commit 79ff1db6d9661974186d51c1ef14d1cab521df49
author alex.bluesman.smirnov@gmail.com <alex.bluesman.smirnov@gmail.com> Tue Jul 10 21:22:45 2012 +0000
committer David S. Miller <davem@davemloft.net> Thu Jul 12 07:54:45 2012 -0700
tree 0df7e86ce570122dd302b1fe2a26cd59afd23621
parent e885a47a474fe53ed7d952af4b6e9a5cf86d9a07

6lowpan: get extra headroom in allocated frame

Use netdev_alloc_skb_ip_align() instead of alloc_skb() to get some
extra headroom in case we need to forward this frame in a tunnel or
something else.

Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ieee802154/6lowpan.c

diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index b872515..ae3f4eb 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -661,8 +661,8 @@
 	frame->tag = tag;
 
 	/* allocate buffer for frame assembling */
-	frame->skb = alloc_skb(frame->length +
-			       sizeof(struct ipv6hdr), GFP_ATOMIC);
+	frame->skb = netdev_alloc_skb_ip_align(skb->dev, frame->length +
+					       sizeof(struct ipv6hdr));
 
 	if (!frame->skb)
 		goto skb_err;