ath9k: Use a single opmode variable

ah_opmode and sc_opmode are redundant.
This patch removes sc_opmode.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath9k/hw.c b/drivers/net/wireless/ath9k/hw.c
index 3d879e7..24b78c2 100644
--- a/drivers/net/wireless/ath9k/hw.c
+++ b/drivers/net/wireless/ath9k/hw.c
@@ -5839,7 +5839,7 @@
 }
 
 
-bool ath9k_hw_reset(struct ath_hal *ah, enum ath9k_opmode opmode,
+bool ath9k_hw_reset(struct ath_hal *ah,
 		    struct ath9k_channel *chan,
 		    enum ath9k_ht_macmode macmode,
 		    u8 txchainmask, u8 rxchainmask,
@@ -5953,7 +5953,7 @@
 		  | (ah->ah_config.
 		     ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
 		  | ahp->ah_staId1Defaults);
-	ath9k_hw_set_operating_mode(ah, opmode);
+	ath9k_hw_set_operating_mode(ah, ah->ah_opmode);
 
 	REG_WRITE(ah, AR_BSSMSKL, get_unaligned_le32(ahp->ah_bssidmask));
 	REG_WRITE(ah, AR_BSSMSKU, get_unaligned_le16(ahp->ah_bssidmask + 4));
@@ -5983,13 +5983,11 @@
 	for (i = 0; i < ah->ah_caps.total_queues; i++)
 		ath9k_hw_resettxqueue(ah, i);
 
-	ath9k_hw_init_interrupt_masks(ah, opmode);
+	ath9k_hw_init_interrupt_masks(ah, ah->ah_opmode);
 	ath9k_hw_init_qos(ah);
 
 	ath9k_hw_init_user_settings(ah);
 
-	ah->ah_opmode = opmode;
-
 	REG_WRITE(ah, AR_STA_ID1,
 		  REG_READ(ah, AR_STA_ID1) | AR_STA_ID1_PRESERVE_SEQNUM);