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Date:	Wed, 17 Sep 2014 09:04:45 -0400
From:	Neil Horman <>
Cc:	Neil Horman <>,
	Linux Kernel list <>,
	"David S. Miller" <>,
	Meelis Roos <>
Subject: [PATCH 2/2] 3c59x: Fix bad offset spec in skb_frag_dma_map

Recently aded the use of skb_frag_dma_map to 3c59x, but didn't realize it
automatically included the frag_offset internally, as well as provided an option
to specify an extra offset in the parameter list.  We need to specify an offset
of 0 in the parameter list to avoid skb corruption that results in lost

Signed-off-by: Neil Horman <>
CC: Linux Kernel list <>
CC: "David S. Miller" <>
CC: Meelis Roos <>
Tested-by: Meelis Roos <>
 drivers/net/ethernet/3com/3c59x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c
index 5621dab..0f59d68 100644
--- a/drivers/net/ethernet/3com/3c59x.c
+++ b/drivers/net/ethernet/3com/3c59x.c
@@ -2186,7 +2186,7 @@ boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev)
 			skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
 			dma_addr = skb_frag_dma_map(&VORTEX_PCI(vp)->dev, frag,
-						    frag->page_offset,
+						    0,
 			if (dma_mapping_error(&VORTEX_PCI(vp)->dev, dma_addr)) {

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