Patch "net/mlx5e: Remove overzealous validations in netlink EEPROM query" has been added to the 5.16-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    net/mlx5e: Remove overzealous validations in netlink EEPROM query

to the 5.16-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     net-mlx5e-remove-overzealous-validations-in-netlink-.patch
and it can be found in the queue-5.16 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit c0e89bef04f28fb21ebb1e5454de2a19913f11ab
Author: Gal Pressman <gal@xxxxxxxxxx>
Date:   Wed Jan 26 16:28:23 2022 +0200

    net/mlx5e: Remove overzealous validations in netlink EEPROM query
    
    [ Upstream commit 970adfb76095fa719778d70a6b86030d2feb88dd ]
    
    Unlike the legacy EEPROM callbacks, when using the netlink EEPROM query
    (get_module_eeprom_by_page) the driver should not try to validate the
    query parameters, but just perform the read requested by the userspace.
    
    Recent discussion in the mailing list:
    https://lore.kernel.org/netdev/20220120093051.70845141@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/
    
    Signed-off-by: Gal Pressman <gal@xxxxxxxxxx>
    Reviewed-by: Ido Schimmel <idosch@xxxxxxxxxx>
    Reviewed-by: Maxim Mikityanskiy <maximmi@xxxxxxxxxx>
    Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/port.c b/drivers/net/ethernet/mellanox/mlx5/core/port.c
index 7b16a1188aab..fd79860de723 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/port.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/port.c
@@ -433,35 +433,12 @@ int mlx5_query_module_eeprom_by_page(struct mlx5_core_dev *dev,
 				     struct mlx5_module_eeprom_query_params *params,
 				     u8 *data)
 {
-	u8 module_id;
 	int err;
 
 	err = mlx5_query_module_num(dev, &params->module_number);
 	if (err)
 		return err;
 
-	err = mlx5_query_module_id(dev, params->module_number, &module_id);
-	if (err)
-		return err;
-
-	switch (module_id) {
-	case MLX5_MODULE_ID_SFP:
-		if (params->page > 0)
-			return -EINVAL;
-		break;
-	case MLX5_MODULE_ID_QSFP:
-	case MLX5_MODULE_ID_QSFP28:
-	case MLX5_MODULE_ID_QSFP_PLUS:
-		if (params->page > 3)
-			return -EINVAL;
-		break;
-	case MLX5_MODULE_ID_DSFP:
-		break;
-	default:
-		mlx5_core_err(dev, "Module ID not recognized: 0x%x\n", module_id);
-		return -EINVAL;
-	}
-
 	if (params->i2c_address != MLX5_I2C_ADDR_HIGH &&
 	    params->i2c_address != MLX5_I2C_ADDR_LOW) {
 		mlx5_core_err(dev, "I2C address not recognized: 0x%x\n", params->i2c_address);