From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Kirsher Subject: [net] GRE: enable offloads for GRE Date: Thu, 10 Jul 2014 17:29:21 -0700 Message-ID: <1405038561-14852-1-git-send-email-jeffrey.t.kirsher@intel.com> Cc: Amritha Nambiar , netdev@vger.kernel.org, nhorman@redhat.com, sassmann@redhat.com, Joseph Gasparakis , Jeff Kirsher To: davem@davemloft.net Return-path: Received: from mga02.intel.com ([134.134.136.20]:40355 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751170AbaGKA3Y (ORCPT ); Thu, 10 Jul 2014 20:29:24 -0400 Sender: netdev-owner@vger.kernel.org List-ID: From: Amritha Nambiar To get offloads to work with Generic Routing Encapsulation (GRE), the outer transport header has to be reset after skb_push is done. This patch has the support for this fix and hence GRE offloading. Signed-off-by: Amritha Nambiar Signed-off-by: Joseph Gasparakis Tested-By: Jim Young Signed-off-by: Jeff Kirsher --- net/ipv4/gre_demux.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/ipv4/gre_demux.c b/net/ipv4/gre_demux.c index 4e9619b..0485bf7 100644 --- a/net/ipv4/gre_demux.c +++ b/net/ipv4/gre_demux.c @@ -68,6 +68,7 @@ void gre_build_header(struct sk_buff *skb, const struct tnl_ptk_info *tpi, skb_push(skb, hdr_len); + skb_reset_transport_header(skb); greh = (struct gre_base_hdr *)skb->data; greh->flags = tnl_flags_to_gre_flags(tpi->flags); greh->protocol = tpi->proto; -- 1.9.3