From: Leon Romanovsky <leon@kernel.org>
To: Doug Ledford <dledford@redhat.com>, Jason Gunthorpe <jgg@nvidia.com>
Cc: pierre-louis.bossart@linux.intel.com,
alsa-devel@alsa-project.org, kiran.patil@intel.com,
"Michael S. Tsirkin" <mst@redhat.com>,
linux-rdma@vger.kernel.org, netdev@vger.kernel.org,
Jason Wang <jasowang@redhat.com>,
ranjani.sridharan@linux.intel.com,
virtualization@lists.linux-foundation.org,
fred.oh@linux.intel.com, tiwai@suse.de, broonie@kernel.org,
Parav Pandit <parav@nvidia.com>, Roi Dayan <roid@nvidia.com>,
shiraz.saleem@intel.com, Jakub Kicinski <kuba@kernel.org>,
dan.j.williams@intel.com, Leon Romanovsky <leonro@nvidia.com>,
Saeed Mahameed <saeedm@nvidia.com>,
linux-kernel@vger.kernel.org,
"David S . Miller" <davem@davemloft.net>
Subject: [PATCH mlx5-next 01/11] net/mlx5: Don't skip vport check
Date: Mon, 26 Oct 2020 13:18:39 +0200 [thread overview]
Message-ID: <20201026111849.1035786-2-leon@kernel.org> (raw)
In-Reply-To: <20201026111849.1035786-1-leon@kernel.org>
From: Leon Romanovsky <leonro@nvidia.com>
Users of mlx5_eswitch_get_vport() are required to check return value
prior to passing mlx5_vport further. Fix all the places to do not skip
that check.
Fixes: c7eddc6092b4 ("net/mlx5: E-switch, Move devlink eswitch ports closer to eswitch")
Fixes: 5d9986a3947a ("net/mlx5: E-Switch, Fix the check of legal vport")
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c | 2 +-
drivers/net/ethernet/mellanox/mlx5/core/eswitch.c | 7 +++++++
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c | 6 ++++++
3 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c
index ffff11baa3d0..88688b84513b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c
@@ -120,5 +120,5 @@ struct devlink_port *mlx5_esw_offloads_devlink_port(struct mlx5_eswitch *esw, u1
struct mlx5_vport *vport;
vport = mlx5_eswitch_get_vport(esw, vport_num);
- return vport->dl_port;
+ return IS_ERR(vport) ? ERR_CAST(vport) : vport->dl_port;
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index 6e6a9a563992..2e14bf238588 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -1142,6 +1142,9 @@ int mlx5_esw_modify_vport_rate(struct mlx5_eswitch *esw, u16 vport_num,
struct mlx5_vport *vport;
vport = mlx5_eswitch_get_vport(esw, vport_num);
+ if (IS_ERR(vport))
+ return PTR_ERR(vport);
+
MLX5_SET(scheduling_context, ctx, max_average_bw, rate_mbps);
return mlx5_modify_scheduling_element_cmd(esw->dev,
@@ -1276,6 +1279,8 @@ static int esw_enable_vport(struct mlx5_eswitch *esw, u16 vport_num,
int ret;
vport = mlx5_eswitch_get_vport(esw, vport_num);
+ if (IS_ERR(vport))
+ return PTR_ERR(vport);
mutex_lock(&esw->state_lock);
WARN_ON(vport->enabled);
@@ -1311,6 +1316,8 @@ static void esw_disable_vport(struct mlx5_eswitch *esw, u16 vport_num)
struct mlx5_vport *vport;
vport = mlx5_eswitch_get_vport(esw, vport_num);
+ if (IS_ERR(vport))
+ return;
mutex_lock(&esw->state_lock);
if (!vport->enabled)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index c9c2962ad49f..429dc613530b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -2159,6 +2159,9 @@ static int esw_create_uplink_offloads_acl_tables(struct mlx5_eswitch *esw)
struct mlx5_vport *vport;
vport = mlx5_eswitch_get_vport(esw, MLX5_VPORT_UPLINK);
+ if (IS_ERR(vport))
+ return PTR_ERR(vport);
+
return esw_vport_create_offloads_acl_tables(esw, vport);
}
@@ -2167,6 +2170,9 @@ static void esw_destroy_uplink_offloads_acl_tables(struct mlx5_eswitch *esw)
struct mlx5_vport *vport;
vport = mlx5_eswitch_get_vport(esw, MLX5_VPORT_UPLINK);
+ if (IS_ERR(vport))
+ return;
+
esw_vport_destroy_offloads_acl_tables(esw, vport);
}
--
2.26.2
next prev parent reply other threads:[~2020-10-26 11:20 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-26 11:18 [PATCH mlx5-next 00/11] Convert mlx5 to use auxiliary bus Leon Romanovsky
2020-10-26 11:18 ` Leon Romanovsky [this message]
2020-10-26 11:18 ` [PATCH mlx5-next 02/11] net/mlx5: Properly convey driver version to firmware Leon Romanovsky
2020-10-26 11:18 ` [PATCH mlx5-next 03/11] net/mlx5_core: Clean driver version and name Leon Romanovsky
2020-10-26 11:18 ` [PATCH mlx5-next 04/11] vdpa/mlx5: Make hardware definitions visible to all mlx5 devices Leon Romanovsky
2020-10-26 11:18 ` [PATCH mlx5-next 05/11] net/mlx5: Register mlx5 devices to auxiliary virtual bus Leon Romanovsky
2020-10-26 11:18 ` [PATCH mlx5-next 06/11] vdpa/mlx5: Connect mlx5_vdpa to auxiliary bus Leon Romanovsky
2020-10-26 11:18 ` [PATCH mlx5-next 07/11] net/mlx5e: Connect ethernet part " Leon Romanovsky
2020-10-26 11:18 ` [PATCH mlx5-next 08/11] RDMA/mlx5: Convert mlx5_ib to use " Leon Romanovsky
2020-10-26 11:18 ` [PATCH mlx5-next 09/11] net/mlx5: Delete custom device management logic Leon Romanovsky
2020-10-26 11:18 ` [PATCH mlx5-next 10/11] net/mlx5: Simplify eswitch mode check Leon Romanovsky
2020-10-26 11:18 ` [PATCH mlx5-next 11/11] RDMA/mlx5: Remove IB representors dead code Leon Romanovsky
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