Re: [PATCH 058/141] xen-blkfront: Fix fall-through warnings for Clang

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On 11/20/20 1:32 PM, Gustavo A. R. Silva wrote:
> In preparation to enable -Wimplicit-fallthrough for Clang, fix a warning
> by explicitly adding a break 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>
> ---
>  drivers/block/xen-blkfront.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
> index 48629d3433b4..34b028be78ab 100644
> --- a/drivers/block/xen-blkfront.c
> +++ b/drivers/block/xen-blkfront.c
> @@ -2462,6 +2462,7 @@ static void blkback_changed(struct xenbus_device *dev,
>  			break;
>  		if (talk_to_blkback(dev, info))
>  			break;
> +		break;
>  	case XenbusStateInitialising:
>  	case XenbusStateInitialised:
>  	case XenbusStateReconfiguring:


Reviewed-by Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>


(for patch 138 as well)


Although I thought using 'fallthrough' attribute was the more common approach.


-boris




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