From 729bd53ed3a4df05c1593a5aba2d60dfd4390b43 Mon Sep 17 00:00:00 2001 From: Alaa Hleihel Date: Sun, 10 May 2020 15:04:36 -0400 Subject: [PATCH 112/312] [netdrv] net/mlx5e: Remove redundant pointer check Message-id: <20200510150452.10307-72-ahleihel@redhat.com> Patchwork-id: 306695 Patchwork-instance: patchwork O-Subject: [RHEL8.3 BZ 1789380 v2 71/87] net/mlx5e: Remove redundant pointer check Bugzilla: 1789380 RH-Acked-by: Kamal Heib RH-Acked-by: Jarod Wilson RH-Acked-by: Tony Camuso RH-Acked-by: Jonathan Toppins Bugzilla: http://bugzilla.redhat.com/1789380 Upstream: v5.5-rc1 commit 90ac245814abc30d2423474310654d31e3908b2f Author: Eli Cohen Date: Thu Oct 31 09:12:18 2019 +0200 net/mlx5e: Remove redundant pointer check When code reaches the "out" label, n is guaranteed to be valid so we can unconditionally call neigh_release. Also change the label to release_neigh to better reflect the fact that we unconditionally free the neighbour and also match other labels convention. Signed-off-by: Eli Cohen Reviewed-by: Roi Dayan Signed-off-by: Saeed Mahameed Signed-off-by: Alaa Hleihel Signed-off-by: Frantisek Hrbata --- .../net/ethernet/mellanox/mlx5/core/en/tc_tun.c | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c index 8a9791473f57..edcbcc3d3223 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c @@ -236,13 +236,13 @@ int mlx5e_tc_tun_create_header_ipv4(struct mlx5e_priv *priv, mlx5_core_warn(priv->mdev, "encap size %d too big, max supported is %d\n", ipv4_encap_size, max_encap_size); err = -EOPNOTSUPP; - goto out; + goto release_neigh; } encap_header = kzalloc(ipv4_encap_size, GFP_KERNEL); if (!encap_header) { err = -ENOMEM; - goto out; + goto release_neigh; } /* used by mlx5e_detach_encap to lookup a neigh hash table @@ -294,7 +294,7 @@ int mlx5e_tc_tun_create_header_ipv4(struct mlx5e_priv *priv, /* the encap entry will be made valid on neigh update event * and not used before that. */ - goto out; + goto release_neigh; } e->pkt_reformat = mlx5_packet_reformat_alloc(priv->mdev, e->reformat_type, @@ -314,9 +314,8 @@ int mlx5e_tc_tun_create_header_ipv4(struct mlx5e_priv *priv, mlx5e_rep_encap_entry_detach(netdev_priv(e->out_dev), e); free_encap: kfree(encap_header); -out: - if (n) - neigh_release(n); +release_neigh: + neigh_release(n); return err; } @@ -355,13 +354,13 @@ int mlx5e_tc_tun_create_header_ipv6(struct mlx5e_priv *priv, mlx5_core_warn(priv->mdev, "encap size %d too big, max supported is %d\n", ipv6_encap_size, max_encap_size); err = -EOPNOTSUPP; - goto out; + goto release_neigh; } encap_header = kzalloc(ipv6_encap_size, GFP_KERNEL); if (!encap_header) { err = -ENOMEM; - goto out; + goto release_neigh; } /* used by mlx5e_detach_encap to lookup a neigh hash table @@ -412,7 +411,7 @@ int mlx5e_tc_tun_create_header_ipv6(struct mlx5e_priv *priv, /* the encap entry will be made valid on neigh update event * and not used before that. */ - goto out; + goto release_neigh; } e->pkt_reformat = mlx5_packet_reformat_alloc(priv->mdev, @@ -433,9 +432,8 @@ int mlx5e_tc_tun_create_header_ipv6(struct mlx5e_priv *priv, mlx5e_rep_encap_entry_detach(netdev_priv(e->out_dev), e); free_encap: kfree(encap_header); -out: - if (n) - neigh_release(n); +release_neigh: + neigh_release(n); return err; } -- 2.13.6