On Mon, Jun 03, 2024 at 02:42:20PM +0200, Carlos Maiolino wrote: > > > diff --git a/repair/progress.h b/repair/progress.h > > index 0b06b2c4f43f..c09aa69413ac 100644 > > --- a/repair/progress.h > > +++ b/repair/progress.h > > @@ -38,7 +38,7 @@ extern void summary_report(void); > > extern int set_progress_msg(int report, uint64_t total); > > extern uint64_t print_final_rpt(void); > > extern char *timestamp(struct xfs_mount *mp, int end, int phase, char *buf); > > -extern char *duration(time_t val, char *buf); > > +char *duration(time_t val, char *buf) __attribute__((nonnull(2))); > > Once nonnull() is used here, shouldn't we also set -Wnonnull to CFLAGS? Already set via -Wall, at least if you're using gcc 12.2: -Wnonnull Warn about passing a null pointer for arguments marked as requiring a non-null value by the "nonnull" function attribute. -Wnonnull is included in -Wall and -Wformat. It can be disabled with the -Wno-nonnull option. https://git.kernel.org/pub/scm/fs/xfs/xfsprogs-dev.git/tree/include/builddefs.in?h=for-next#n113 > Please don't take it as a review, it's just a question that came to my mind as I don't fully > understand the implications of using nonnull here. <nod> --D > Carlos >