ath5k: use direct function calls for descriptors when possible

Use direct function calls for ath5k_hw_setup_rx_desc() and
ath5k_hw_setup_mrr_tx_desc() instead of a function pointer which always pointed
to the same function in the case of ath5k_hw_setup_rx_desc() and which is
easily unified in the case of ath5k_hw_setup_mrr_tx_desc().

Also simplify the initialization function for the remaining function pointers.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h
index 387c120..ea6362a 100644
--- a/drivers/net/wireless/ath/ath5k/ath5k.h
+++ b/drivers/net/wireless/ath/ath5k/ath5k.h
@@ -1127,15 +1127,10 @@
 	/*
 	 * Function pointers
 	 */
-	int (*ah_setup_rx_desc)(struct ath5k_hw *ah, struct ath5k_desc *desc,
-				u32 size, unsigned int flags);
 	int (*ah_setup_tx_desc)(struct ath5k_hw *, struct ath5k_desc *,
 		unsigned int, unsigned int, int, enum ath5k_pkt_type,
 		unsigned int, unsigned int, unsigned int, unsigned int,
 		unsigned int, unsigned int, unsigned int, unsigned int);
-	int (*ah_setup_mrr_tx_desc)(struct ath5k_hw *, struct ath5k_desc *,
-		unsigned int, unsigned int, unsigned int, unsigned int,
-		unsigned int, unsigned int);
 	int (*ah_proc_tx_desc)(struct ath5k_hw *, struct ath5k_desc *,
 		struct ath5k_tx_status *);
 	int (*ah_proc_rx_desc)(struct ath5k_hw *, struct ath5k_desc *,
@@ -1236,6 +1231,11 @@
 
 /* Hardware Descriptor Functions */
 int ath5k_hw_init_desc_functions(struct ath5k_hw *ah);
+int ath5k_hw_setup_rx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
+			   u32 size, unsigned int flags);
+int ath5k_hw_setup_mrr_tx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
+	unsigned int tx_rate1, u_int tx_tries1, u_int tx_rate2,
+	u_int tx_tries2, unsigned int tx_rate3, u_int tx_tries3);
 
 /* GPIO Functions */
 void ath5k_hw_set_ledstate(struct ath5k_hw *ah, unsigned int state);