On Sat, 1 Jun 2019 at 19:03, Andrew Lunn <and...@lunn.ch> wrote:
>
> On Sat, Jun 01, 2019 at 01:37:34PM +0300, Vladimir Oltean wrote:
> > The code in sja1105_adjust_port_config relies on the fact that an
> > invalid link speed is detected by sja1105_get_speed_cfg and returned as
> > -EINVAL. However storing this into an enum that only has positive
> > members will cast it into an unsigned value, and it will miss the
> > negative check.
> >
> > So make the -EINVAL value part of the enum, so that it is stored as a
> > signed number and passes the negative check.
> >
> > Fixes: 8aa9ebccae87 ("net: dsa: Introduce driver for NXP SJA1105 5-port L2
> > switch")
> > Signed-off-by: Vladimir Oltean <olte...@gmail.com>
>
> Hi Vladimir
>
> It seems like just using a switch statement would be simpler, and more
> likely to be correct. And it would avoid adding SJA1105_SPEED_INVALID
> = -EINVAL which feels hackish.
>
> Andrew
Hi Andrew,
You mean I should completely remove the sja1105_get_speed_cfg function?
I suppose I can do that, I'm only using it in one place.
Thanks,
-Vladimir
