[dpdk-dev] [PATCH 08/10] lpm6: fix compilation with -Og
Olivier Matz
olivier.matz at 6wind.com
Mon Sep 11 17:13:31 CEST 2017
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 <olivier.matz at 6wind.com>
---
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
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