Hi Edward, On Thu, 9 May 2024 19:58:05 +0000 Edward Liaw <edliaw@xxxxxxxxxx> wrote: > _GNU_SOURCE is provided by lib.mk, so it should be dropped to prevent > redefinition warnings. > > Fixes: 809216233555 ("selftests/harness: remove use of LINE_MAX") I show Mathieu's comment on this[1]. I have no strong opinion on this, but if you conclude to remove or change this line, please apply same change to this patch. [1] https://lore.kernel.org/638a7831-493c-4917-9b22-5aa663e9ee84@xxxxxxxxxxxx > Signed-off-by: Edward Liaw <edliaw@xxxxxxxxxx> I also added trivial comments that coming from my personal and humble preferrence below. Other than the above and the below comments, Reviewed-by: SeongJae Park <sj@xxxxxxxxxx> > --- > tools/testing/selftests/damon/debugfs_target_ids_pid_leak.c | 3 --- > .../damon/debugfs_target_ids_read_before_terminate_race.c | 2 -- > 2 files changed, 5 deletions(-) > > diff --git a/tools/testing/selftests/damon/debugfs_target_ids_pid_leak.c b/tools/testing/selftests/damon/debugfs_target_ids_pid_leak.c > index 0cc2eef7d142..7a17a03d555c 100644 > --- a/tools/testing/selftests/damon/debugfs_target_ids_pid_leak.c > +++ b/tools/testing/selftests/damon/debugfs_target_ids_pid_leak.c > @@ -2,9 +2,6 @@ > /* > * Author: SeongJae Park <sj@xxxxxxxxxx> > */ > - > -#define _GNU_SOURCE > - > #include <fcntl.h> I'd prefer having one empty line between the comment and includes. > #include <stdbool.h> > #include <stdint.h> > diff --git a/tools/testing/selftests/damon/debugfs_target_ids_read_before_terminate_race.c b/tools/testing/selftests/damon/debugfs_target_ids_read_before_terminate_race.c > index b06f52a8ce2d..4aeac55ac93e 100644 > --- a/tools/testing/selftests/damon/debugfs_target_ids_read_before_terminate_race.c > +++ b/tools/testing/selftests/damon/debugfs_target_ids_read_before_terminate_race.c > @@ -2,8 +2,6 @@ > /* > * Author: SeongJae Park <sj@xxxxxxxxxx> > */ > -#define _GNU_SOURCE > - > #include <fcntl.h> Ditto. And I realize I also forgot adding one empty line before the above #define line. That's why I'm saying this is just a trivial comment :) > #include <stdbool.h> > #include <stdint.h> > -- > 2.45.0.118.g7fe29c98d7-goog Thanks, SJ