ARM: ep93xx: Mark expected switch fall-through

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@intel.com>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>

diff --git a/arch/arm/mach-ep93xx/crunch.c b/arch/arm/mach-ep93xx/crunch.c
index 1c9a4be8b5036d9fea7d0a8e9a001bccedb7cb52..1c05c5bf7e5c89331f9b72771334b819c4ec8a2c 100644 (file)
--- 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);