netdev - Re: [patch net-next v3 12/15] netdevsim: register port netdevices into net of device

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Date:   Thu, 3 Oct 2019 16:21:21 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Jiri Pirko <jiri@...nulli.us>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, idosch@...lanox.com,
        dsahern@...il.com, tariqt@...lanox.com, saeedm@...lanox.com,
        kuznet@....inr.ac.ru, yoshfuji@...ux-ipv6.org, shuah@...nel.org,
        mlxsw@...lanox.com
Subject: Re: [patch net-next v3 12/15] netdevsim: register port netdevices
 into net of device

On Thu,  3 Oct 2019 11:49:37 +0200, Jiri Pirko wrote:
> From: Jiri Pirko <jiri@...lanox.com>
> 
> Register newly created port netdevice into net namespace
> that the parent device belongs to.
> 
> Signed-off-by: Jiri Pirko <jiri@...lanox.com>

Acked-by: Jakub Kicinski <jakub.kicinski@...ronome.com>

> diff --git a/drivers/net/netdevsim/netdev.c b/drivers/net/netdevsim/netdev.c
> index 0740940f41b1..2908e0a0d6e1 100644
> --- a/drivers/net/netdevsim/netdev.c
> +++ b/drivers/net/netdevsim/netdev.c
> @@ -290,6 +290,7 @@ nsim_create(struct nsim_dev *nsim_dev, struct nsim_dev_port *nsim_dev_port)
>  	if (!dev)
>  		return ERR_PTR(-ENOMEM);
>  
> +	dev_net_set(dev, nsim_dev_net(nsim_dev));
>  	ns = netdev_priv(dev);
>  	ns->netdev = dev;
>  	ns->nsim_dev = nsim_dev;
> diff --git a/drivers/net/netdevsim/netdevsim.h b/drivers/net/netdevsim/netdevsim.h
> index 702d951fe160..198ca31cec94 100644
> --- a/drivers/net/netdevsim/netdevsim.h
> +++ b/drivers/net/netdevsim/netdevsim.h
> @@ -164,6 +164,11 @@ struct nsim_dev {
>  	struct devlink_region *dummy_region;
>  };
>  
> +static inline struct net *nsim_dev_net(struct nsim_dev *nsim_dev)
> +{
> +	return devlink_net(priv_to_devlink(nsim_dev));
> +}

Slight overkill to have a single-use helper for this? ;)

>  int nsim_dev_init(void);
>  void nsim_dev_exit(void);
>  int nsim_dev_probe(struct nsim_bus_dev *nsim_bus_dev);