[PATCH] net/af_packet: fix statistics

[Stephen Hemminger]

On Wed, 1 May 2024 17:25:59 +0100
Ferruh Yigit <ferruh.yigit at amd.com> wrote:

> On 4/30/2024 4:39 PM, Stephen Hemminger wrote:
> > The statistics in af_packet driver do not follow the standard
> > practice of other drivers:
> > 
> >  - Statistics should be maintained as 64 bit even on 32 bit.
> >   
> 
> ack
> 
> >  - Remove the tx_error counter since it was not correct.
> >    When transmit ring is full it is not an error and
> >    the driver correctly returns only the number sent.
> >   
> 
> nack
> Transmit full is not only return case here.
> There are actual errors continue to process relying this error calculation.
> Also there are error cases like interface down.
> Those error cases should be handled individually if we remove this.
> I suggest split this change to separate patch.

It is possible to get errors, but the code wasn't looking for those.
See packet(7) man page.