[kbuild-all] [lkp] [+573 bytes kernel size regression] [i386-tinyconfig] [00f2dfd8c2] open: introduce openat2(2) syscall

FYI, we noticed a +573 bytes kernel size regression due to commit: commit: 00f2dfd8c2a40f6dd7a74eae598a174484d848c4 (open: introduce openat2(2) syscall) Details as below (size data is obtained by `nm --size-sort vmlinux`): 97a4cce0: namei: LOOKUP_{IN_ROOT,BENEATH}: permit limited ".." resolution 00f2dfd8: open: introduce openat2(2) syscall +-----------------------+----------+----------+-------+ | symbol | 97a4cce0 | 00f2dfd8 | delta | +-----------------------+----------+----------+-------+ | bzImage | 439168 | 439424 | 256 | | nm.t.build_open_flags | 214 | 349 | 135 | | nm.T.__se_sys_openat2 | 0 | 122 | 122 | | nm.T.sys_openat2 | 0 | 122 | 122 | | nm.t.do_sys_openat2 | 0 | 116 | 116 | | nm.t.build_open_how | 0 | 78 | 78 | | nm.T.file_open_name | 41 | 73 | 32 | | nm.T.file_open_root | 52 | 84 | 32 | | nm.D.sys_call_table | 1744 | 1752 | 8 | | nm.T.__se_sys_openat | 26 | 23 | -3 | | nm.T.sys_openat | 26 | 23 | -3 | | nm.T.__se_sys_open | 27 | 24 | -3 | | nm.T.sys_open | 27 | 24 | -3 | | nm.T.do_sys_open | 121 | 61 | -60 | +-----------------------+----------+----------+-------+ Thanks, Kbuild test robot