[dpdk-dev] [PATCH 3/5] net/mlx4: fix possible uninitialized variable
Thomas Monjalon
thomas at monjalon.net
Fri Nov 16 17:58:52 CET 2018
When compiling with gcc -O1, this error appears:
drivers/net/mlx4/mlx4_ethdev.c: In function ‘mlx4_rxmode_toggle’:
rte_log.h:321:3: error:
‘mode’ may be used uninitialized in this function
The function mlx4_rxmode_toggle is never called with a value which
is not in the switch block, but GCC complains about it with -O1.
So the default case is "fixed" by setting string "undefined".
Fixes: eacaac7bae36 ("net/mlx4: restore promisc and allmulti support")
Cc: stable at dpdk.org
Signed-off-by: Thomas Monjalon <thomas at monjalon.net>
---
drivers/net/mlx4/mlx4_ethdev.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/mlx4/mlx4_ethdev.c b/drivers/net/mlx4/mlx4_ethdev.c
index 30deb3ef0..195a1b6df 100644
--- a/drivers/net/mlx4/mlx4_ethdev.c
+++ b/drivers/net/mlx4/mlx4_ethdev.c
@@ -360,6 +360,8 @@ mlx4_rxmode_toggle(struct rte_eth_dev *dev, enum rxmode_toggle toggle)
mode = "all multicast";
dev->data->all_multicast = toggle & 1;
break;
+ default:
+ mode = "undefined";
}
if (!mlx4_flow_sync(priv, &error))
return;
--
2.19.0
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