virtio_net: Fix fall-through warnings for Clang

In preparation to enable -Wimplicit-fallthrough for Clang, fix a warning
by explicitly adding a goto 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@kernel.org>
Link: https://lore.kernel.org/r/cb9b9534572bc476f4fb7b49a73dc8646b780c84.1605896060.git.gustavoars@kernel.org
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 508408f..1d83737 100644 (file)
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -732,6 +732,7 @@ static struct sk_buff *receive_small(struct net_device *dev,
                        fallthrough;
                case XDP_ABORTED:
                        trace_xdp_exception(vi->dev, xdp_prog, act);
+                       goto err_xdp;
                case XDP_DROP:
                        goto err_xdp;
                }