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Subject[PATCH] ipc: annotate implicit fall through
There is a plan to build the kernel with -Wimplicit-fallthrough and
this place in the code produced a warning (W=1).

This commit remove the following warning:

ipc/sem.c:1683:6: warning: this statement may fall through [-Wimplicit-fallthrough=]

Signed-off-by: Mathieu Malaterre <>
ipc/sem.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/ipc/sem.c b/ipc/sem.c
index 745dc6187e84..0307012ab343 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -1682,6 +1682,7 @@ long ksys_semctl(int semid, int semnum, int cmd, unsigned long arg)
case IPC_SET:
if (copy_semid_from_user(&semid64, p, version))
return -EFAULT;
+ /* fall through */
case IPC_RMID:
return semctl_down(ns, semid, cmd, &semid64);
 \ /
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