netdev - Re: [PATCH] net: ipv6: Remove redundant RTA

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Message-Id: <20170309.130724.2129937577049742239.davem@davemloft.net>
Date:   Thu, 09 Mar 2017 13:07:24 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     dsa@...ulusnetworks.com
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH] net: ipv6: Remove redundant RTA_OIF in multipath routes

From: David Ahern <dsa@...ulusnetworks.com>
Date: Mon,  6 Mar 2017 15:57:31 -0800

> Dinesh reported that RTA_MULTIPATH nexthops are 8-bytes larger with IPv6
> than IPv4. The recent refactoring for multipath support in netlink
> messages does discriminate between non-multipath which needs the OIF
> and multipath which adds a rtnexthop struct for each hop making the
> RTA_OIF attribute redundant. Resolve by adding a flag to the info
> function to skip the oif for multipath.
> 
> Fixes: beb1afac518d ("net: ipv6: Add support to dump multipath routes
>        via RTA_MULTIPATH attribute")
> Reported-by: Dinesh Dutt <ddutt@...ulusnetworks.com>
> Signed-off-by: David Ahern <dsa@...ulusnetworks.com>

Applied.