In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.
This patch fixes the following warnings:
drivers/watchdog/machzwd.c: In function ‘zf_set_timer’:
./arch/x86/include/asm/io.h:355:14: warning: this statement may fall through [-Wimplicit-fallthrough=]
#define outw outw
drivers/watchdog/machzwd.c:80:53: note: in expansion of macro ‘outw’
#define zf_writew(port, data) { outb(port, INDEX); outw(data, DATA_W); }
^~~~
drivers/watchdog/machzwd.c:179:3: note: in expansion of macro ‘zf_writew’
zf_writew(COUNTER_1, new);
^~~~~~~~~
drivers/watchdog/machzwd.c:180:2: note: here
case WD2:
^~~~
Warning level 3 was used: -Wimplicit-fallthrough=3
This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.
Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
---
drivers/watchdog/machzwd.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/watchdog/machzwd.c b/drivers/watchdog/machzwd.c
index 88d823d87a4b..108928dbc754 100644
--- a/drivers/watchdog/machzwd.c
+++ b/drivers/watchdog/machzwd.c
@@ -177,6 +177,7 @@ static inline void zf_set_timer(unsigned short new, unsigned char n)
switch (n) {
case WD1:
zf_writew(COUNTER_1, new);
+ /* fall through */
case WD2:
zf_writeb(COUNTER_2, new > 0xff ? 0xff : new);
default:
--
2.21.0
