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@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ppp/pptp.c b/drivers/net/ppp/pptp.c
index 162464f..9785a3a 100644
--- a/drivers/net/ppp/pptp.c
+++ b/drivers/net/ppp/pptp.c
@@ -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);