rtlwifi/rtw88: convert tasklets to use new tasklet_setup() API

In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly
and remove .data field.

Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200817090637.26887-16-allen.cryptic@gmail.com

drivers/net/wireless/realtek/rtlwifi/pci.c

@@ -1061,16 +1061,18 @@ done:
 	return ret;
 }
 
-static void _rtl_pci_irq_tasklet(unsigned long data)
+static void _rtl_pci_irq_tasklet(struct tasklet_struct *t)
 {
-	struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
+	struct rtl_priv *rtlpriv = from_tasklet(rtlpriv, t, works.irq_tasklet);
+	struct ieee80211_hw *hw = rtlpriv->hw;
 	_rtl_pci_tx_chk_waitq(hw);
 }
 
-static void _rtl_pci_prepare_bcn_tasklet(unsigned long data)
+static void _rtl_pci_prepare_bcn_tasklet(struct tasklet_struct *t)
 {
-	struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_priv *rtlpriv = from_tasklet(rtlpriv, t,
+						works.irq_prepare_bcn_tasklet);
+	struct ieee80211_hw *hw = rtlpriv->hw;
 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 	struct rtl8192_tx_ring *ring = NULL;
@@ -1194,12 +1196,9 @@ static void _rtl_pci_init_struct(struct ieee80211_hw *hw,
 	rtlpci->acm_method = EACMWAY2_SW;
 
 	/*task */
-	tasklet_init(&rtlpriv->works.irq_tasklet,
-		     _rtl_pci_irq_tasklet,
-		     (unsigned long)hw);
-	tasklet_init(&rtlpriv->works.irq_prepare_bcn_tasklet,
-		     _rtl_pci_prepare_bcn_tasklet,
-		     (unsigned long)hw);
+	tasklet_setup(&rtlpriv->works.irq_tasklet, _rtl_pci_irq_tasklet);
+	tasklet_setup(&rtlpriv->works.irq_prepare_bcn_tasklet,
+		     _rtl_pci_prepare_bcn_tasklet);
 	INIT_WORK(&rtlpriv->works.lps_change_work,
 		  rtl_lps_change_work_callback);
 }

drivers/net/wireless/realtek/rtlwifi/usb.c

@@ -289,7 +289,7 @@ static int _rtl_usb_init_tx(struct ieee80211_hw *hw)
 	return 0;
 }
 
-static void _rtl_rx_work(unsigned long param);
+static void _rtl_rx_work(struct tasklet_struct *t);
 
 static int _rtl_usb_init_rx(struct ieee80211_hw *hw)
 {
@@ -310,8 +310,7 @@ static int _rtl_usb_init_rx(struct ieee80211_hw *hw)
 	init_usb_anchor(&rtlusb->rx_cleanup_urbs);
 
 	skb_queue_head_init(&rtlusb->rx_queue);
-	rtlusb->rx_work_tasklet.func = _rtl_rx_work;
-	rtlusb->rx_work_tasklet.data = (unsigned long)rtlusb;
+	rtlusb->rx_work_tasklet.func = (void(*)(unsigned long))_rtl_rx_work;
 
 	return 0;
 }
@@ -528,9 +527,9 @@ static void _rtl_rx_pre_process(struct ieee80211_hw *hw, struct sk_buff *skb)
 
 #define __RX_SKB_MAX_QUEUED	64
 
-static void _rtl_rx_work(unsigned long param)
+static void _rtl_rx_work(struct tasklet_struct *t)
 {
-	struct rtl_usb *rtlusb = (struct rtl_usb *)param;
+	struct rtl_usb *rtlusb = from_tasklet(rtlusb, t, rx_work_tasklet);
 	struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf);
 	struct sk_buff *skb;
 

drivers/net/wireless/realtek/rtw88/main.c

@@ -1422,8 +1422,7 @@ int rtw_core_init(struct rtw_dev *rtwdev)
 
 	timer_setup(&rtwdev->tx_report.purge_timer,
 		    rtw_tx_report_purge_timer, 0);
-	tasklet_init(&rtwdev->tx_tasklet, rtw_tx_tasklet,
-		     (unsigned long)rtwdev);
+	tasklet_setup(&rtwdev->tx_tasklet, rtw_tx_tasklet);
 
 	INIT_DELAYED_WORK(&rtwdev->watch_dog_work, rtw_watch_dog_work);
 	INIT_DELAYED_WORK(&coex->bt_relink_work, rtw_coex_bt_relink_work);

drivers/net/wireless/realtek/rtw88/tx.c

@@ -587,9 +587,9 @@ static void rtw_txq_push(struct rtw_dev *rtwdev,
 	rcu_read_unlock();
 }
 
-void rtw_tx_tasklet(unsigned long data)
+void rtw_tx_tasklet(struct tasklet_struct *t)
 {
-	struct rtw_dev *rtwdev = (void *)data;
+	struct rtw_dev *rtwdev = from_tasklet(rtwdev, t, tx_tasklet);
 	struct rtw_txq *rtwtxq, *tmp;
 
 	spin_lock_bh(&rtwdev->txq_lock);

drivers/net/wireless/realtek/rtw88/tx.h

@@ -94,7 +94,7 @@ void rtw_tx(struct rtw_dev *rtwdev,
 	    struct sk_buff *skb);
 void rtw_txq_init(struct rtw_dev *rtwdev, struct ieee80211_txq *txq);
 void rtw_txq_cleanup(struct rtw_dev *rtwdev, struct ieee80211_txq *txq);
-void rtw_tx_tasklet(unsigned long data);
+void rtw_tx_tasklet(struct tasklet_struct *t);
 void rtw_tx_pkt_info_update(struct rtw_dev *rtwdev,
 			    struct rtw_tx_pkt_info *pkt_info,
 			    struct ieee80211_sta *sta,