mac80211: separate encoding/bandwidth from flags

We currently use a lot of flags that are mutually incompatible,
separate this out into actual encoding and bandwidth enum values.

Much of this again done with spatch, with manual post-editing,
mostly to add the switch statements and get rid of the conversions.

@@
expression status;
@@
-status->enc_flags |= RX_ENC_FLAG_80MHZ
+status->bw = RATE_INFO_BW_80
@@
expression status;
@@
-status->enc_flags |= RX_ENC_FLAG_40MHZ
+status->bw = RATE_INFO_BW_40
@@
expression status;
@@
-status->enc_flags |= RX_ENC_FLAG_20MHZ
+status->bw = RATE_INFO_BW_20
@@
expression status;
@@
-status->enc_flags |= RX_ENC_FLAG_160MHZ
+status->bw = RATE_INFO_BW_160
@@
expression status;
@@
-status->enc_flags |= RX_ENC_FLAG_5MHZ
+status->bw = RATE_INFO_BW_5
@@
expression status;
@@
-status->enc_flags |= RX_ENC_FLAG_10MHZ
+status->bw = RATE_INFO_BW_10

@@
expression status;
@@
-status->enc_flags |= RX_ENC_FLAG_VHT
+status->encoding = RX_ENC_VHT
@@
expression status;
@@
-status->enc_flags |= RX_ENC_FLAG_HT
+status->encoding = RX_ENC_HT
@@
expression status;
@@
-status.enc_flags |= RX_ENC_FLAG_VHT
+status.encoding = RX_ENC_VHT
@@
expression status;
@@
-status.enc_flags |= RX_ENC_FLAG_HT
+status.encoding = RX_ENC_HT

@@
expression status;
@@
-(status->enc_flags & RX_ENC_FLAG_HT)
+(status->encoding == RX_ENC_HT)
@@
expression status;
@@
-(status->enc_flags & RX_ENC_FLAG_VHT)
+(status->encoding == RX_ENC_VHT)

@@
expression status;
@@
-(status->enc_flags & RX_ENC_FLAG_5MHZ)
+(status->bw == RATE_INFO_BW_5)
@@
expression status;
@@
-(status->enc_flags & RX_ENC_FLAG_10MHZ)
+(status->bw == RATE_INFO_BW_10)
@@
expression status;
@@
-(status->enc_flags & RX_ENC_FLAG_40MHZ)
+(status->bw == RATE_INFO_BW_40)
@@
expression status;
@@
-(status->enc_flags & RX_ENC_FLAG_80MHZ)
+(status->bw == RATE_INFO_BW_80)
@@
expression status;
@@
-(status->enc_flags & RX_ENC_FLAG_160MHZ)
+(status->bw == RATE_INFO_BW_160)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

drivers/net/wireless/ath/ath9k/ar9003_mac.c

@@ -495,6 +495,7 @@ int ath9k_hw_process_rxdesc_edma(struct ath_hw *ah, struct ath_rx_status *rxs,
 	rxs->rs_status = 0;
 	rxs->rs_flags =  0;
 	rxs->enc_flags = 0;
+	rxs->bw = RATE_INFO_BW_20;
 
 	rxs->rs_datalen = rxsp->status2 & AR_DataLen;
 	rxs->rs_tstamp =  rxsp->status3;

drivers/net/wireless/ath/ath9k/common.c

@@ -181,13 +181,15 @@ int ath9k_cmn_process_rate(struct ath_common *common,
 	sband = hw->wiphy->bands[band];
 
 	if (IS_CHAN_QUARTER_RATE(ah->curchan))
-		rxs->enc_flags |= RX_ENC_FLAG_5MHZ;
+		rxs->bw = RATE_INFO_BW_5;
 	else if (IS_CHAN_HALF_RATE(ah->curchan))
-		rxs->enc_flags |= RX_ENC_FLAG_10MHZ;
+		rxs->bw = RATE_INFO_BW_10;
 
