netdev - Re: [PATCH -next V2] gre: return more precise errno value when adding tunnel fails

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Message-Id: <20140213.184525.1491360161780549632.davem@davemloft.net>
Date:	Thu, 13 Feb 2014 18:45:25 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	fw@...len.de
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH -next V2] gre: return more precise errno value when
 adding tunnel fails

From: Florian Westphal <fw@...len.de>
Date: Thu, 13 Feb 2014 09:58:35 +0100

> Currently this always returns ENOBUFS, because the return value of
> __ip_tunnel_create is discarded.
> 
> A more common failure is a duplicate name (EEXIST).  Propagate the real
> error code so userspace can display a more meaningful error message.
> 
> Signed-off-by: Florian Westphal <fw@...len.de>

This isn't a change to the GRE code, it's a change to the generic ipv4
tunneling support layer.  Please update your Subject to match.

Thanks.
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