netdev - Re: [PATCH net] ipv6: Fix getsockopt() for sockets with default IPV6

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Date:   Tue, 23 Jan 2018 19:55:52 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     ben.hutchings@...ethink.co.uk
Cc:     kuznet@....inr.ac.ru, yoshfuji@...ux-ipv6.org,
        netdev@...r.kernel.org
Subject: Re: [PATCH net] ipv6: Fix getsockopt() for sockets with default
 IPV6_AUTOFLOWLABEL

From: Ben Hutchings <ben.hutchings@...ethink.co.uk>
Date: Mon, 22 Jan 2018 20:06:42 +0000

> Commit 513674b5a2c9 ("net: reevalulate autoflowlabel setting after
> sysctl setting") removed the initialisation of
> ipv6_pinfo::autoflowlabel and added a second flag to indicate
> whether this field or the net namespace default should be used.
> 
> The getsockopt() handling for this case was not updated, so it
> currently returns 0 for all sockets for which IPV6_AUTOFLOWLABEL is
> not explicitly enabled.  Fix it to return the effective value, whether
> that has been set at the socket or net namespace level.
> 
> Fixes: 513674b5a2c9 ("net: reevalulate autoflowlabel setting after sysctl ...")
> Signed-off-by: Ben Hutchings <ben.hutchings@...ethink.co.uk>
> ---
> This will need to go to stable, as the earlier commit did.

Applied and queued up for -stable, thanks Ben.