From patchwork Mon Sep 11 15:13:30 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Olivier Matz X-Patchwork-Id: 28590 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 535F21B1B1; Mon, 11 Sep 2017 17:14:00 +0200 (CEST) Received: from proxy.6wind.com (host.76.145.23.62.rev.coltfrance.com [62.23.145.76]) by dpdk.org (Postfix) with ESMTP id E66E41AF03 for ; Mon, 11 Sep 2017 17:13:51 +0200 (CEST) Received: from glumotte.dev.6wind.com (unknown [10.16.0.195]) by proxy.6wind.com (Postfix) with ESMTP id EB26CCF32F for ; Mon, 11 Sep 2017 17:09:57 +0200 (CEST) From: Olivier Matz To: dev@dpdk.org Date: Mon, 11 Sep 2017 17:13:30 +0200 Message-Id: <20170911151333.5727-8-olivier.matz@6wind.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170911151333.5727-1-olivier.matz@6wind.com> References: <20170911151333.5727-1-olivier.matz@6wind.com> MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH 07/10] metrics: fix compilation with -Og 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" The compilation with gcc-6.3.0 and EXTRA_CFLAGS=-Og gives the following error: CC rte_metrics.o rte_metrics.c: In function ‘rte_metrics_reg_names’: rte_metrics.c:153:22: error: ‘entry’ may be used uninitialized in this function [-Werror=maybe-uninitialized] entry->idx_next_set = 0; ~~~~~~~~~~~~~~~~~~~~^~~ This is a false positive, gcc is not able to see that we always go in the loop at least once, initializing entry. Fix the warning by initializing entry to NULL. Signed-off-by: Olivier Matz --- lib/librte_metrics/rte_metrics.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/librte_metrics/rte_metrics.c b/lib/librte_metrics/rte_metrics.c index b66a72bb0..d9404001a 100644 --- a/lib/librte_metrics/rte_metrics.c +++ b/lib/librte_metrics/rte_metrics.c @@ -115,7 +115,7 @@ rte_metrics_reg_name(const char *name) int rte_metrics_reg_names(const char * const *names, uint16_t cnt_names) { - struct rte_metrics_meta_s *entry; + struct rte_metrics_meta_s *entry = NULL; struct rte_metrics_data_s *stats; const struct rte_memzone *memzone; uint16_t idx_name;