[PATCH]: fix lro_gen_skb() alignment

[Andrew Gallatin <gallatin@myri.com>]

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The inet_lro.c:lro_gen_skb() function fails to include
NET_IP_ALIGN padding at the front of the sk_buffs it creates,
leading to alignment warnings on architectures which require
strict alignment (seen on sparc64).  The attached patch
adds NET_IP_ALIGN padding.

Signed off by: Andrew Gallatin <gallatin@myri.com>

Drew


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diff --git a/net/ipv4/inet_lro.c b/net/ipv4/inet_lro.c
index ac3b1d3..91e9371 100644
--- a/net/ipv4/inet_lro.c
+++ b/net/ipv4/inet_lro.c
@@ -401,10 +401,11 @@ static struct sk_buff *lro_gen_skb(struc
 	int data_len = len;
 	int hdr_len = min(len, hlen);
 
-	skb = netdev_alloc_skb(lro_mgr->dev, hlen);
+	skb = netdev_alloc_skb(lro_mgr->dev, hlen + NET_IP_ALIGN);
 	if (!skb)
 		return NULL;
 
+	skb_reserve(skb, NET_IP_ALIGN);
 	skb->len = len;
 	skb->data_len = len - hdr_len;
 	skb->truesize += true_size;