vlan: Mark expected switch fall-through

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@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Gustavo A. R. Silva 2019-05-20 09:51:05 -05:00 committed by David S. Miller
parent 02596252db
commit fa2c52be71

View File

@ -373,6 +373,7 @@ static int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
case SIOCSHWTSTAMP:
if (!net_eq(dev_net(dev), &init_net))
break;
/* fall through */
case SIOCGMIIPHY:
case SIOCGMIIREG:
case SIOCSMIIREG: