On Wed, 1 Sep 2021 10:21:55 -0700 Florian Fainelli wrote: > On 9/1/2021 2:21 AM, Rafał Miłecki wrote: > > From: Rafał Miłecki <rafal@xxxxxxxxxx> > > > > Setting DSA_MAX_PORTS caused DSA to call b53 callbacks (e.g. > > b53_disable_port() during dsa_register_switch()) for invalid > > (non-existent) ports. That made b53 modify unrelated registers and is > > one of reasons for a broken BCM5301x support. > > > > This problem exists for years but DSA_MAX_PORTS usage has changed few > > times so it's hard to specify a single commit this change fixes. > > You should still try to identify the relevant tags that this is fixing > such that this gets back ported to the appropriate trees. We could use > Fixes: 7e99e3470172 ("net: dsa: remove dsa_switch_alloc helper"), to > minimize the amount of work doing the back port. To be clear are you okay with the fixes tag you provided or should we wait for Rafał to double check?