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author | Nathan Chancellor <nathan@kernel.org> | 2022-08-25 21:06:07 +0300 |
---|---|---|
committer | Jakub Kicinski <kuba@kernel.org> | 2022-08-31 09:16:47 +0300 |
commit | 92f97c00f0ca538fe820c0b18b6f957a69410689 (patch) | |
tree | 062dd86e4874347da027213136d1ad0152c1095a /drivers/net | |
parent | 4f99de7b181f926a3f8d71fec74fd80e2ee8d9c2 (diff) | |
download | linux-92f97c00f0ca538fe820c0b18b6f957a69410689.tar.xz |
net/mlx5e: Do not use err uninitialized in mlx5e_rep_add_meta_tunnel_rule()
Clang warns:
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c:481:6: error: variable 'err' is used uninitialized whenever 'if' condition is false [-Werror,-Wsometimes-uninitialized]
if (IS_ERR(flow_rule)) {
^~~~~~~~~~~~~~~~~
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c:489:9: note: uninitialized use occurs here
return err;
^~~
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c:481:2: note: remove the 'if' if its condition is always true
if (IS_ERR(flow_rule)) {
^~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c:474:9: note: initialize the variable 'err' to silence this warning
int err;
^
= 0
1 error generated.
There is little reason to have the 'goto + error variable' construct in
this function. Get rid of it and just return the PTR_ERR value in the if
statement and 0 at the end.
Fixes: 430e2d5e2a98 ("net/mlx5: E-Switch, Move send to vport meta rule creation")
Link: https://github.com/ClangBuiltLinux/linux/issues/1695
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20220825180607.2707947-1-nathan@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_rep.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c index 914bddbfc1d7..e09bca78df75 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c @@ -471,22 +471,18 @@ mlx5e_rep_add_meta_tunnel_rule(struct mlx5e_priv *priv) struct mlx5_eswitch_rep *rep = rpriv->rep; struct mlx5_flow_handle *flow_rule; struct mlx5_flow_group *g; - int err; g = esw->fdb_table.offloads.send_to_vport_meta_grp; if (!g) return 0; flow_rule = mlx5_eswitch_add_send_to_vport_meta_rule(esw, rep->vport); - if (IS_ERR(flow_rule)) { - err = PTR_ERR(flow_rule); - goto out; - } + if (IS_ERR(flow_rule)) + return PTR_ERR(flow_rule); rpriv->send_to_vport_meta_rule = flow_rule; -out: - return err; + return 0; } static void |