linux-kernel - Re: [PATCH net] net: bridge: fix br_vlan_get

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Message-ID: <49b31434-53e5-72e9-ae0b-1c1200806a50@cumulusnetworks.com>
Date:   Fri, 6 Jul 2018 15:51:28 +0300
From:   Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
To:     Arnd Bergmann <arnd@...db.de>,
        "David S. Miller" <davem@...emloft.net>
Cc:     Jiri Pirko <jiri@...lanox.com>, Yotam Gigi <yotamg@...lanox.com>,
        Roopa Prabhu <roopa@...ulusnetworks.com>,
        Petr Machata <petrm@...lanox.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] net: bridge: fix br_vlan_get_{pvid,info} return
 values

On 06/07/18 15:44, Arnd Bergmann wrote:
> These two functions return the regular -EINVAL failure in the normal
> code path, but return a nonstandard '-1' error otherwise, which gets
> interpreted as -EPERM.
> 
> Let's change it to -EINVAL for the dummy functions as well.
> 
> Fixes: 4d4fd36126d6 ("net: bridge: Publish bridge accessor functions")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
>  include/linux/if_bridge.h | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h
> index 7843b98e1c6e..c20c7e197d07 100644
> --- a/include/linux/if_bridge.h
> +++ b/include/linux/if_bridge.h
> @@ -105,13 +105,13 @@ static inline bool br_vlan_enabled(const struct net_device *dev)
>  
>  static inline int br_vlan_get_pvid(const struct net_device *dev, u16 *p_pvid)
>  {
> -	return -1;
> +	return -EINVAL;
>  }
>  
>  static inline int br_vlan_get_info(const struct net_device *dev, u16 vid,
>  				   struct bridge_vlan_info *p_vinfo)
>  {
> -	return -1;
> +	return -EINVAL;
>  }
>  #endif
>  
> 

Acked-by: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>