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);