staging: rtl8712: 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.
Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Allen Pais <apais@linux.microsoft.com>
Link: https://lore.kernel.org/r/20200916061831.57848-1-allen.lkml@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8712/rtl8712_recv.c

@@ -28,7 +28,7 @@
 #include "usb_ops.h"
 #include "wifi.h"
 
-static void recv_tasklet(unsigned long priv);
+static void recv_tasklet(struct tasklet_struct *t);
 
 void r8712_init_recv_priv(struct recv_priv *precvpriv,
 			  struct _adapter *padapter)
@@ -60,8 +60,7 @@ void r8712_init_recv_priv(struct recv_priv *precvpriv,
 		precvbuf++;
 	}
 	precvpriv->free_recv_buf_queue_cnt = NR_RECVBUFF;
-	tasklet_init(&precvpriv->recv_tasklet, recv_tasklet,
-		     (unsigned long)padapter);
+	tasklet_setup(&precvpriv->recv_tasklet, recv_tasklet);
 	skb_queue_head_init(&precvpriv->rx_skb_queue);
 
 	skb_queue_head_init(&precvpriv->free_recv_skb_queue);
@@ -1057,10 +1056,11 @@ static void recvbuf2recvframe(struct _adapter *padapter, struct sk_buff *pskb)
 	} while ((transfer_len > 0) && pkt_cnt > 0);
 }
 
-static void recv_tasklet(unsigned long priv)
+static void recv_tasklet(struct tasklet_struct *t)
 {
 	struct sk_buff *pskb;
-	struct _adapter *padapter = (struct _adapter *)priv;
+	struct _adapter *padapter = from_tasklet(padapter, t,
+						 recvpriv.recv_tasklet);
 	struct recv_priv *precvpriv = &padapter->recvpriv;
 
 	while (NULL != (pskb = skb_dequeue(&precvpriv->rx_skb_queue))) {

drivers/staging/rtl8712/rtl871x_xmit.c

@@ -144,8 +144,7 @@ int _r8712_init_xmit_priv(struct xmit_priv *pxmitpriv,
 	INIT_WORK(&padapter->wk_filter_rx_ff0, r8712_SetFilter);
 	alloc_hwxmits(padapter);
 	init_hwxmits(pxmitpriv->hwxmits, pxmitpriv->hwxmit_entry);
-	tasklet_init(&pxmitpriv->xmit_tasklet, r8712_xmit_bh,
-		     (unsigned long)padapter);
+	tasklet_setup(&pxmitpriv->xmit_tasklet, r8712_xmit_bh);
 	return 0;
 }
 

drivers/staging/rtl8712/rtl871x_xmit.h

@@ -277,7 +277,7 @@ int r8712_pre_xmit(struct _adapter *padapter, struct xmit_frame *pxmitframe);
 int r8712_xmit_enqueue(struct _adapter *padapter,
 		       struct xmit_frame *pxmitframe);
 void r8712_xmit_direct(struct _adapter *padapter, struct xmit_frame *pxmitframe);
-void r8712_xmit_bh(unsigned long priv);
+void r8712_xmit_bh(struct tasklet_struct *t);
 
 void xmitframe_xmitbuf_attach(struct xmit_frame *pxmitframe,
 			struct xmit_buf *pxmitbuf);

drivers/staging/rtl8712/usb_ops_linux.c

@@ -308,10 +308,11 @@ void r8712_usb_read_port_cancel(struct _adapter *padapter)
 	}
 }
 
-void r8712_xmit_bh(unsigned long priv)
+void r8712_xmit_bh(struct tasklet_struct *t)
 {
 	int ret = false;
-	struct _adapter *padapter = (struct _adapter *)priv;
+	struct _adapter *padapter = from_tasklet(padapter, t,
+						 xmitpriv.xmit_tasklet);
 	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 
 	if (padapter->driver_stopped ||