netdev - Re: [PATCH net-next] net: ipv6: Check that idev is non-NULL in rt6_fill

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Message-Id: <20170122.233239.720617884825007357.davem@davemloft.net>
Date:   Sun, 22 Jan 2017 23:32:39 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     dsa@...ulusnetworks.com
Cc:     netdev@...r.kernel.org, xiaolong.ye@...el.com
Subject: Re: [PATCH net-next] net: ipv6: Check that idev is non-NULL in
 rt6_fill_node

From: David Ahern <dsa@...ulusnetworks.com>
Date: Sun, 22 Jan 2017 20:08:00 -0800

> The ipv6 route dump code passes ip6_null_entry to rt6_fill_node.

Doesn't this fact cause you to take a pause?

I can't see a legitimate reason to dump the null entry, it's
a marker rather than a real entry.