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kdb: kdb_keyboard: mark expected switch fall-throughs

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

Notice that in this particular case, I replaced the code comments with
a proper "fall through" annotation, which is what GCC is expecting
to find.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
This commit is contained in:
Gustavo A. R. Silva 2018-08-04 23:18:25 -05:00 committed by Daniel Thompson
parent 9eb62f0e1b
commit 01cb37351b
1 changed files with 2 additions and 2 deletions
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4
kernel/debug/kdb/kdb_keyboard.c
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@ -173,11 +173,11 @@ int kdb_get_kbd_char(void)
case KT_LATIN:
if (isprint(keychar))
break; /* printable characters */
/* drop through */
/* fall through */
case KT_SPEC:
if (keychar == K_ENTER)
break;
/* drop through */
/* fall through */
default:
return -1; /* ignore unprintables */
}