From patchwork Fri Jun 5 03:01:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Wei Hu (Xavier)" X-Patchwork-Id: 70864 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 51C66A034E; Fri, 5 Jun 2020 05:02:59 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 245251D60C; Fri, 5 Jun 2020 05:02:58 +0200 (CEST) Received: from huawei.com (szxga05-in.huawei.com [45.249.212.191]) by dpdk.org (Postfix) with ESMTP id 99FD81D608 for ; Fri, 5 Jun 2020 05:02:55 +0200 (CEST) Received: from DGGEMS410-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id C2490F53FC4FAFE12F4B for ; Fri, 5 Jun 2020 11:02:53 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by DGGEMS410-HUB.china.huawei.com (10.3.19.210) with Microsoft SMTP Server id 14.3.487.0; Fri, 5 Jun 2020 11:02:44 +0800 From: "Wei Hu (Xavier)" To: CC: Date: Fri, 5 Jun 2020 11:01:19 +0800 Message-ID: <1591326079-47091-1-git-send-email-xavier.huwei@huawei.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-Originating-IP: [10.69.192.56] X-CFilter-Loop: Reflected Subject: [dpdk-dev] [PATCH v2] app/testpmd: fix passing negative parameter to strerror X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" This patch fixes them by passing '-ret' to the function strerror() when ret is negative to fix NEGATIVE_RETURNS coverity defect warning. Coverity issue: In nic_stats_clear and nic_xstats_clear function: Argument cannot be negative (NEGATIVE_RETURNS) negative_returns: ret is passed to a parameter that cannot be negative. Fixes: da328f7f115a ("ethdev: change xstats reset function to return int") Fixes: 9eb974221f44 ("app/testpmd: fix statistics after reset") Cc: stable@dpdk.org Signed-off-by: Wei Hu (Xavier) --- v1 -> v2: 1. add a negative check for ret. 2. remove the internal coverity IDs in the commit log. 3. update the fixed patch's commit id and titile. --- app/test-pmd/config.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c index 5381207..016bcb0 100644 --- a/app/test-pmd/config.c +++ b/app/test-pmd/config.c @@ -244,12 +244,14 @@ nic_stats_clear(portid_t port_id) ret = rte_eth_stats_reset(port_id); if (ret != 0) { printf("%s: Error: failed to reset stats (port %u): %s", - __func__, port_id, strerror(ret)); + __func__, port_id, strerror(-ret)); return; } ret = rte_eth_stats_get(port_id, &ports[port_id].stats); if (ret != 0) { + if (ret < 0) + ret = -ret; printf("%s: Error: failed to get stats (port %u): %s", __func__, port_id, strerror(ret)); return; @@ -333,12 +335,14 @@ nic_xstats_clear(portid_t port_id) ret = rte_eth_xstats_reset(port_id); if (ret != 0) { printf("%s: Error: failed to reset xstats (port %u): %s", - __func__, port_id, strerror(ret)); + __func__, port_id, strerror(-ret)); return; } ret = rte_eth_stats_get(port_id, &ports[port_id].stats); if (ret != 0) { + if (ret < 0) + ret = -ret; printf("%s: Error: failed to get stats (port %u): %s", __func__, port_id, strerror(ret)); return;