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Subject: Re: [PATCH mlx5-next v1 02/11] net/mlx5: Properly convey driver
 version to firmware
To:     Leon Romanovsky <leon@kernel.org>,
        Doug Ledford <dledford@redhat.com>,
        Jason Gunthorpe <jgg@nvidia.com>,
        gregkh <gregkh@linuxfoundation.org>
CC:     Leon Romanovsky <leonro@nvidia.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Jason Wang <jasowang@redhat.com>, <linux-rdma@vger.kernel.org>,
        "Michael S. Tsirkin" <mst@redhat.com>, <netdev@vger.kernel.org>,
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References: <20201101201542.2027568-1-leon@kernel.org>
 <20201101201542.2027568-3-leon@kernel.org>
From:   Roi Dayan <roid@nvidia.com>
Message-ID: <67ff0c7b-d111-9e8f-76d5-858ecf4ba692@nvidia.com>
Date:   Mon, 2 Nov 2020 16:47:37 +0200
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On 2020-11-01 10:15 PM, Leon Romanovsky wrote:
> From: Leon Romanovsky <leonro@nvidia.com>
> 
> mlx5 firmware expects driver version in specific format X.X.X, so
> make it always correct and based on real kernel version aligned with
> the driver.
> 
> Fixes: 012e50e109fd ("net/mlx5: Set driver version into firmware")
> Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
> ---
>   drivers/net/ethernet/mellanox/mlx5/core/main.c | 6 +++++-
>   1 file changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
> index 8ff207aa1479..71e210f22f69 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
> @@ -50,6 +50,7 @@
>   #ifdef CONFIG_RFS_ACCEL
>   #include <linux/cpu_rmap.h>
>   #endif
> +#include <linux/version.h>
>   #include <net/devlink.h>
>   #include "mlx5_core.h"
>   #include "lib/eq.h"
> @@ -233,7 +234,10 @@ static void mlx5_set_driver_version(struct mlx5_core_dev *dev)
>   	strncat(string, ",", remaining_size);
> 
>   	remaining_size = max_t(int, 0, driver_ver_sz - strlen(string));
> -	strncat(string, DRIVER_VERSION, remaining_size);
> +
> +	snprintf(string + strlen(string), remaining_size, "%u.%u.%u",
> +		 (u8)(LINUX_VERSION_CODE >> 16), (u8)(LINUX_VERSION_CODE >> 8),
> +		 (u16)(LINUX_VERSION_CODE & 0xff));
> 
>   	/*Send the command*/
>   	MLX5_SET(set_driver_version_in, in, opcode,
> --
> 2.28.0
> 

Reviewed-by: Roi Dayan <roid@nvidia.com>