| From e54e264c44896db8e1d8c3e772d479d38955b10d Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Wed, 17 Nov 2021 11:47:21 +0200 |
| Subject: net/mlx5: E-Switch, Check group pointer before reading bw_share value |
| |
| From: Dmytro Linkin <dlinkin@nvidia.com> |
| |
| [ Upstream commit 5c4e8ae7aa4875041102406801ee434e6c581aef ] |
| |
| If log_esw_max_sched_depth is not supported group pointer of the vport |
| is NULL. Hence, check the pointer before reading bw_share value. |
| |
| Fixes: 0fe132eac38c ("net/mlx5: E-switch, Allow to add vports to rate groups") |
| Signed-off-by: Dmytro Linkin <dlinkin@nvidia.com> |
| Reviewed-by: Roi Dayan <roid@nvidia.com> |
| Signed-off-by: Saeed Mahameed <saeedm@nvidia.com> |
| Signed-off-by: Sasha Levin <sashal@kernel.org> |
| --- |
| drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c |
| index 4501e3d737f80..d377ddc70fc70 100644 |
| --- a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c |
| +++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c |
| @@ -130,7 +130,7 @@ static u32 esw_qos_calculate_min_rate_divider(struct mlx5_eswitch *esw, |
| /* If vports min rate divider is 0 but their group has bw_share configured, then |
| * need to set bw_share for vports to minimal value. |
| */ |
| - if (!group_level && !max_guarantee && group->bw_share) |
| + if (!group_level && !max_guarantee && group && group->bw_share) |
| return 1; |
| return 0; |
| } |
| -- |
| 2.33.0 |
| |
