[PATCH] ARM: ep93xx: Mark expected switch fall-through

From: Gustavo A. R. Silva
Date: Wed Aug 07 2019 - 23:01:55 EST


Mark switch cases where we are expecting to fall through.

Fix the following warnings (Building: arm-ep93xx_defconfig arm):

arch/arm/mach-ep93xx/crunch.c: In function 'crunch_do':
arch/arm/mach-ep93xx/crunch.c:46:3: warning: this statement may
fall through [-Wimplicit-fallthrough=]
memset(crunch_state, 0, sizeof(*crunch_state));
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/mach-ep93xx/crunch.c:53:2: note: here
case THREAD_NOTIFY_EXIT:
^~~~

Notice that, in this particular case, the code comment is
modified in accordance with what GCC is expecting to find.

Reported-by: kbuild test robot <lkp@xxxxxxxxx>
Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
---
arch/arm/mach-ep93xx/crunch.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-ep93xx/crunch.c b/arch/arm/mach-ep93xx/crunch.c
index 1c9a4be8b503..1c05c5bf7e5c 100644
--- a/arch/arm/mach-ep93xx/crunch.c
+++ b/arch/arm/mach-ep93xx/crunch.c
@@ -49,6 +49,7 @@ static int crunch_do(struct notifier_block *self, unsigned long cmd, void *t)
* FALLTHROUGH: Ensure we don't try to overwrite our newly
* initialised state information on the first fault.
*/
+ /* Fall through */

case THREAD_NOTIFY_EXIT:
crunch_task_release(thread);
--
2.22.0