From: David S. Miller <davem@davemloft.net>
Date: Thu, 7 Feb 2019 18:48:42 +0000 (-0800)
Subject: Merge branch 'ipv6-fixes'
X-Git-Tag: v5.0-rc6~19^2~1
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=ec7fd009e87cf5459fe9aef1c9a6111e093e49cd;p=users%2Fjedix%2Flinux-maple.git

Merge branch 'ipv6-fixes'

Hangbin Liu says:

====================
fix two kernel panics when disabled IPv6 on boot up

When disabled IPv6 on boot up, since there is no ipv6 route tables, we should
not call rt6_lookup. Fix them by checking if we have inet6_dev pointer on
netdevice.

v2: Fix idev reference leak, declarations and code mixing as Stefano,
    Eric pointed. Since we only want to check if idev exists and not
    reference it, use __in6_dev_get() insteand of in6_dev_get().
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
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ec7fd009e87cf5459fe9aef1c9a6111e093e49cd