linux-kernel - Re: [PATCH net-next 2/6] net: dsa: simplify netdevice events handling

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Date:   Fri, 3 Feb 2017 18:43:35 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
        netdev@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, kernel@...oirfairelinux.com,
        "David S. Miller" <davem@...emloft.net>,
        Andrew Lunn <andrew@...n.ch>, cphealy@...il.com
Subject: Re: [PATCH net-next 2/6] net: dsa: simplify netdevice events handling



On 02/03/2017 10:20 AM, Vivien Didelot wrote:
> Simplify the code handling the slave netdevice notifier call by
> providing a dsa_slave_changeupper helper for NETDEV_CHANGEUPPER, and so
> on (only this event is supported at the moment.)
> 
> Return NOTIFY_DONE when we did not care about an event, and NOTIFY_OK
> when we were concerned but no error occurred, as the API suggests.
> 
> Signed-off-by: Vivien Didelot <vivien.didelot@...oirfairelinux.com>
> ---

>  static int dsa_slave_netdevice_event(struct notifier_block *nb,
> @@ -1529,8 +1514,11 @@ static int dsa_slave_netdevice_event(struct notifier_block *nb,
>  {
>  	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
>  
> -	if (dsa_slave_dev_check(dev))
> -		return dsa_slave_port_event(dev, event, ptr);
> +	if (dev->netdev_ops != &dsa_slave_netdev_ops)
> +		return NOTIFY_DONE;

Why not keep the dsa_slave_dev_check() here?


-- 
Florian