1 files changed, 14 insertions, 13 deletions

diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
index 0e425cb4bbb1..8c13479b17cd 100644
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -15,6 +15,7 @@
  */
 
 #include "hw.h"
+#include "hw-ops.h"
 
 static void ath9k_hw_set_txq_interrupts(struct ath_hw *ah,
 					struct ath9k_tx_queue_info *qi)
@@ -39,7 +40,6 @@ static void ath9k_hw_set_txq_interrupts(struct ath_hw *ah,
 	REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
 
 	REGWRITE_BUFFER_FLUSH(ah);
-	DISABLE_REGWRITE_BUFFER(ah);
 }
 
 u32 ath9k_hw_gettxbuf(struct ath_hw *ah, u32 q)
@@ -491,8 +491,6 @@ bool ath9k_hw_resettxqueue(struct ath_hw *ah, u32 q)
 	REG_WRITE(ah, AR_DMISC(q),
 		  AR_D_MISC_CW_BKOFF_EN | AR_D_MISC_FRAG_WAIT_EN | 0x2);
 
-	REGWRITE_BUFFER_FLUSH(ah);
-
 	if (qi->tqi_cbrPeriod) {
 		REG_WRITE(ah, AR_QCBRCFG(q),
 			  SM(qi->tqi_cbrPeriod, AR_Q_CBRCFG_INTERVAL) |
@@ -508,8 +506,6 @@ bool ath9k_hw_resettxqueue(struct ath_hw *ah, u32 q)
 			  AR_Q_RDYTIMECFG_EN);
 	}
 
-	REGWRITE_BUFFER_FLUSH(ah);
-
 	REG_WRITE(ah, AR_DCHNTIME(q),
 		  SM(qi->tqi_burstTime, AR_D_CHNTIME_DUR) |
 		  (qi->tqi_burstTime ? AR_D_CHNTIME_EN : 0));
@@ -529,7 +525,6 @@ bool ath9k_hw_resettxqueue(struct ath_hw *ah, u32 q)
 	}
 
 	REGWRITE_BUFFER_FLUSH(ah);
-	DISABLE_REGWRITE_BUFFER(ah);
 
 	if (qi->tqi_qflags & TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE) {
 		REG_WRITE(ah, AR_DMISC(q),
@@ -552,10 +547,14 @@ bool ath9k_hw_resettxqueue(struct ath_hw *ah, u32 q)
 			  | AR_D_MISC_POST_FR_BKOFF_DIS);
 
 		REGWRITE_BUFFER_FLUSH(ah);
-		DISABLE_REGWRITE_BUFFER(ah);
 
-		/* cwmin and cwmax should be 0 for beacon queue */
-		if (AR_SREV_9300_20_OR_LATER(ah)) {
+		/*
+		 * cwmin and cwmax should be 0 for beacon queue
+		 * but not for IBSS as we would create an imbalance
+		 * on beaconing fairness for participating nodes.
+		 */
+		if (AR_SREV_9300_20_OR_LATER(ah) &&
+		    ah->opmode != NL80211_IFTYPE_ADHOC) {
 			REG_WRITE(ah, AR_DLCL_IFS(q), SM(0, AR_D_LCL_IFS_CWMIN)
 				  | SM(0, AR_D_LCL_IFS_CWMAX)
 				  | SM(qi->tqi_aifs, AR_D_LCL_IFS_AIFS));
@@ -579,7 +578,6 @@ bool ath9k_hw_resettxqueue(struct ath_hw *ah, u32 q)
 			     AR_D_MISC_ARB_LOCKOUT_CNTRL_S));
 
 		REGWRITE_BUFFER_FLUSH(ah);
-		DISABLE_REGWRITE_BUFFER(ah);
 
 		break;
 	case ATH9K_TX_QUEUE_PSPOLL:
@@ -705,8 +703,11 @@ int ath9k_hw_rxprocdesc(struct ath_hw *ah, struct ath_desc *ds,
 			rs->rs_phyerr = phyerr;
 		} else if (ads.ds_rxstatus8 & AR_DecryptCRCErr)
 			rs->rs_status |= ATH9K_RXERR_DECRYPT;
-		else if (ads.ds_rxstatus8 & AR_MichaelErr)
+		else if ((ads.ds_rxstatus8 & AR_MichaelErr) &&
+		         rs->rs_keyix != ATH9K_RXKEYIX_INVALID)
 			rs->rs_status |= ATH9K_RXERR_MIC;
+		else if (ads.ds_rxstatus8 & AR_KeyMiss)
+			rs->rs_status |= ATH9K_RXERR_DECRYPT;
 	}
 
 	return 0;
@@ -756,11 +757,11 @@ void ath9k_hw_putrxbuf(struct ath_hw *ah, u32 rxdp)
 }
 EXPORT_SYMBOL(ath9k_hw_putrxbuf);
 
-void ath9k_hw_startpcureceive(struct ath_hw *ah)
+void ath9k_hw_startpcureceive(struct ath_hw *ah, bool is_scanning)
 {
 	ath9k_enable_mib_counters(ah);
 
-	ath9k_ani_reset(ah);
+	ath9k_ani_reset(ah, is_scanning);
 
 	REG_CLR_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
 }