Commit d7fb5a80 authored May 02, 2016 by Alexander Duyck Committed by David S. Miller May 04, 2016

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>

parent f132ae7c

net/core/skbuff.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -3101,7 +3101,10 @@ struct sk_buff skb_segment(struct sk_buff head_skb,
		*/
		if (features & NETIF_F_GSO_PARTIAL) {
		partial_segs = len / mss;
		if (partial_segs > 1)
		mss *= partial_segs;
		else
		partial_segs = 0;
		}

		headroom = skb_headroom(head_skb);