From: Brice Goglin <brice@myri.com>
Date: Tue, 9 Dec 2008 08:14:27 +0000 (-0800)
Subject: myri10ge: check fragmentation in LRO get_frag_header()
X-Git-Tag: upstream/snapshot3+hdmi~21169^2~274
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=bcb09dc276e706ed6f22813ba774797125f3da0a;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

myri10ge: check fragmentation in LRO get_frag_header()

Add a fragmentation check to myri10ge's LRO get_frag_header() callback.

Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Andrew Gallatin <gallatin@myri.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index 4510be1..f017c77 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -2229,6 +2229,8 @@ myri10ge_get_frag_header(struct skb_frag_struct *frag, void **mac_hdr,
 	*ip_hdr = iph;
 	if (iph->protocol != IPPROTO_TCP)
 		return -1;
+	if (iph->frag_off & htons(IP_MF | IP_OFFSET))
+		return -1;
 	*hdr_flags |= LRO_TCP;
 	*tcpudp_hdr = (u8 *) (*ip_hdr) + (iph->ihl << 2);