wifi: ath12k: avoid repeated hw access from ar

Currently, the helper functions are accessing mac80211 hw data from the
radio (ar) structure repeatedly. So optimize these helper functions by
storing mac80211 hw data locally and accessing it directly.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20231120235812.2602198-3-quic_periyasa@quicinc.com

drivers/net/wireless/ath/ath12k/reg.c

@@ -199,6 +199,7 @@ static void ath12k_copy_regd(struct ieee80211_regdomain *regd_orig,
 
 int ath12k_regd_update(struct ath12k *ar, bool init)
 {
+	struct ieee80211_hw *hw = ar->hw;
 	struct ieee80211_regdomain *regd, *regd_copy = NULL;
 	int ret, regd_len, pdev_id;
 	struct ath12k_base *ab;
@@ -246,9 +247,9 @@ int ath12k_regd_update(struct ath12k *ar, bool init)
 	}
 
 	rtnl_lock();
-	wiphy_lock(ar->hw->wiphy);
-	ret = regulatory_set_wiphy_regd_sync(ar->hw->wiphy, regd_copy);
-	wiphy_unlock(ar->hw->wiphy);
+	wiphy_lock(hw->wiphy);
+	ret = regulatory_set_wiphy_regd_sync(hw->wiphy, regd_copy);
+	wiphy_unlock(hw->wiphy);
 	rtnl_unlock();
 
 	kfree(regd_copy);
@@ -729,10 +730,10 @@ void ath12k_regd_update_work(struct work_struct *work)
 	}
 }
 
-void ath12k_reg_init(struct ath12k *ar)
+void ath12k_reg_init(struct ieee80211_hw *hw)
 {
-	ar->hw->wiphy->regulatory_flags = REGULATORY_WIPHY_SELF_MANAGED;
-	ar->hw->wiphy->reg_notifier = ath12k_reg_notifier;
+	hw->wiphy->regulatory_flags = REGULATORY_WIPHY_SELF_MANAGED;
+	hw->wiphy->reg_notifier = ath12k_reg_notifier;
 }
 
 void ath12k_reg_free(struct ath12k_base *ab)

drivers/net/wireless/ath/ath12k/reg.h

@@ -89,7 +89,7 @@ enum ath12k_reg_phy_bitmap {
 	ATH12K_REG_PHY_BITMAP_NO11BE	= BIT(6),
 };
 
-void ath12k_reg_init(struct ath12k *ar);
+void ath12k_reg_init(struct ieee80211_hw *hw);
 void ath12k_reg_free(struct ath12k_base *ab);
 void ath12k_regd_update_work(struct work_struct *work);
 struct ieee80211_regdomain *ath12k_reg_build_regd(struct ath12k_base *ab,