From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id D4B192A5B for ; Mon, 23 Jan 2017 08:46:04 +0100 (CET) Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga102.fm.intel.com with ESMTP; 22 Jan 2017 23:46:04 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.33,273,1477983600"; d="scan'208";a="51485828" Received: from yliu-dev.sh.intel.com ([10.239.67.162]) by orsmga004.jf.intel.com with ESMTP; 22 Jan 2017 23:46:03 -0800 From: Yuanhan Liu To: Jingjing Wu Cc: Yuanhan Liu , dpdk stable Date: Mon, 23 Jan 2017 15:47:02 +0800 Message-Id: <1485157675-32114-27-git-send-email-yuanhan.liu@linux.intel.com> X-Mailer: git-send-email 1.9.0 In-Reply-To: <1485157675-32114-1-git-send-email-yuanhan.liu@linux.intel.com> References: <1485157675-32114-1-git-send-email-yuanhan.liu@linux.intel.com> Subject: [dpdk-stable] patch 'net/i40e/base: fix division by zero' has been queued to stable release 16.11.1 X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 Jan 2017 07:46:05 -0000 Hi, FYI, your patch has been queued to stable release 16.11.1 Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet. It will be pushed if I get no objections before 01/28/17. So please shout if anyone has objections. --- Note 16.11 is a LTS release. v16.11.1 is planned to be released shortly (about 2-3 weeks) after v17.02. --- Thanks. --yliu --- >>From c37b4644a0a5e0aff793739d07587c0e004bce21 Mon Sep 17 00:00:00 2001 From: Jingjing Wu Date: Sat, 10 Dec 2016 19:24:50 +0800 Subject: [PATCH] net/i40e/base: fix division by zero [ upstream commit 5a26067443621bf77e582be69b433540f7e657a8 ] For some cases when reading from device are incorrect or image is incorrect, this part of code causes crash due to division by zero. Fixes: 8db9e2a1b232 ("i40e: base driver") Signed-off-by: Jingjing Wu --- drivers/net/i40e/base/i40e_common.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/i40e/base/i40e_common.c b/drivers/net/i40e/base/i40e_common.c index 02d9277..9a7c5e1 100644 --- a/drivers/net/i40e/base/i40e_common.c +++ b/drivers/net/i40e/base/i40e_common.c @@ -3879,8 +3879,10 @@ STATIC void i40e_parse_discover_capabilities(struct i40e_hw *hw, void *buff, /* partition id is 1-based, and functions are evenly spread * across the ports as partitions */ - hw->partition_id = (hw->pf_id / hw->num_ports) + 1; - hw->num_partitions = num_functions / hw->num_ports; + if (hw->num_ports != 0) { + hw->partition_id = (hw->pf_id / hw->num_ports) + 1; + hw->num_partitions = num_functions / hw->num_ports; + } /* additional HW specific goodies that might * someday be HW version specific -- 1.9.0