linux-kernel - Re: [PATCH net] net: dsa: microchip: set the correct number of ports

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Message-ID: <20200702135016.GL730739@lunn.ch>
Date:   Thu, 2 Jul 2020 15:50:16 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Codrin Ciubotariu <codrin.ciubotariu@...rochip.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        woojung.huh@...rochip.com, UNGLinuxDriver@...rochip.com,
        vivien.didelot@...il.com, f.fainelli@...il.com,
        davem@...emloft.net, kuba@...nel.org
Subject: Re: [PATCH net] net: dsa: microchip: set the correct number of ports

On Thu, Jul 02, 2020 at 12:44:50PM +0300, Codrin Ciubotariu wrote:
> The number of ports is incorrectly set to the maximum available for a DSA
> switch. Even if the extra ports are not used, this causes some functions
> to be called later, like port_disable() and port_stp_state_set(). If the
> driver doesn't check the port index, it will end up modifying unknown
> registers.
> 
> Fixes: b987e98e50ab ("dsa: add DSA switch driver for Microchip KSZ9477")
> Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@...rochip.com>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

Thanks for the minimum patch.

If you wait about a week, net will get merged into net-next. You can
then submit a refactoring patch based on your previous version.

    Andrew