Re: [PATCH net v2] net: dsa: motorcomm: Isolate all ports during chip setup

[Andrew Lunn]

On Sun, Oct 25, 2026 at 10:48:31PM +0800, David Yang wrote:
> The chip setup only blocked unknown unicast and unknown multicast
> frames, known multicast and broadcast were left open (though the former
> cannot appear while the FDB is still empty). Before port_setup() runs,
> broadcast frames received on a port flood out of the other ports.
> 
> Close the window by fully isolating every port right after the hardware
> reset.
> 
> Fixes: 186623f4aa72 ("net: dsa: yt921x: Add support for Motorcomm YT921x")
> Signed-off-by: David Yang <mmyangfl@xxxxxxxxx>

Reviewed-by: Andrew Lunn <andrew@xxxxxxx>

    Andrew