__net_timestamp(skb);
}
+static inline bool is_skb_forwardable(struct net_device *dev,
+ struct sk_buff *skb)
+{
+ unsigned int len;
+
+ if (!(dev->flags & IFF_UP))
+ return false;
+
+ len = dev->mtu + dev->hard_header_len + VLAN_HLEN;
+ if (skb->len <= len)
+ return true;
+
+ /* if TSO is enabled, we don't care about the length as the packet
+ * could be forwarded without being segmented before
+ */
+ if (skb_is_gso(skb))
+ return true;
+
+ return false;
+}
+
/**
* dev_forward_skb - loopback an skb to another netif
*
skb_orphan(skb);
nf_reset(skb);
- if (unlikely(!(dev->flags & IFF_UP) ||
- (skb->len > (dev->mtu + dev->hard_header_len + VLAN_HLEN)))) {
+ if (unlikely(!is_skb_forwardable(dev, skb))) {
atomic_long_inc(&dev->rx_dropped);
kfree_skb(skb);
return NET_RX_DROP;
u32 features;
/*
- * If device doesnt need skb->dst, release it right now while
+ * If device doesn't need skb->dst, release it right now while
* its hot in this cpu cache
*/
if (dev->priv_flags & IFF_XMIT_DST_RELEASE)
nskb->next = NULL;
/*
- * If device doesnt need nskb->dst, release it right now while
+ * If device doesn't need nskb->dst, release it right now while
* its hot in this cpu cache
*/
if (dev->priv_flags & IFF_XMIT_DST_RELEASE)
* when CONFIG_NET_CLS_ACT is? otherwise some useless instructions
* a compare and 2 stores extra right now if we dont have it on
* but have CONFIG_NET_CLS_ACT
- * NOTE: This doesnt stop any functionality; if you dont have
- * the ingress scheduler, you just cant add policies on ingress.
+ * NOTE: This doesn't stop any functionality; if you dont have
+ * the ingress scheduler, you just can't add policies on ingress.
*
*/
static int ing_filter(struct sk_buff *skb, struct netdev_queue *rxq)
* with netpoll's poll_napi(). Only the entity which
* obtains the lock and sees NAPI_STATE_SCHED set will
* actually make the ->poll() call. Therefore we avoid
- * accidently calling ->poll() when NAPI is not scheduled.
+ * accidentally calling ->poll() when NAPI is not scheduled.
*/
work = 0;
if (test_bit(NAPI_STATE_SCHED, &n->state)) {
if (dev->rtnl_link_ops)
continue;
- /* Push remaing network devices to init_net */
+ /* Push remaining network devices to init_net */
snprintf(fb_name, IFNAMSIZ, "dev%d", dev->ifindex);
err = dev_change_net_namespace(dev, &init_net, fb_name);
if (err) {