linux-kernel - [PATCH 3.16 101/294] net: remove open-coded skb_cow

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Date:   Mon, 06 Nov 2017 23:03:02 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org,
        "françois romieu" <romieu@...zoreil.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 3.16 101/294] net: remove open-coded skb_cow_head.

3.16.50-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: françois romieu <romieu@...zoreil.com>

commit a40e0a664bce465a3b8ad1d792153cef8ded9f7d upstream.

Signed-off-by: Francois Romieu <romieu@...zoreil.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 net/core/dev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2437,8 +2437,8 @@ struct sk_buff *__skb_gso_segment(struct
 
 		skb_warn_bad_offload(skb);
 
-		if (skb_header_cloned(skb) &&
-		    (err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC)))
+		err = skb_cow_head(skb, 0);
+		if (err < 0)
 			return ERR_PTR(err);
 	}