Re: [PATCH][next] ASoC: ti: davinci-mcasp: Fix fall-through warning for Clang

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On 28/05/2021 23:20, Gustavo A. R. Silva wrote:
> In preparation to enable -Wimplicit-fallthrough for Clang, fix a warning
> by explicitly adding a goto statement instead of letting the code fall
> through to the next case.
> 
> Link: https://github.com/KSPP/linux/issues/115
> Signed-off-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx>
> ---
> JFYI: We had thousands of these sorts of warnings and now we are down
>       to just 25 in linux-next. This is one of those last remaining
>       warnings.
> 
>  sound/soc/ti/davinci-mcasp.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/sound/soc/ti/davinci-mcasp.c b/sound/soc/ti/davinci-mcasp.c
> index b94220306d1a..587967720135 100644
> --- a/sound/soc/ti/davinci-mcasp.c
> +++ b/sound/soc/ti/davinci-mcasp.c
> @@ -2317,6 +2317,7 @@ static int davinci_mcasp_probe(struct platform_device *pdev)
>  		break;
>  	default:
>  		dev_err(&pdev->dev, "No DMA controller found (%d)\n", ret);
> +		goto err;

Would:
	fallthrough;

be enough to silence the warning? If so, then I would prefer this version.

>  	case -EPROBE_DEFER:
>  		goto err;
>  	}
> 

-- 
Péter



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