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authorAlexander Duyck <alexander.h.duyck@intel.com>2018-05-07 21:08:28 +0300
committerDavid S. Miller <davem@davemloft.net>2018-05-09 05:30:06 +0300
commitb21c034b3df833b5d9db1cfdc3938dbb0d7995c6 (patch)
tree8c9b1963de39e3d79a6ea5e6f80f0c5b4e528f6d /net/ipv4/udp_offload.c
parentdfec0ee22c0a4488e4f4c764b2720d3096920383 (diff)
downloadlinux-b21c034b3df833b5d9db1cfdc3938dbb0d7995c6.tar.xz
udp: Do not pass MSS as parameter to GSO segmentation
There is no point in passing MSS as a parameter for for the GSO segmentation call as it is already available via the shared info for the skb itself. Reviewed-by: Eric Dumazet <edumazet@google.com> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/udp_offload.c')
-rw-r--r--net/ipv4/udp_offload.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index 006257092f06..c1afcd2f1a76 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -189,14 +189,16 @@ EXPORT_SYMBOL(skb_udp_tunnel_segment);
struct sk_buff *__udp_gso_segment(struct sk_buff *gso_skb,
netdev_features_t features,
- unsigned int mss, __sum16 check)
+ __sum16 check)
{
struct sock *sk = gso_skb->sk;
unsigned int sum_truesize = 0;
struct sk_buff *segs, *seg;
unsigned int hdrlen;
struct udphdr *uh;
+ unsigned int mss;
+ mss = skb_shinfo(gso_skb)->gso_size;
if (gso_skb->len <= sizeof(*uh) + mss)
return ERR_PTR(-EINVAL);
@@ -244,7 +246,7 @@ static struct sk_buff *__udp4_gso_segment(struct sk_buff *gso_skb,
if (!can_checksum_protocol(features, htons(ETH_P_IP)))
return ERR_PTR(-EIO);
- return __udp_gso_segment(gso_skb, features, mss,
+ return __udp_gso_segment(gso_skb, features,
udp_v4_check(sizeof(struct udphdr) + mss,
iph->saddr, iph->daddr, 0));
}