From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from proxy.6wind.com (host.76.145.23.62.rev.coltfrance.com [62.23.145.76]) by dpdk.org (Postfix) with ESMTP id F24661B192 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 02B7CCF330 for ; Mon, 11 Sep 2017 17:09:58 +0200 (CEST) From: Olivier Matz To: dev@dpdk.org Date: Mon, 11 Sep 2017 17:13:31 +0200 Message-Id: <20170911151333.5727-9-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 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] [PATCH 08/10] lpm6: 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: , X-List-Received-Date: Mon, 11 Sep 2017 15:13:52 -0000 The compilation with gcc-6.3.0 and EXTRA_CFLAGS=-Og gives the following error: CC rte_lpm6.o rte_lpm6.c: In function ‘rte_lpm6_add_v1705’: rte_lpm6.c:442:11: error: ‘tbl_next’ may be used uninitialized in this function [-Werror=maybe-uninitialized] if (!tbl[tbl_index].valid) { ^ rte_lpm6.c:521:29: note: ‘tbl_next’ was declared here struct rte_lpm6_tbl_entry *tbl_next; ^~~~~~~~ This is a false positive from gcc. Fix it by initializing tbl_next to NULL. Signed-off-by: Olivier Matz --- lib/librte_lpm/rte_lpm6.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/librte_lpm/rte_lpm6.c b/lib/librte_lpm/rte_lpm6.c index b4a7df348..f9496fe1b 100644 --- a/lib/librte_lpm/rte_lpm6.c +++ b/lib/librte_lpm/rte_lpm6.c @@ -518,7 +518,7 @@ rte_lpm6_add_v1705(struct rte_lpm6 *lpm, uint8_t *ip, uint8_t depth, uint32_t next_hop) { struct rte_lpm6_tbl_entry *tbl; - struct rte_lpm6_tbl_entry *tbl_next; + struct rte_lpm6_tbl_entry *tbl_next = NULL; int32_t rule_index; int status; uint8_t masked_ip[RTE_LPM6_IPV6_ADDR_SIZE]; -- 2.11.0