[dpdk-dev] [PATCH 07/10] metrics: fix compilation with -Og
Olivier Matz
olivier.matz at 6wind.com
Mon Sep 11 17:13:30 CEST 2017
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 <olivier.matz at 6wind.com>
---
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;
--
2.11.0
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