On 4/10/19 3:35 PM, Guenter Roeck wrote:
> On Wed, Apr 10, 2019 at 01:49:05PM -0500, Gustavo A. R. Silva wrote:
>> 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>
>
> Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>
>
Thank you, Guenter.
--
Gustavo
>> ---
>> 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
>>
