diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2016-09-30 18:17:09 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-10-03 01:55:18 -0400 |
| commit | d0debb76df18f05ecc65579d37203703ffdec44d (patch) | |
| tree | 1038925afe772b9d61ce81fd3aaeccf71c265d7f | |
| parent | 7c70c4f8b2bf5ed777120f3d70efe35e64930c10 (diff) | |
| download | softirq-debug-d0debb76df18f05ecc65579d37203703ffdec44d.tar.gz | |
net/mlx5e: shut up maybe-uninitialized warning
Build-testing this driver with -Wmaybe-uninitialized gives a new false-positive
warning that I can't really explain:
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c: In function 'mlx5e_configure_flower':
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c:509:3: error: 'old_attr' may be used uninitialized in this function [-Werror=maybe-uninitialized]
It's obvious from the code that 'old_attr' is initialized whenever 'old'
is non-NULL here. The warning appears with all versions I tested from gcc-4.7
through gcc-6.1, and I could not come up with a way to rewrite the function
in a more readable way that avoids the warning, so I'm adding another
initialization to shut it up.
Fixes: 8b32580df1cb ("net/mlx5e: Add TC vlan action for SRIOV offloads")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index a350b7171e3d16..ce8c54d18906be 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -451,7 +451,7 @@ int mlx5e_configure_flower(struct mlx5e_priv *priv, __be16 protocol, struct mlx5e_tc_flow *flow; struct mlx5_flow_spec *spec; struct mlx5_flow_rule *old = NULL; - struct mlx5_esw_flow_attr *old_attr; + struct mlx5_esw_flow_attr *old_attr = NULL; struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; if (esw && esw->mode == SRIOV_OFFLOADS) |