From a5a3182e50b5be88efd01050ba6f35e2d0aaee03 Mon Sep 17 00:00:00 2001
From: Paolo Abeni <pabeni@redhat.com>
Date: Thu, 15 Feb 2018 16:59:49 +0100
Subject: [PATCH] dn_getsockoptdecnet: move nf_{get/set}sockopt outside sock
 lock

commit dfec091439bb2acf763497cfc58f2bdfc67c56b7 upstream.

After commit 3f34cfae1238 ("netfilter: on sockopt() acquire sock lock
only in the required scope"), the caller of nf_{get/set}sockopt() must
not hold any lock, but, in such changeset, I forgot to cope with DECnet.

This commit addresses the issue moving the nf call outside the lock,
in the dn_{get,set}sockopt() with the same schema currently used by
ipv4 and ipv6. Also moves the unhandled sockopts of the end of the main
switch statements, to improve code readability.

Reported-by: Petr Vandrovec <petr@vandrovec.name>
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=198791#c2
Fixes: 3f34cfae1238 ("netfilter: on sockopt() acquire sock lock only in the required scope")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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