kernel/sys: 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:

  kernel/sys.c:1748:6: warning: this statement may fall through [-Wimplicit-fallthrough=]

Link: http://lkml.kernel.org/r/20190114203347.17530-1-malat@debian.org
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/kernel/sys.c b/kernel/sys.c
index f7eb62eceb2437d18bd3f9a7c8f8287255627015..dc5d9e636d48575b308eba8ffc4c5a108a4e1c38 100644 (file)
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1747,6 +1747,7 @@ void getrusage(struct task_struct *p, int who, struct rusage *r)
 
                if (who == RUSAGE_CHILDREN)
                        break;
+               /* fall through */
 
        case RUSAGE_SELF:
                thread_group_cputime_adjusted(p, &tgutime, &tgstime);