diff options
| -rw-r--r-- | net/ipv4/tcp_offload.c | 5 | ||||
| -rw-r--r-- | net/ipv6/tcpv6_offload.c | 5 |
2 files changed, 10 insertions, 0 deletions
diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c index a2b68a108eae..55aeec930140 100644 --- a/net/ipv4/tcp_offload.c +++ b/net/ipv4/tcp_offload.c @@ -276,6 +276,10 @@ static struct sk_buff **tcp4_gro_receive(struct sk_buff **head, struct sk_buff * __wsum wsum; __sum16 sum; + /* Don't bother verifying checksum if we're going to flush anyway. */ + if (NAPI_GRO_CB(skb)->flush) + goto skip_csum; + switch (skb->ip_summed) { case CHECKSUM_COMPLETE: if (!tcp_v4_check(skb_gro_len(skb), iph->saddr, iph->daddr, @@ -301,6 +305,7 @@ flush: break; } +skip_csum: return tcp_gro_receive(head, skb); } diff --git a/net/ipv6/tcpv6_offload.c b/net/ipv6/tcpv6_offload.c index c1097c798900..71923d14127a 100644 --- a/net/ipv6/tcpv6_offload.c +++ b/net/ipv6/tcpv6_offload.c @@ -39,6 +39,10 @@ static struct sk_buff **tcp6_gro_receive(struct sk_buff **head, __wsum wsum; __sum16 sum; + /* Don't bother verifying checksum if we're going to flush anyway. */ + if (NAPI_GRO_CB(skb)->flush) + goto skip_csum; + switch (skb->ip_summed) { case CHECKSUM_COMPLETE: if (!tcp_v6_check(skb_gro_len(skb), &iph->saddr, &iph->daddr, @@ -65,6 +69,7 @@ flush: break; } +skip_csum: return tcp_gro_receive(head, skb); } |