[Intel-wired-lan] [PATCH 1/6] igb: mark expected switch fall-through

Gustavo A. R. Silva gustavo at embeddedor.com
Wed Apr 24 16:42:45 UTC 2019


Hi Jeff,

I just wanted to check if this series has already been applied somewhere.

Thanks
--
Gustavo

On 3/29/19 6:38 PM, Jeff Kirsher wrote:
> From: "Gustavo A. R. Silva" <gustavo at embeddedor.com>
> 
> In preparation to enabling -Wimplicit-fallthrough, mark switch cases
> where we are expecting to fall through.
> 
> This patch fixes the following warning:
> 
> drivers/net/ethernet/intel/igb/igb_main.c: In function ‘__igb_notify_dca’:
> drivers/net/ethernet/intel/igb/igb_main.c:6694:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
>    if (dca_add_requester(dev) == 0) {
>       ^
> drivers/net/ethernet/intel/igb/igb_main.c:6701:2: note: here
>   case DCA_PROVIDER_REMOVE:
>   ^~~~
> 
> 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 at embeddedor.com>
> ---
>  drivers/net/ethernet/intel/igb/igb_main.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
> index 834e879e1d57..e8042b0254bc 100644
> --- a/drivers/net/ethernet/intel/igb/igb_main.c
> +++ b/drivers/net/ethernet/intel/igb/igb_main.c
> @@ -6701,7 +6701,7 @@ static int __igb_notify_dca(struct device *dev, void *data)
>  			igb_setup_dca(adapter);
>  			break;
>  		}
> -		/* Fall Through since DCA is disabled. */
> +		/* Fall Through - since DCA is disabled. */
>  	case DCA_PROVIDER_REMOVE:
>  		if (adapter->flags & IGB_FLAG_DCA_ENABLED) {
>  			/* without this a class_device is left
> 


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