From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hauke Mehrtens Subject: [PATCH] bgmac: fix unaligned accesses to network headers Date: Sat, 16 Feb 2013 15:32:34 +0100 Message-ID: <1361025154-11612-1-git-send-email-hauke@hauke-m.de> Cc: zajec5@gmail.com, netdev@vger.kernel.org, Hauke Mehrtens To: davem@davemloft.net Return-path: Received: from server19320154104.serverpool.info ([193.201.54.104]:34459 "EHLO hauke-m.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753236Ab3BPOco (ORCPT ); Sat, 16 Feb 2013 09:32:44 -0500 Sender: netdev-owner@vger.kernel.org List-ID: Without this patch I get many unaligned access warnings per packet, this patches fixes them all. This should improve performance ony some systems like mips. Signed-off-by: Hauke Mehrtens --- drivers/net/ethernet/broadcom/bgmac.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c index d341090..f9b1bc8 100644 --- a/drivers/net/ethernet/broadcom/bgmac.c +++ b/drivers/net/ethernet/broadcom/bgmac.c @@ -301,8 +301,9 @@ static int bgmac_dma_rx_read(struct bgmac *bgmac, struct bgmac_dma_ring *ring, bgmac_err(bgmac, "Found poisoned packet at slot %d, DMA issue!\n", ring->start); } else { - new_skb = netdev_alloc_skb(bgmac->net_dev, len); + new_skb = netdev_alloc_skb(bgmac->net_dev, len + 2); if (new_skb) { + skb_reserve(new_skb, 2); skb_put(new_skb, len); skb_copy_from_linear_data_offset(skb, BGMAC_RX_FRAME_OFFSET, new_skb->data, -- 1.7.10.4