netdev - [PATCH net-next] pptp: fix sparse pointer warning

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Message-ID: <20130808102714.6f16ff43@nehalam.linuxnetplumber.net>
Date:	Thu, 8 Aug 2013 10:27:14 -0700
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	Dmitry Kozlov <xeb@...l.ru>, David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org
Subject: [PATCH net-next] pptp: fix sparse pointer warning

callid_sock array is referenced via rcu_dereference and
sparse rcu checks complains about address space mismatch.

Signed-off-by: Stephen Hemminger <stephen@...workplumber.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);
 
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