From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 13 Oct 2011 21:12:46 +0000 (-0400)
Subject: sky2: fix skb truesize underestimation
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=7ae60b3f3b297b7f04025c93f1cb2275c3a1dfcd;p=openwrt%2Fstaging%2Fblogic.git

sky2: fix skb truesize underestimation

sky2 allocates a page per skb fragment. We must account
PAGE_SIZE increments on skb->truesize, not the actual frag length.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c
index 6895e3be260c..92634907bf8d 100644
--- a/drivers/net/ethernet/marvell/sky2.c
+++ b/drivers/net/ethernet/marvell/sky2.c
@@ -2486,7 +2486,7 @@ static void skb_put_frags(struct sk_buff *skb, unsigned int hdr_space,
 
 			frag->size = size;
 			skb->data_len += size;
-			skb->truesize += size;
+			skb->truesize += PAGE_SIZE;
 			skb->len += size;
 			length -= size;
 		}