hi' undeclared (first use in this function); did you mean 'physical_mask'? ((u64)physical_hi << 32) | physical_lo); ^~~~~~~~~~~ physical_mask arch/x86/ia32/sys_ia32.c:240:16: note: each undeclared identifier is reported only once for each function it appears in arch/x86/ia32/sys_ia32.c:240:37: error: 'physical_lo' undeclared (first use in this function); did you mean 'physical_hi'? ((u64)physical_hi << 32) | physical_lo); ^~~~~~~~~~~ physical_hi arch/x86/ia32/sys_ia32.c:241:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ vim +240 arch/x86/ia32/sys_ia32.c 232 233 COMPAT_SYSCALL_DEFINE6(x86_fallocate2, int, fd, int, mode, 234 unsigned int, offset_lo, unsigned int, offset_hi, 235 unsigned int, len_lo, unsigned int, len_hi, 236 unsigned int physical_lo, unsigned int physical_hi) 237 { 238 return ksys_fallocate2(fd, mode, ((u64)offset_hi << 32) | offset_lo, 239 ((u64)len_hi << 32) | len_lo, > 240 ((u64)physical_hi << 32) | physical_lo); 241 } 242 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org