netdev - Re: [PATCH net-next v4 03/10] tsnep: Do not print DMA mapping error

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Date:   Tue, 10 Jan 2023 20:47:44 +0100
From:   Gerhard Engleder <gerhard@...leder-embedded.com>
To:     Alexander H Duyck <alexander.duyck@...il.com>,
        netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, edumazet@...gle.com,
        pabeni@...hat.com
Subject: Re: [PATCH net-next v4 03/10] tsnep: Do not print DMA mapping error



On 10.01.23 16:53, Alexander H Duyck wrote:
> On Mon, 2023-01-09 at 20:15 +0100, Gerhard Engleder wrote:
>> Printing in data path shall be avoided. DMA mapping error is already
>> counted in stats so printing is not necessary.
>>
>> Signed-off-by: Gerhard Engleder <gerhard@...leder-embedded.com>
>> ---
>>   drivers/net/ethernet/engleder/tsnep_main.c | 2 --
>>   1 file changed, 2 deletions(-)
>>
>> diff --git a/drivers/net/ethernet/engleder/tsnep_main.c b/drivers/net/ethernet/engleder/tsnep_main.c
>> index d148ba422b8c..8c6d6e210494 100644
>> --- a/drivers/net/ethernet/engleder/tsnep_main.c
>> +++ b/drivers/net/ethernet/engleder/tsnep_main.c
>> @@ -469,8 +469,6 @@ static netdev_tx_t tsnep_xmit_frame_ring(struct sk_buff *skb,
>>   
>>   		spin_unlock_bh(&tx->lock);
>>   
>> -		netdev_err(tx->adapter->netdev, "TX DMA map failed\n");
>> -
>>   		return NETDEV_TX_OK;
>>   	}
>>   	length = retval;
> 
> It might be nice to add a stat to indicate that this is specifically a
> mapping error rather than just incrementing dropped but that could also
> be done in a future patch.

I took a note for future work.

Gerhard