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Date: Mon, 20 May 2019 09:44:49 -0500 From: "Gustavo A. R. Silva" <gustavo@...eddedor.com> To: "David S. Miller" <davem@...emloft.net>, Hangbin Liu <liuhangbin@...il.com> Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, "Gustavo A. R. Silva" <gustavo@...eddedor.com> Subject: [PATCH net-next] macvlan: 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: drivers/net/macvlan.c: In function ‘macvlan_do_ioctl’: drivers/net/macvlan.c:839:6: warning: this statement may fall through [-Wimplicit-fallthrough=] if (!net_eq(dev_net(dev), &init_net)) ^ drivers/net/macvlan.c:841:2: note: here case SIOCGHWTSTAMP: ^~~~ 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> --- drivers/net/macvlan.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index 92efa93649f0..61550122b563 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -838,6 +838,7 @@ static int macvlan_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) case SIOCSHWTSTAMP: if (!net_eq(dev_net(dev), &init_net)) break; + /* fall through */ case SIOCGHWTSTAMP: if (netif_device_present(real_dev) && ops->ndo_do_ioctl) err = ops->ndo_do_ioctl(real_dev, &ifrr, cmd); -- 2.21.0
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