linux-kernel - Re: [PATCH net-next] vlan: Mark expected switch fall-through

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Message-Id: <20190520.113918.1763317826007760957.davem@davemloft.net>
Date:   Mon, 20 May 2019 11:39:18 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     gustavo@...eddedor.com
Cc:     liuhangbin@...il.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] vlan: Mark expected switch fall-through

From: "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Date: Mon, 20 May 2019 09:51:05 -0500

> In preparation to enabling -Wimplicit-fallthrough, mark switch
> cases where we are expecting to fall through.
> 
> This patch fixes the following warning:
> 
> net/8021q/vlan_dev.c: In function ‘vlan_dev_ioctl’:
> net/8021q/vlan_dev.c:374:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
>    if (!net_eq(dev_net(dev), &init_net))
>       ^
> net/8021q/vlan_dev.c:376:2: note: here
>   case SIOCGMIIPHY:
>   ^~~~
> 
> 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@...eddedor.com>

Also applied to 'net', thanks.