Re: [PATCH net v2] usbnet: cap max_mtu for drivers without bind callback

[Jakub Kicinski]

On Mon, 27 Jul 2026 09:23:04 +0200 Laurent Vivier wrote:
> -		if ((dev->driver_info->flags & FLAG_NOMAXMTU) == 0 &&
> -		    net->max_mtu > (dev->hard_mtu - net->hard_header_len))
> +		if (dev->driver_info->flags & FLAG_NOMAXMTU)
> +			net->max_mtu = ETH_MAX_MTU;
> +		else
>  			net->max_mtu = dev->hard_mtu - net->hard_header_len;

Sashikos point out that this will causes issues for existing drivers in
both directions. Some drivers explicitly set max_mtu. So we need to move
the

	net->max_mtu = ETH_MAX_MTU;

line before the call to ->bind ?
-- 
pw-bot: cr