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| author | Sami Kerola | 2017-05-16 10:18:24 +0200 |
|---|---|---|
| committer | Karel Zak | 2017-06-14 11:48:22 +0200 |
| commit | b1557fe98120132e6671924af4ed69f4e21d3de4 (patch) | |
| tree | 5b7a0e689fd4a09288f57c3a8eb4f24075ca65a3 /sys-utils/hwclock.c | |
| parent | libblkid: fix gcc-7 warning -Wint-in-bool-context (diff) | |
| download | kernel-qcow2-util-linux-b1557fe98120132e6671924af4ed69f4e21d3de4.tar.gz kernel-qcow2-util-linux-b1557fe98120132e6671924af4ed69f4e21d3de4.tar.xz kernel-qcow2-util-linux-b1557fe98120132e6671924af4ed69f4e21d3de4.zip | |
misc: fix ggc-7 fallthrough warnings
(Original patch and commit message edited by Rudi.)
gcc-7 adds -Wimplicit-fallthrough=3 to our default flag -Wextra.
This warning can be silenced by using comment /* fallthrough */
which is also recognized by other tools like coverity. There are
also other valid comments (see man gcc-7) but we consolidate this
style now.
We could have also used __attribute__((fallthrough)) but the comment
looks nice and does not need to be ifdef'ed for compatibility.
Reference: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=7652
Reference: https://developers.redhat.com/blog/2017/03/10/wimplicit-fallthrough-in-gcc-7/
Reviewed-by: Ruediger Meier <ruediger.meier@ga-group.nl>
Suggested-by: Karel Zak <kzak@redhat.com>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Diffstat (limited to 'sys-utils/hwclock.c')
| -rw-r--r-- | sys-utils/hwclock.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys-utils/hwclock.c b/sys-utils/hwclock.c index cfb6bcd6b..55f54f5ee 100644 --- a/sys-utils/hwclock.c +++ b/sys-utils/hwclock.c @@ -1209,7 +1209,8 @@ static void out_version(void) * fmt, ... ), show a usage information and terminate the program * afterwards. */ -static void usage(const struct hwclock_control *ctl, const char *fmt, ...) +static void __attribute__((__noreturn__)) +usage(const struct hwclock_control *ctl, const char *fmt, ...) { FILE *usageto; va_list ap; |