From: Tom Herbert <therbert@google.com>
To: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH net-next 4/5] udp: Add try convert checksum is case of skb_steal_sock
Date: Sun, 7 Sep 2014 22:26:28 -0700 [thread overview]
Message-ID: <1410153989-23837-5-git-send-email-therbert@google.com> (raw)
In-Reply-To: <1410153989-23837-1-git-send-email-therbert@google.com>
If an skb already has an associated socket that we can steal
in UDP receive then attempt checksum conversion before calling
udp_queue_rcv_skb.
Signed-off-by: Tom Herbert <therbert@google.com>
---
net/ipv4/udp.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index cd0db54..50d3b5c 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1769,6 +1769,10 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
if (unlikely(sk->sk_rx_dst != dst))
udp_sk_rx_dst_set(sk, dst);
+ if (udp_sk(sk)->convert_csum && uh->check && !IS_UDPLITE(sk))
+ skb_checksum_try_convert(skb, IPPROTO_UDP, uh->check,
+ inet_compute_pseudo);
+
ret = udp_queue_rcv_skb(sk, skb);
sock_put(sk);
/* a return value > 0 means to resubmit the input, but
--
2.1.0.rc2.206.gedb03e5
next prev parent reply other threads:[~2014-09-08 5:27 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-08 5:26 [PATCH net-next 0/5] net: Changes to GRO for encapsulation Tom Herbert
2014-09-08 5:26 ` [PATCH net-next 1/5] net: Fix GRE RX to use skb_transport_header for GRE header offset Tom Herbert
2014-09-08 10:37 ` Eric Dumazet
2014-09-08 5:26 ` [PATCH net-next 2/5] ipip: Add gro callbacks to ipip offload Tom Herbert
2014-09-08 5:26 ` [PATCH net-next 3/5] sit: Add gro callbacks to sit offload Tom Herbert
2014-09-08 11:55 ` Eric Dumazet
2014-09-08 5:26 ` Tom Herbert [this message]
2014-09-08 5:26 ` [PATCH net-next 5/5] net: Export inet_offloads and inet6_offloads Tom Herbert
2014-09-08 10:42 ` Eric Dumazet
2014-09-09 19:18 ` [PATCH net-next 0/5] net: Changes to GRO for encapsulation David Miller
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