From patchwork Thu Feb 7 09:41:38 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ian Campbell X-Patchwork-Id: 218869 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 DFD752C0293 for ; Thu, 7 Feb 2013 20:41:50 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755390Ab3BGJlp (ORCPT ); Thu, 7 Feb 2013 04:41:45 -0500 Received: from smtp02.citrix.com ([66.165.176.63]:56517 "EHLO SMTP02.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755656Ab3BGJll (ORCPT ); Thu, 7 Feb 2013 04:41:41 -0500 X-IronPort-AV: E=Sophos;i="4.84,621,1355097600"; d="scan'208";a="6288520" Received: from accessns.citrite.net (HELO FTLPEX01CL02.citrite.net) ([10.9.154.239]) by FTLPIPO02.CITRIX.COM with ESMTP/TLS/AES128-SHA; 07 Feb 2013 09:41:39 +0000 Received: from ukmail1.uk.xensource.com (10.80.16.128) by smtprelay.citrix.com (10.13.107.79) with Microsoft SMTP Server id 14.2.318.1; Thu, 7 Feb 2013 04:41:38 -0500 Received: from cosworth.uk.xensource.com ([10.80.16.52] ident=ianc) by ukmail1.uk.xensource.com with esmtp (Exim 4.69) (envelope-from ) id 1U3Nz8-0001aY-OZ; Thu, 07 Feb 2013 09:41:38 +0000 From: Ian Campbell To: CC: , Ian Campbell Subject: [PATCH v2 4/4] netback: correct netbk_tx_err to handle wrap around. Date: Thu, 7 Feb 2013 09:41:38 +0000 Message-ID: <1360230098-28218-4-git-send-email-ian.campbell@citrix.com> X-Mailer: git-send-email 1.7.2.5 In-Reply-To: <1360230078.32479.41.camel@zakaz.uk.xensource.com> References: <1360230078.32479.41.camel@zakaz.uk.xensource.com> MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Signed-off-by: Ian Campbell Acked-by: Jan Beulich Cc: # 3.0+ --- drivers/net/xen-netback/netback.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c index dcb2d4d..2b9520c 100644 --- a/drivers/net/xen-netback/netback.c +++ b/drivers/net/xen-netback/netback.c @@ -880,7 +880,7 @@ static void netbk_tx_err(struct xenvif *vif, do { make_tx_response(vif, txp, XEN_NETIF_RSP_ERROR); - if (cons >= end) + if (cons == end) break; txp = RING_GET_REQUEST(&vif->tx, cons++); } while (1);