From 1f148d8eaf3baaf123fd8bf692947fe9437a5ab6 Mon Sep 17 00:00:00 2001 From: Olivier Matz Date: Mon, 11 Sep 2017 17:13:31 +0200 Subject: [PATCH] lpm6: fix compilation with -Og MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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. Fixes: 5c510e13a9cb ("lpm: add IPv6 support") Cc: stable@dpdk.org Signed-off-by: Olivier Matz Acked-by: Bruce Richardson --- 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 5ca322c69e..68171c4eb3 100644 --- a/lib/librte_lpm/rte_lpm6.c +++ b/lib/librte_lpm/rte_lpm6.c @@ -521,7 +521,7 @@ 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]; -- 2.20.1