From mboxrd@z Thu Jan 1 00:00:00 1970 From: Neil Horman Subject: [PATCH 2/2] 3c59x: Fix bad offset spec in skb_frag_dma_map Date: Wed, 17 Sep 2014 09:04:45 -0400 Message-ID: <1410959085-7351-2-git-send-email-nhorman@tuxdriver.com> References: <1410959085-7351-1-git-send-email-nhorman@tuxdriver.com> Cc: Neil Horman , Linux Kernel list , "David S. Miller" , Meelis Roos To: netdev@vger.kernel.org Return-path: In-Reply-To: <1410959085-7351-1-git-send-email-nhorman@tuxdriver.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org 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 connections. 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, frag->size, DMA_TO_DEVICE); if (dma_mapping_error(&VORTEX_PCI(vp)->dev, dma_addr)) { -- 1.9.3