linux-kernel - Re: [PATCH net-next] net: dsa: initialize the routing table

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Date:	Thu, 7 Jul 2016 15:24:59 +0200
From:	Andrew Lunn <andrew@...n.ch>
To:	Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel@...oirfairelinux.com,
	"David S. Miller" <davem@...emloft.net>,
	Florian Fainelli <f.fainelli@...il.com>
Subject: Re: [PATCH net-next] net: dsa: initialize the routing table

On Wed, Jul 06, 2016 at 08:03:54PM -0400, Vivien Didelot wrote:
> The routing table of every switch in a tree is currently initialized to
> all zeros. This is an issue since 0 is a valid port number.
> 
> Add a DSA_RTABLE_NONE=-1 constant to initialize the signed values of the
> routing table pointing to other switches.
> 
> This fixes the device mapping of the mv88e6xxx driver where the port
> pointing to the switch itself and to non-existent switches was wrongly
> configured to be 0. It is now set to the expected 0xf value.
> 
> Signed-off-by: Vivien Didelot <vivien.didelot@...oirfairelinux.com>

Fixes: 4a7704ffa867 ("net: dsa: Remove dynamic allocate of routing table")

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

    Andrew