netdev - [PATCH] net: reset gso header when the copied skb is linearized

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Message-Id: <1288045398-3110-1-git-send-email-fleitner@redhat.com>
Date:	Mon, 25 Oct 2010 20:23:18 -0200
From:	Flavio Leitner <fleitner@...hat.com>
To:	netdev <netdev@...r.kernel.org>
Cc:	Flavio Leitner <fleitner@...hat.com>
Subject: [PATCH] net: reset gso header when the copied skb is linearized

The gso header is incorrect when the copied skb is
linearized. This patch creates another helper function
to copy the gso header when it is appropriated

Signed-off-by: Flavio Leitner <fleitner@...hat.com>
---
 net/core/skbuff.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 104f844..54a2d3a 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -649,6 +649,12 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 	if (skb_mac_header_was_set(new))
 		new->mac_header	      += offset;
 #endif
+}
+
+static void copy_skb_header_gso(struct sk_buff *new, const struct sk_buff *old)
+{
+	copy_skb_header(new, old);
+
 	skb_shinfo(new)->gso_size = skb_shinfo(old)->gso_size;
 	skb_shinfo(new)->gso_segs = skb_shinfo(old)->gso_segs;
 	skb_shinfo(new)->gso_type = skb_shinfo(old)->gso_type;
@@ -740,7 +746,7 @@ struct sk_buff *pskb_copy(struct sk_buff *skb, gfp_t gfp_mask)
 		skb_clone_fraglist(n);
 	}
 
-	copy_skb_header(n, skb);
+	copy_skb_header_gso(n, skb);
 out:
 	return n;
 }
-- 
1.7.3.1

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