mt76: mt7915: remove mt7915_mcu_add_he()

Make mt7915_mcu_sta_he_tlv() as a part of mt7915_mcu_add_rate_ctrl() as
firmware rate control should get HE rate information from sta_rec_he,
and reduce a global function accordingly.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7915/mac.c

@@ -2077,10 +2077,8 @@ void mt7915_mac_sta_rc_work(struct work_struct *work)
 
 		if (changed & (IEEE80211_RC_SUPP_RATES_CHANGED |
 			       IEEE80211_RC_NSS_CHANGED |
-			       IEEE80211_RC_BW_CHANGED)) {
-			mt7915_mcu_add_he(dev, vif, sta);
-			mt7915_mcu_add_rate_ctrl(dev, vif, sta);
-		}
+			       IEEE80211_RC_BW_CHANGED))
+			mt7915_mcu_add_rate_ctrl(dev, vif, sta, true);
 
 		if (changed & IEEE80211_RC_SMPS_CHANGED)
 			mt7915_mcu_add_smps(dev, vif, sta);

drivers/net/wireless/mediatek/mt76/mt7915/main.c

@@ -663,7 +663,7 @@ int mt7915_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 	if (ret)
 		return ret;
 
-	return mt7915_mcu_add_rate_ctrl(dev, vif, sta);
+	return mt7915_mcu_add_rate_ctrl(dev, vif, sta, false);
 }
 
 void mt7915_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,

drivers/net/wireless/mediatek/mt76/mt7915/mcu.c

@@ -2149,42 +2149,26 @@ mt7915_mcu_sta_rate_ctrl_tlv(struct sk_buff *skb, struct mt7915_dev *dev,
 }
 
 int mt7915_mcu_add_rate_ctrl(struct mt7915_dev *dev, struct ieee80211_vif *vif,
-			     struct ieee80211_sta *sta)
+			     struct ieee80211_sta *sta, bool changed)
 {
 	struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv;
 	struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv;
 	struct sk_buff *skb;
-	int len = sizeof(struct sta_req_hdr) + sizeof(struct sta_rec_ra);
-
-	skb = mt7915_mcu_alloc_sta_req(dev, mvif, msta, len);
-	if (IS_ERR(skb))
-		return PTR_ERR(skb);
-
-	mt7915_mcu_sta_rate_ctrl_tlv(skb, dev, vif, sta);
 
-	return mt76_mcu_skb_send_msg(&dev->mt76, skb,
-				     MCU_EXT_CMD(STA_REC_UPDATE), true);
-}
-
-int mt7915_mcu_add_he(struct mt7915_dev *dev, struct ieee80211_vif *vif,
-		      struct ieee80211_sta *sta)
-{
-	struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv;
-	struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv;
-	struct sk_buff *skb;
-	int len;
-
-	if (!sta->he_cap.has_he)
-		return 0;
-
-	len = sizeof(struct sta_req_hdr) + sizeof(struct sta_rec_he);
-
-	skb = mt7915_mcu_alloc_sta_req(dev, mvif, msta, len);
+	skb = mt7915_mcu_alloc_sta_req(dev, mvif, msta,
+				       MT7915_STA_UPDATE_MAX_SIZE);
 	if (IS_ERR(skb))
 		return PTR_ERR(skb);
 
+	/* firmware rc algorithm refers to sta_rec_he for HE control.
+	 * once dev->rc_work changes the settings driver should also
+	 * update sta_rec_he here.
+	 */
+	if (sta->he_cap.has_he && changed)
 		mt7915_mcu_sta_he_tlv(skb, sta, vif);
 
+	mt7915_mcu_sta_rate_ctrl_tlv(skb, dev, vif, sta);
+
 	return mt76_mcu_skb_send_msg(&dev->mt76, skb,
 				     MCU_EXT_CMD(STA_REC_UPDATE), true);
 }

drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h

@@ -409,9 +409,7 @@ int mt7915_mcu_add_beacon(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 int mt7915_mcu_add_obss_spr(struct mt7915_dev *dev, struct ieee80211_vif *vif,
                             bool enable);
 int mt7915_mcu_add_rate_ctrl(struct mt7915_dev *dev, struct ieee80211_vif *vif,
-			     struct ieee80211_sta *sta);
-int mt7915_mcu_add_he(struct mt7915_dev *dev, struct ieee80211_vif *vif,
-		      struct ieee80211_sta *sta);
+			     struct ieee80211_sta *sta, bool changed);
 int mt7915_mcu_add_smps(struct mt7915_dev *dev, struct ieee80211_vif *vif,
 			struct ieee80211_sta *sta);
 int mt7915_set_channel(struct mt7915_phy *phy);