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From: Saeed Mahameed <saeed@kernel.org>
To: "David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>
Cc: netdev@vger.kernel.org, Dmytro Linkin <dlinkin@nvidia.com>,
	Roi Dayan <roid@nvidia.com>, Saeed Mahameed <saeedm@nvidia.com>
Subject: [net 08/13] net/mlx5: E-Switch, Check group pointer before reading bw_share value
Date: Tue, 30 Nov 2021 22:37:04 -0800	[thread overview]
Message-ID: <20211201063709.229103-9-saeed@kernel.org> (raw)
In-Reply-To: <20211201063709.229103-1-saeed@kernel.org>

From: Dmytro Linkin <dlinkin@nvidia.com>

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>
---
 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 4501e3d737f8..d377ddc70fc7 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;
 }
-- 
2.31.1


  parent reply	other threads:[~2021-12-01  6:37 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-01  6:36 [pull request][net 00/13] mlx5 fixes 2021-11-30 Saeed Mahameed
2021-12-01  6:36 ` [net 01/13] net/mlx5e: IPsec: Fix Software parser inner l3 type setting in case of encapsulation Saeed Mahameed
2021-12-01 15:00   ` patchwork-bot+netdevbpf
2021-12-01  6:36 ` [net 02/13] net/mlx5e: Fix missing IPsec statistics on uplink representor Saeed Mahameed
2021-12-01  6:36 ` [net 03/13] net/mlx5e: Sync TIR params updates against concurrent create/modify Saeed Mahameed
2021-12-01  6:37 ` [net 04/13] net/mlx5: Move MODIFY_RQT command to ignore list in internal error state Saeed Mahameed
2021-12-01  6:37 ` [net 05/13] net/mlx5: Lag, Fix recreation of VF LAG Saeed Mahameed
2021-12-01  6:37 ` [net 06/13] net/mlx5: E-switch, Respect BW share of the new group Saeed Mahameed
2021-12-01  6:37 ` [net 07/13] net/mlx5: E-Switch, fix single FDB creation on BlueField Saeed Mahameed
2021-12-01  6:37 ` Saeed Mahameed [this message]
2021-12-01  6:37 ` [net 09/13] net/mlx5: E-Switch, Use indirect table only if all destinations support it Saeed Mahameed
2021-12-01  6:37 ` [net 10/13] net/mlx5: Fix use after free in mlx5_health_wait_pci_up Saeed Mahameed
2021-12-01  6:37 ` [net 11/13] net/mlx5: Fix too early queueing of log timestamp work Saeed Mahameed
2021-12-01  6:37 ` [net 12/13] net/mlx5: Fix access to a non-supported register Saeed Mahameed
2021-12-01  6:37 ` [net 13/13] net/mlx5e: SHAMPO, Fix constant expression result Saeed Mahameed

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