From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Wed, 19 Oct 2011 23:00:23 +0000 (+0000)
Subject: bnx2x: fix skb truesize underestimation
X-Git-Tag: v2.6.39-400.9.0~423^2~19^2~11^2~565
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=39c2069f05c94c691719ef0f211cafa3f9380cf9;p=users%2Fjedix%2Flinux-maple.git

bnx2x: fix skb truesize underestimation

bnx2x allocates a full page per fragment.

We must account in skb->truesize, the size of the fragment, not the used
part of it.

(cherry picked from commit e1ac50f64691de9a095ac5d73cb8ac73d3d17dba)
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
---

diff --git a/drivers/net/bnx2x/bnx2x_cmn.c b/drivers/net/bnx2x/bnx2x_cmn.c
index 3871388919da..c072c6713c22 100644
--- a/drivers/net/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/bnx2x/bnx2x_cmn.c
@@ -452,7 +452,7 @@ static int bnx2x_fill_frag_skb(struct bnx2x *bp, struct bnx2x_fastpath *fp,
 		skb_fill_page_desc(skb, j, old_rx_pg.page, 0, frag_len);
 
 		skb->data_len += frag_len;
-		skb->truesize += frag_len;
+		skb->truesize += SGE_PAGE_SIZE * PAGES_PER_SGE;
 		skb->len += frag_len;
 
 		frag_size -= frag_len;