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authorAlexander Duyck <aduyck@mirantis.com>2016-05-02 09:38:12 -0700
committerDavid S. Miller <davem@davemloft.net>2016-05-04 13:32:26 -0400
commitd7fb5a80492169cd737d51042f4ee03b09be0ef6 (patch)
tree86b2631c7d53100b87166f8b051447b5e9eb6987 /net/core/skbuff.c
parentf132ae7c46370c981412a68ccec9f2145812a9b6 (diff)
downloadlinux-d7fb5a80492169cd737d51042f4ee03b09be0ef6.tar.gz
gso: Do not perform partial GSO if number of partial segments is 1 or less
In the event that the number of partial segments is equal to 1 we don't really need to perform partial segmentation offload. As such we should skip multiplying the MSS and instead just clear the partial_segs value since it will not provide any gain to advertise the frame as being GSO when it is a single frame. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/skbuff.c')
-rw-r--r--net/core/skbuff.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 7a1d48983f81..b8dd2d2e2256 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3101,7 +3101,10 @@ struct sk_buff *skb_segment(struct sk_buff *head_skb,
*/
if (features & NETIF_F_GSO_PARTIAL) {
partial_segs = len / mss;
- mss *= partial_segs;
+ if (partial_segs > 1)
+ mss *= partial_segs;
+ else
+ partial_segs = 0;
}
headroom = skb_headroom(head_skb);