Re: [net-next PATCH v4 3/7] net: sock: Change tx_queue_mapping in sock_common to unsigned short

[Nambiar, Amritha]

On 6/26/2018 3:58 AM, Willem de Bruijn wrote:
> On Mon, Jun 25, 2018 at 7:06 PM Amritha Nambiar
> <amritha.namb...@intel.com> wrote:
>>
>> Change 'skc_tx_queue_mapping' field in sock_common structure from
>> 'int' to 'unsigned short' type with 0 indicating unset and
>> a positive queue value being set. This way it is consistent with
>> the queue_mapping field in the sk_buff. This will also accommodate
>> adding a new 'unsigned short' field in sock_common in the next
>> patch for rx_queue_mapping.
>>
>> Signed-off-by: Amritha Nambiar <amritha.namb...@intel.com>
>> ---
> 
>>  static inline void sk_tx_queue_set(struct sock *sk, int tx_queue)
>>  {
>> -       sk->sk_tx_queue_mapping = tx_queue;
>> +       /* sk_tx_queue_mapping accept only upto a 16-bit value */
>> +       WARN_ON((unsigned short)tx_queue > USHRT_MAX);
>> +       sk->sk_tx_queue_mapping = tx_queue + 1;
>>  }
> 
> WARN_ON_ONCE to avoid flooding the kernel buffer.
> 
Will fix.