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Date:   Wed, 25 Oct 2017 20:05:27 -0500
From:   "Gustavo A. R. Silva" <>
To:     Al Viro <>
        "Gustavo A. R. Silva" <>
Subject: [PATCH] ipc: sem: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <>
 ipc/sem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ipc/sem.c b/ipc/sem.c
index f909848..3e09295 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -1612,6 +1612,7 @@ SYSCALL_DEFINE4(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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