From patchwork Mon Feb 1 18:20:18 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Hemminger X-Patchwork-Id: 44213 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 4F2F6B7D57 for ; Tue, 2 Feb 2010 05:21:49 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755353Ab0BASVJ (ORCPT ); Mon, 1 Feb 2010 13:21:09 -0500 Received: from smtp1.linux-foundation.org ([140.211.169.13]:48094 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755257Ab0BASVF (ORCPT ); Mon, 1 Feb 2010 13:21:05 -0500 Received: from nehalam (pool-74-107-135-205.ptldor.fios.verizon.net [74.107.135.205]) (authenticated bits=0) by smtp1.linux-foundation.org (8.14.2/8.13.5/Debian-3ubuntu1.1) with ESMTP id o11IKN6w013528 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Mon, 1 Feb 2010 10:20:26 -0800 Date: Mon, 1 Feb 2010 10:20:18 -0800 From: Stephen Hemminger To: Jarek Poplawski Cc: Michael Breuer , David Miller , akpm@linux-foundation.org, flyboy@gmail.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Michael Chan , Don Fry , Francois Romieu , Matt Carlson Subject: Re: [PATCH] sky2: receive dma mapping error handling Message-ID: <20100201102018.7b597992@nehalam> In-Reply-To: <20100131221835.GA3317@del.dom.local> References: <20100128223447.GC3109@del.dom.local> <4B621316.8070308@majjas.com> <20100128225621.GD3109@del.dom.local> <4B6216B9.1010802@majjas.com> <20100128153643.0fca3c51@nehalam> <4B645EF4.4050701@majjas.com> <20100131003449.GA11935@del.dom.local> <4B650D53.2010607@majjas.com> <4B65D0F9.2020602@majjas.com> <4B65FD12.7090101@majjas.com> <20100131221835.GA3317@del.dom.local> Organization: Linux Foundation X-Mailer: Claws Mail 3.7.2 (GTK+ 2.18.3; x86_64-pc-linux-gnu) Mime-Version: 1.0 X-Spam-Status: No, hits=-5.927 required=5 tests=AWL, BAYES_00, FH_HOST_EQ_VERIZON_P, OSDL_HEADER_SUBJECT_BRACKETED, PATCH_SUBJECT_OSDL, RDNS_DYNAMIC X-Spam-Checker-Version: SpamAssassin 3.2.4-osdl_revision__1.47__ X-MIMEDefang-Filter: lf$Revision: 1.188 $ X-Scanned-By: MIMEDefang 2.63 on 140.211.169.13 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This fixes the fact that re->flags is always zero without causing other confusion. --- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html --- a/drivers/net/sky2.c 2010-02-01 10:07:42.676296236 -0800 +++ b/drivers/net/sky2.c 2010-02-01 10:18:12.575044064 -0800 @@ -1025,11 +1025,8 @@ static void sky2_prefetch_init(struct sk static inline struct sky2_tx_le *get_tx_le(struct sky2_port *sky2, u16 *slot) { struct sky2_tx_le *le = sky2->tx_le + *slot; - struct tx_ring_info *re = sky2->tx_ring + *slot; *slot = RING_NEXT(*slot, sky2->tx_ring_size); - re->flags = 0; - re->skb = NULL; le->ctrl = 0; return le; } @@ -1622,8 +1619,7 @@ static unsigned tx_le_req(const struct s return count; } -static void sky2_tx_unmap(struct pci_dev *pdev, - const struct tx_ring_info *re) +static void sky2_tx_unmap(struct pci_dev *pdev, struct tx_ring_info *re) { if (re->flags & TX_MAP_SINGLE) pci_unmap_single(pdev, pci_unmap_addr(re, mapaddr), @@ -1633,6 +1629,7 @@ static void sky2_tx_unmap(struct pci_dev pci_unmap_page(pdev, pci_unmap_addr(re, mapaddr), pci_unmap_len(re, maplen), PCI_DMA_TODEVICE); + re->flags = 0; } /* @@ -1839,6 +1836,7 @@ static void sky2_tx_complete(struct sky2 dev->stats.tx_packets++; dev->stats.tx_bytes += skb->len; + re->skb = NULL; dev_kfree_skb_any(skb); sky2->tx_next = RING_NEXT(idx, sky2->tx_ring_size);