diff options
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index e8a8dc1..3c5fbfb 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1696,22 +1696,18 @@ static bool can_checksum_protocol(unsigned long features, __be16 protocol) static bool dev_can_checksum(struct net_device *dev, struct sk_buff *skb) { + __be16 protocol = skb->protocol; int features = dev->features; - if (vlan_tx_tag_present(skb)) + if (vlan_tx_tag_present(skb)) { features &= dev->vlan_features; - - if (can_checksum_protocol(features, skb->protocol)) - return true; - - if (skb->protocol == htons(ETH_P_8021Q)) { + } else if (protocol == htons(ETH_P_8021Q)) { struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data; - if (can_checksum_protocol(dev->features & dev->vlan_features, - veh->h_vlan_encapsulated_proto)) - return true; + protocol = veh->h_vlan_encapsulated_proto; + features &= dev->vlan_features; } - return false; + return can_checksum_protocol(features, protocol); } /** |