[TIPC]: Fix 64-bit build warnings.

When storing u32 values in a pointer, need to do
some long casts to keep GCC happy.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index 24d949c..9713d62 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -114,12 +114,12 @@
 
 static inline u32 bcbuf_acks(struct sk_buff *buf)
 {
-	return (u32)TIPC_SKB_CB(buf)->handle;
+	return (u32)(unsigned long)TIPC_SKB_CB(buf)->handle;
 }
 
 static inline void bcbuf_set_acks(struct sk_buff *buf, u32 acks)
 {
-	TIPC_SKB_CB(buf)->handle = (void *)acks;
+	TIPC_SKB_CB(buf)->handle = (void *)(unsigned long)acks;
 }
 
 static inline void bcbuf_decr_acks(struct sk_buff *buf)