Subject: Re: [PATCH net-next v7 02/11] rtnetlink: Pack newlink() params into struct

From: Jakub Kicinski <[email-masked]>
Date: Tue, 7 Jan 2025 12:38:05 -0800

On Sat,  4 Jan 2025 20:57:23 +0800 Xiao Liang wrote:
> -static int amt_newlink(struct net *net, struct net_device *dev,
> -		       struct nlattr *tb[], struct nlattr *data[],
> -		       struct netlink_ext_ack *extack)
> +static int amt_newlink(struct rtnl_newlink_params *params)
>  {
> -	struct amt_dev *amt = netdev_priv(dev);
> +	struct netlink_ext_ack *extack = params->extack;
> +	struct net_device *dev = params->dev;
> +	struct nlattr **data = params->data;
> +	struct nlattr **tb = params->tb;
> +	struct net *net = params->net;
> +	struct amt_dev *amt;

IMHO you packed a little too much into the struct.
Could you take the dev and the extack back out?