can: af_can: add missing identifiers to struct receiver::func

This patch adds the missing identifiers to the struct receiver::func
declaration.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

net/can/af_can.h

@@ -53,7 +53,7 @@ struct receiver {
 	canid_t can_id;
 	canid_t mask;
 	unsigned long matches;
-	void (*func)(struct sk_buff *, void *);
+	void (*func)(struct sk_buff *skb, void *data);
 	void *data;
 	char *ident;
 	struct sock *sk;