mt76: store current channel survey_state in struct mt76_dev

Move mt76_channel_state() from mt76.h to mac80211.c
Preparation for updating channel state from more places in the drivers/core
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mac80211.c

@@ -180,6 +180,7 @@ mt76_init_sband(struct mt76_dev *dev, struct mt76_sband *msband,
 	sband->bitrates = rates;
 	sband->n_bitrates = n_rates;
 	dev->chandef.chan = &sband->channels[0];
+	dev->chan_state = &msband->chan[0];
 
 	ht_cap = &sband->ht_cap;
 	ht_cap->ht_supported = true;
@@ -398,11 +399,25 @@ bool mt76_has_tx_pending(struct mt76_dev *dev)
 }
 EXPORT_SYMBOL_GPL(mt76_has_tx_pending);
 
+static struct mt76_channel_state *
+mt76_channel_state(struct mt76_dev *dev, struct ieee80211_channel *c)
+{
+	struct mt76_sband *msband;
+	int idx;
+
+	if (c->band == NL80211_BAND_2GHZ)
+		msband = &dev->sband_2g;
+	else
+		msband = &dev->sband_5g;
+
+	idx = c - &msband->sband.channels[0];
+	return &msband->chan[idx];
+}
+
 void mt76_set_channel(struct mt76_dev *dev)
 {
 	struct ieee80211_hw *hw = dev->hw;
 	struct cfg80211_chan_def *chandef = &hw->conf.chandef;
-	struct mt76_channel_state *state;
 	bool offchannel = hw->conf.flags & IEEE80211_CONF_OFFCHANNEL;
 	int timeout = HZ / 5;
 
@@ -412,14 +427,13 @@ void mt76_set_channel(struct mt76_dev *dev)
 		dev->drv->update_survey(dev);
 
 	dev->chandef = *chandef;
+	dev->chan_state = mt76_channel_state(dev, chandef->chan);
 
 	if (!offchannel)
 		dev->main_chan = chandef->chan;
 
-	if (chandef->chan != dev->main_chan) {
-		state = mt76_channel_state(dev, chandef->chan);
-		memset(state, 0, sizeof(*state));
-	}
+	if (chandef->chan != dev->main_chan)
+		memset(dev->chan_state, 0, sizeof(*dev->chan_state));
 }
 EXPORT_SYMBOL_GPL(mt76_set_channel);
 

drivers/net/wireless/mediatek/mt76/mt76.h

@@ -424,6 +424,7 @@ struct mt76_dev {
 	struct cfg80211_chan_def chandef;
 	struct ieee80211_channel *main_chan;
 
+	struct mt76_channel_state *chan_state;
 	spinlock_t lock;
 	spinlock_t cc_lock;
 
@@ -605,21 +606,6 @@ static inline u16 mt76_rev(struct mt76_dev *dev)
 #define mt76_queue_tx_cleanup(dev, ...)	(dev)->mt76.queue_ops->tx_cleanup(&((dev)->mt76), __VA_ARGS__)
 #define mt76_queue_kick(dev, ...)	(dev)->mt76.queue_ops->kick(&((dev)->mt76), __VA_ARGS__)
 
-static inline struct mt76_channel_state *
-mt76_channel_state(struct mt76_dev *dev, struct ieee80211_channel *c)
-{
-	struct mt76_sband *msband;
-	int idx;
-
-	if (c->band == NL80211_BAND_2GHZ)
-		msband = &dev->sband_2g;
-	else
-		msband = &dev->sband_5g;
-
-	idx = c - &msband->sband.channels[0];
-	return &msband->chan[idx];
-}
-
 struct mt76_dev *mt76_alloc_device(struct device *pdev, unsigned int size,
 				   const struct ieee80211_ops *ops,
 				   const struct mt76_driver_ops *drv_ops);

drivers/net/wireless/mediatek/mt76/mt7603/mac.c

@@ -1491,7 +1491,7 @@ void mt7603_update_channel(struct mt76_dev *mdev)
 	if (!test_bit(MT76_STATE_RUNNING, &dev->mt76.state))
 		return;
 
-	state = mt76_channel_state(&dev->mt76, dev->mt76.chandef.chan);
+	state = mdev->chan_state;
 	busy = mt76_rr(dev, MT_MIB_STAT_PSCCA);
 
 	spin_lock_bh(&dev->mt76.cc_lock);

drivers/net/wireless/mediatek/mt76/mt7615/mac.c

@@ -1269,7 +1269,7 @@ void mt7615_update_channel(struct mt76_dev *mdev)
 	if (!test_bit(MT76_STATE_RUNNING, &mdev->state))
 		return;
 
-	state = mt76_channel_state(mdev, mdev->chandef.chan);
+	state = mdev->chan_state;
 	/* TODO: add DBDC support */
 	busy = mt76_get_field(dev, MT_MIB_SDR16(0), MT_MIB_BUSY_MASK);
 

drivers/net/wireless/mediatek/mt76/mt76x02_mac.c

@@ -986,7 +986,7 @@ void mt76x02_update_channel(struct mt76_dev *mdev)
 	struct mt76_channel_state *state;
 	u32 active, busy;
 
-	state = mt76_channel_state(&dev->mt76, dev->mt76.chandef.chan);
+	state = mdev->chan_state;
 
 	busy = mt76_rr(dev, MT_CH_BUSY);
 	active = busy + mt76_rr(dev, MT_CH_IDLE);