In 'xfsprogs-dev' source: /* db/dir2sf.c begin */ #define EOFF(f) bitize(offsetof(xfs_dir2_sf_entry_t, f)) const field_t dir2_sf_entry_flds[] = { { "namelen", FLDT_UINT8D, OI(EOFF(namelen)), C1, 0, TYP_NONE }, ... #define E3OFF(f) bitize(offsetof(xfs_dir2_sf_entry_t, f)) const field_t dir3_sf_entry_flds[] = { { "namelen", FLDT_UINT8D, OI(EOFF(namelen)), C1, 0, TYP_NONE }, ... /* db/dir2sf.c end */ The macro definitions of 'EOFF' and 'E3OFF' are same, so no matter to use either to seek field offset in 'dir3_sf_entry_flds'. But it seems the intent of defining 'E3OFF' macro is to be used in 'dir3_sf_entry_flds', and 'E3OFF' macro has not been used at any place of the 'xfsprogs-dev' source: /* command begin */ $ grep -r E3OFF /path/to/xfsprogs-dev/git/repository/ ./db/dir2sf.c:#define E3OFF(f) bitize(offsetof(xfs_dir2_sf_entry_t, f)) $ /* command end */ Above command shows the 'E3OFF' is only been defined but nerver been used, that is weird, so there has reason to suspect using 'EOFF' rather than 'E3OFF' in 'dir3_sf_entry_flds' is a typo, this patch fix it, there has no logical change in this commit at all. Signed-off-by: Xiaole He <hexiaole@xxxxxxxxxx> --- db/dir2sf.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/db/dir2sf.c b/db/dir2sf.c index 8165b79b..9f1880dc 100644 --- a/db/dir2sf.c +++ b/db/dir2sf.c @@ -246,9 +246,9 @@ const field_t dir3sf_flds[] = { #define E3OFF(f) bitize(offsetof(xfs_dir2_sf_entry_t, f)) const field_t dir3_sf_entry_flds[] = { - { "namelen", FLDT_UINT8D, OI(EOFF(namelen)), C1, 0, TYP_NONE }, - { "offset", FLDT_DIR2_SF_OFF, OI(EOFF(offset)), C1, 0, TYP_NONE }, - { "name", FLDT_CHARNS, OI(EOFF(name)), dir2_sf_entry_name_count, + { "namelen", FLDT_UINT8D, OI(E3OFF(namelen)), C1, 0, TYP_NONE }, + { "offset", FLDT_DIR2_SF_OFF, OI(E3OFF(offset)), C1, 0, TYP_NONE }, + { "name", FLDT_CHARNS, OI(E3OFF(name)), dir2_sf_entry_name_count, FLD_COUNT, TYP_NONE }, { "inumber", FLDT_DIR2_INOU, dir3_sf_entry_inumber_offset, C1, FLD_OFFSET, TYP_NONE }, -- 2.27.0