Subject: Re: [PATCH net-next 1/2] net: dsa: mv88e6xxx: Require ops be implemented to claim STU support

From: Marek Behún <[email-masked]>
Date: Sat, 19 Mar 2022 20:00:13 +0100

On Fri, 18 Mar 2022 21:13:20 +0100
Tobias Waldekranz <[email-masked]> wrote:

> Simply having a physical STU table in the device doesn't do us any
> good if there's no implementation of the relevant ops to access that
> table. So ensure that chips that claim STU support can also talk to
> the hardware.
> 
> This fixes an issue where chips that had a their ->info->max_sid
> set (due to their family membership), but no implementation (due to
> their chip-specific ops struct) would fail to probe.
> 
> Fixes: 49c98c1dc7d9 ("net: dsa: mv88e6xxx: Disentangle STU from VTU")
> Reported-by: Marek Behún <[email-masked]>
> Signed-off-by: Tobias Waldekranz <[email-masked]>

Tested-by: Marek Behún <[email-masked]>