From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: [PATCH v2] chelsio: use netdev_alloc_skb_ip_align Date: Wed, 20 Mar 2013 12:02:41 -0700 Message-ID: <20130320120241.19314ab6@nehalam.linuxnetplumber.net> References: <1363797199.3333.18.camel@edumazet-glaptop> <20130320113024.00377b99@nehalam.linuxnetplumber.net> <1363804952.3333.29.camel@edumazet-glaptop> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: David Miller , netdev To: Eric Dumazet Return-path: Received: from mail-da0-f42.google.com ([209.85.210.42]:42468 "EHLO mail-da0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755297Ab3CTTCr (ORCPT ); Wed, 20 Mar 2013 15:02:47 -0400 Received: by mail-da0-f42.google.com with SMTP id n15so1158346dad.29 for ; Wed, 20 Mar 2013 12:02:47 -0700 (PDT) In-Reply-To: <1363804952.3333.29.camel@edumazet-glaptop> Sender: netdev-owner@vger.kernel.org List-ID: Use netdev_alloc_sk_ip_align in the case where packet is copied. This handles case where NET_IP_ALIGN == 0 as well as adding required header padding. Signed-off-by: Stephen Hemminger --- a/drivers/net/ethernet/chelsio/cxgb/sge.c 2013-03-20 11:13:47.950986878 -0700 +++ b/drivers/net/ethernet/chelsio/cxgb/sge.c 2013-03-20 12:00:01.551115729 -0700 @@ -1046,11 +1046,10 @@ static inline struct sk_buff *get_packet const struct freelQ_ce *ce = &fl->centries[fl->cidx]; if (len < copybreak) { - skb = alloc_skb(len + 2, GFP_ATOMIC); + skb = netdev_alloc_skb_ip_align(NULL, len); if (!skb) goto use_orig_buf; - skb_reserve(skb, 2); /* align IP header */ skb_put(skb, len); pci_dma_sync_single_for_cpu(pdev, dma_unmap_addr(ce, dma_addr),