[PATCH net] net: dsa: mt7530: correct ds->num_ports

[DENG Qingfang]

On Sat, Oct 16, 2021 at 07:36:14PM -0700, Florian Fainelli wrote:
> On 10/15/2021 11:24 PM, DENG Qingfang wrote:
> > Setting ds->num_ports to DSA_MAX_PORTS made DSA core allocate unnecessary
> > dsa_port's and call mt7530_port_disable for non-existent ports.
> > 
> > Set it to MT7530_NUM_PORTS to fix that, and dsa_is_user_port check in
> > port_enable/disable is no longer required.
> > 
> > Cc: stable at vger.kernel.org
> > Signed-off-by: DENG Qingfang <dqfext at gmail.com>
> 
> Do you really want to target the net tree for this change?

Yes because I consider this a bug fix.