From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751600Ab3C0JUu (ORCPT ); Wed, 27 Mar 2013 05:20:50 -0400 Received: from mx1.redhat.com ([209.132.183.28]:42503 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750840Ab3C0JUs (ORCPT ); Wed, 27 Mar 2013 05:20:48 -0400 From: Jason Wang To: davem@davemloft.net, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: mst@redhat.com, Jason Wang , Eric Dumazet Subject: [PATCH net-next 1/3] net: core: let skb_partial_csum_set() set transport header Date: Wed, 27 Mar 2013 17:11:20 +0800 Message-Id: <1364375482-7439-1-git-send-email-jasowang@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org For untrusted packets with partial checksum, we need to set the transport header for precise packet length estimation. We can just let skb_pratial_csum_set() to do this to avoid extra call to skb_flow_dissect() and simplify the caller. Cc: Eric Dumazet Signed-off-by: Jason Wang --- net/core/skbuff.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 31c6737..ba64614 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -3370,6 +3370,7 @@ bool skb_partial_csum_set(struct sk_buff *skb, u16 start, u16 off) skb->ip_summed = CHECKSUM_PARTIAL; skb->csum_start = skb_headroom(skb) + start; skb->csum_offset = off; + skb_set_transport_header(skb, start); return true; } EXPORT_SYMBOL_GPL(skb_partial_csum_set); -- 1.7.1