 	if (rx_stats->rs_rate & 0x80) {
 		/* HT rate */
-		rxs->enc_flags |= RX_ENC_FLAG_HT | rx_stats->enc_flags;
+		rxs->encoding = RX_ENC_HT;
+		rxs->enc_flags |= rx_stats->enc_flags;
+		rxs->bw = rx_stats->bw;
 		rxs->rate_idx = rx_stats->rs_rate & 0x7f;
 		return 0;
 	}

drivers/net/wireless/ath/ath9k/debug_sta.c

@@ -116,7 +116,7 @@ void ath_debug_rate_stats(struct ath_softc *sc,
 		if (rxs->rate_idx >= ARRAY_SIZE(rstats->ht_stats))
 			goto exit;
 
-		if (rxs->enc_flags & RX_ENC_FLAG_40MHZ)
+		if ((rxs->bw == RATE_INFO_BW_40))
 			rstats->ht_stats[rxs->rate_idx].ht40_cnt++;
 		else
 			rstats->ht_stats[rxs->rate_idx].ht20_cnt++;

drivers/net/wireless/ath/ath9k/htc_drv_txrx.c

@@ -930,8 +930,9 @@ static inline void convert_htc_flag(struct ath_rx_status *rx_stats,
 				   struct ath_htc_rx_status *rxstatus)
 {
 	rx_stats->enc_flags = 0;
+	rx_stats->bw = RATE_INFO_BW_20;
 	if (rxstatus->rs_flags & ATH9K_RX_2040)
-		rx_stats->enc_flags |= RX_ENC_FLAG_40MHZ;
+		rx_stats->bw = RATE_INFO_BW_40;
 	if (rxstatus->rs_flags & ATH9K_RX_GI)
 		rx_stats->enc_flags |= RX_ENC_FLAG_SHORT_GI;
 }

drivers/net/wireless/ath/ath9k/mac.c

@@ -536,6 +536,7 @@ int ath9k_hw_rxprocdesc(struct ath_hw *ah, struct ath_desc *ds,
 	rs->rs_status = 0;
 	rs->rs_flags = 0;
 	rs->enc_flags = 0;
+	rs->bw = RATE_INFO_BW_20;
 
 	rs->rs_datalen = ads.ds_rxstatus1 & AR_DataLen;
 	rs->rs_tstamp = ads.AR_RcvTimestamp;

drivers/net/wireless/ath/ath9k/mac.h

@@ -16,6 +16,7 @@
 
 #ifndef MAC_H
 #define MAC_H
+#include <net/cfg80211.h>
 
 #define set11nTries(_series, _index) \
 	(SM((_series)[_index].Tries, AR_XmitDataTries##_index))
@@ -144,6 +145,7 @@ struct ath_rx_status {
 	u32 evm3;
 	u32 evm4;
 	u16 enc_flags;
+	enum rate_info_bw bw;
 };
 
 struct ath_htc_rx_status {

drivers/net/wireless/ath/ath9k/recv.c

@@ -1038,10 +1038,10 @@ static void ath_rx_count_airtime(struct ath_softc *sc,
 	rxs = IEEE80211_SKB_RXCB(skb);
 
 	is_sgi = !!(rxs->enc_flags & RX_ENC_FLAG_SHORT_GI);
-	is_40 = !!(rxs->enc_flags & RX_ENC_FLAG_40MHZ);
+	is_40 = !!(rxs->bw == RATE_INFO_BW_40);
 	is_sp = !!(rxs->enc_flags & RX_ENC_FLAG_SHORTPRE);
 
-	if (!!(rxs->enc_flags & RX_ENC_FLAG_HT)) {
+	if (!!(rxs->encoding == RX_ENC_HT)) {
 		/* MCS rates */
 
 		airtime += ath_pkt_duration(sc, rxs->rate_idx, len,