From d7fb5a80492169cd737d51042f4ee03b09be0ef6 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Mon, 2 May 2016 09:38:12 -0700 Subject: [PATCH] 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 Signed-off-by: David S. Miller --- net/core/skbuff.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) 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); -- 2.11.0