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SubjectRe: [PATCH] iio: mma8452: mark expected switch fall-through
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On 2/20/19 6:17 AM, Jonathan Cameron wrote:
> On Mon, 11 Feb 2019 16:23:18 -0600
> "Gustavo A. R. Silva" <gustavo@embeddedor.com> wrote:
>
>> In preparation to enabling -Wimplicit-fallthrough, mark switch
>> cases where we are expecting to fall through.
>>
>> This patch fixes the following warning:
>>
>> drivers/iio/accel/mma8452.c: In function ‘mma8452_probe’:
>> drivers/iio/accel/mma8452.c:1581:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
>> if (ret == data->chip_info->chip_id)
>> ^
>> drivers/iio/accel/mma8452.c:1584:2: note: here
>> default:
>> ^~~~~~~
>>
>> Warning level 3 was used: -Wimplicit-fallthrough=3
>>
>> Notice that, in this particular case, the code comment is modified
>> in accordance with what GCC is expecting to find.
>>
>> This patch is part of the ongoing efforts to enable
>> -Wimplicit-fallthrough.
>>
>> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
> I know Peter probably won't like this, as it doesn't
> read a as well, with the else dropped, but I'm going to take
> it as we have had a lot of bugs caught by this code and this
> is generating a false positive.
>
> Applied to the togreg branch of iio.git and pushed out as testing
> for the autobuilders to play with it.
>

Thanks, Jonathan.

--
Gustavo

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