From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen@networkplumber.org>
Subject: [PATCH net-next] pptp: fix sparse pointer warning
Date: Thu, 8 Aug 2013 10:27:14 -0700
Message-ID: <20130808102714.6f16ff43@nehalam.linuxnetplumber.net>
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Cc: netdev@vger.kernel.org
To: Dmitry Kozlov <xeb@mail.ru>, David Miller <davem@davemloft.net>
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callid_sock array is referenced via rcu_dereference and
sparse rcu checks complains about address space mismatch.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>


--- a/drivers/net/ppp/pptp.c	2013-05-11 15:58:52.472353116 -0700
+++ b/drivers/net/ppp/pptp.c	2013-07-30 14:40:52.602172742 -0700
@@ -47,7 +47,7 @@
 #define MAX_CALLID 65535
 
 static DECLARE_BITMAP(callid_bitmap, MAX_CALLID + 1);
-static struct pppox_sock **callid_sock;
+static struct pppox_sock __rcu **callid_sock;
 
 static DEFINE_SPINLOCK(chan_lock);