Re: [PATCH net-next v3 08/11] net/mlx5: devlink health: use retained error fmsg API

[Przemek Kitszel <przemyslaw.kitszel@intel.com>]

On 10/24/23 11:50, Dan Carpenter wrote:
> On Wed, Oct 18, 2023 at 10:26:44PM +0200, Przemek Kitszel wrote:
>>   	if (rq->icosq) {
>>   		struct mlx5e_icosq *icosq = rq->icosq;
>>   		u8 icosq_hw_state;
>>   
>> -		err = mlx5_core_query_sq_state(rq->mdev, icosq->sqn, &icosq_hw_state);
>> -		if (err)
>> -			return err;
>> -
>> -		err = mlx5e_reporter_icosq_diagnose(icosq, icosq_hw_state, fmsg);
>> -		if (err)
>> -			return err;
>> +		mlx5_core_query_sq_state(rq->mdev, icosq->sqn, &icosq_hw_state);
> 
> When we remove the error checking then Smatch correctly complains that
> icosq_hw_state is used uninitialized.
> 
>      drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c:268 mlx5e_rx_reporter_build_diagnose_output_rq_common()
>      error: uninitialized symbol 'icosq_hw_state'.
> 
>> +		mlx5e_reporter_icosq_diagnose(icosq, icosq_hw_state, fmsg);
>>   	}
>>   
>>   	return 0;
>>   }
> 
> See also:
>      drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c:229 mlx5e_tx_reporter_build_diagnose_output_sq_common()
>      error: uninitialized symbol 'state'.
> 
> regards,
> dan carpenter

thank you for the report, I will post a fix soon