netdev - [net-next 02/15] net/mlx5: Remove impossible checks of interface state

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 11 Mar 2021 14:37:10 -0800
From:   Saeed Mahameed <saeed@...nel.org>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     netdev@...r.kernel.org, Leon Romanovsky <leonro@...dia.com>,
        Moshe Shemesh <moshe@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>
Subject: [net-next 02/15] net/mlx5: Remove impossible checks of interface state

From: Leon Romanovsky <leonro@...dia.com>

The interface state is constant at this stage and checked
before calling to the register/unregister reserved GIDs.

There is no need to double check it.

Reviewed-by: Moshe Shemesh <moshe@...dia.com>
Signed-off-by: Leon Romanovsky <leonro@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/lib/gid.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/gid.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/gid.c
index a68738c8f4bc..97324d9d4f2a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/gid.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/gid.c
@@ -55,10 +55,6 @@ void mlx5_cleanup_reserved_gids(struct mlx5_core_dev *dev)
 
 int mlx5_core_reserve_gids(struct mlx5_core_dev *dev, unsigned int count)
 {
-	if (test_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state)) {
-		mlx5_core_err(dev, "Cannot reserve GIDs when interfaces are up\n");
-		return -EPERM;
-	}
 	if (dev->roce.reserved_gids.start < count) {
 		mlx5_core_warn(dev, "GID table exhausted attempting to reserve %d more GIDs\n",
 			       count);
@@ -79,7 +75,6 @@ int mlx5_core_reserve_gids(struct mlx5_core_dev *dev, unsigned int count)
 
 void mlx5_core_unreserve_gids(struct mlx5_core_dev *dev, unsigned int count)
 {
-	WARN(test_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state), "Unreserving GIDs when interfaces are up");
 	WARN(count > dev->roce.reserved_gids.count, "Unreserving %u GIDs when only %u reserved",
 	     count, dev->roce.reserved_gids.count);
 
-- 
2.29.2