libertas: Convert timers to use timer_setup()

In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Arvind Yadav <arvind.yadav.cs@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Johannes Berg <johannes.berg@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Andrew Zaborowski <andrew.zaborowski@intel.com>
Cc: libertas-dev@lists.infradead.org
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/marvell/libertas/if_usb.c

@@ -161,9 +161,9 @@ static void if_usb_setup_firmware(struct lbs_private *priv)
 	}
 }
 
-static void if_usb_fw_timeo(unsigned long priv)
+static void if_usb_fw_timeo(struct timer_list *t)
 {
-	struct if_usb_card *cardp = (void *)priv;
+	struct if_usb_card *cardp = from_timer(cardp, t, fw_timeout);
 
 	if (cardp->fwdnldover) {
 		lbs_deb_usb("Download complete, no event. Assuming success\n");
@@ -205,7 +205,7 @@ static int if_usb_probe(struct usb_interface *intf,
 	if (!cardp)
 		goto error;
 
-	setup_timer(&cardp->fw_timeout, if_usb_fw_timeo, (unsigned long)cardp);
+	timer_setup(&cardp->fw_timeout, if_usb_fw_timeo, 0);
 	init_waitqueue_head(&cardp->fw_wq);
 
 	cardp->udev = udev;

drivers/net/wireless/marvell/libertas/main.c

@@ -722,9 +722,9 @@ EXPORT_SYMBOL_GPL(lbs_resume);
  *
  * @data: &struct lbs_private pointer
  */
-static void lbs_cmd_timeout_handler(unsigned long data)
+static void lbs_cmd_timeout_handler(struct timer_list *t)
 {
-	struct lbs_private *priv = (struct lbs_private *)data;
+	struct lbs_private *priv = from_timer(priv, t, command_timer);
 	unsigned long flags;
 
 	spin_lock_irqsave(&priv->driver_lock, flags);
@@ -756,9 +756,9 @@ static void lbs_cmd_timeout_handler(unsigned long data)
  *
  * @data: &struct lbs_private pointer
  */
-static void lbs_tx_lockup_handler(unsigned long data)
+static void lbs_tx_lockup_handler(struct timer_list *t)
 {
-	struct lbs_private *priv = (struct lbs_private *)data;
+	struct lbs_private *priv = from_timer(priv, t, tx_lockup_timer);
 	unsigned long flags;
 
 	spin_lock_irqsave(&priv->driver_lock, flags);
@@ -779,9 +779,9 @@ static void lbs_tx_lockup_handler(unsigned long data)
  * @data:	&struct lbs_private pointer
  * returns:	N/A
  */
-static void auto_deepsleep_timer_fn(unsigned long data)
+static void auto_deepsleep_timer_fn(struct timer_list *t)
 {
-	struct lbs_private *priv = (struct lbs_private *)data;
+	struct lbs_private *priv = from_timer(priv, t, auto_deepsleep_timer);
 
 	if (priv->is_activity_detected) {
 		priv->is_activity_detected = 0;
@@ -847,12 +847,9 @@ static int lbs_init_adapter(struct lbs_private *priv)
 	init_waitqueue_head(&priv->fw_waitq);
 	mutex_init(&priv->lock);
 
-	setup_timer(&priv->command_timer, lbs_cmd_timeout_handler,
-		(unsigned long)priv);
-	setup_timer(&priv->tx_lockup_timer, lbs_tx_lockup_handler,
-		(unsigned long)priv);
-	setup_timer(&priv->auto_deepsleep_timer, auto_deepsleep_timer_fn,
-			(unsigned long)priv);
+	timer_setup(&priv->command_timer, lbs_cmd_timeout_handler, 0);
+	timer_setup(&priv->tx_lockup_timer, lbs_tx_lockup_handler, 0);
+	timer_setup(&priv->auto_deepsleep_timer, auto_deepsleep_timer_fn, 0);
 
 	INIT_LIST_HEAD(&priv->cmdfreeq);
 	INIT_LIST_HEAD(&priv->cmdpendingq);

drivers/net/wireless/marvell/libertas_tf/if_usb.c

@@ -115,9 +115,9 @@ static void if_usb_setup_firmware(struct lbtf_private *priv)
 	lbtf_deb_leave(LBTF_DEB_USB);
 }
 
-static void if_usb_fw_timeo(unsigned long priv)
+static void if_usb_fw_timeo(struct timer_list *t)
 {
-	struct if_usb_card *cardp = (void *)priv;
+	struct if_usb_card *cardp = from_timer(cardp, t, fw_timeout);
 
 	lbtf_deb_enter(LBTF_DEB_USB);
 	if (!cardp->fwdnldover) {
@@ -156,7 +156,7 @@ static int if_usb_probe(struct usb_interface *intf,
 	if (!cardp)
 		goto error;
 
-	setup_timer(&cardp->fw_timeout, if_usb_fw_timeo, (unsigned long)cardp);
+	timer_setup(&cardp->fw_timeout, if_usb_fw_timeo, 0);
 	init_waitqueue_head(&cardp->fw_wq);
 
 	cardp->udev = udev;

drivers/net/wireless/marvell/libertas_tf/main.c

@@ -165,9 +165,9 @@ static int lbtf_setup_firmware(struct lbtf_private *priv)
  *  This function handles the timeout of command sending.
  *  It will re-send the same command again.
  */
-static void command_timer_fn(unsigned long data)
+static void command_timer_fn(struct timer_list *t)
 {
-	struct lbtf_private *priv = (struct lbtf_private *)data;
+	struct lbtf_private *priv = from_timer(priv, t, command_timer);
 	unsigned long flags;
 	lbtf_deb_enter(LBTF_DEB_CMD);
 
@@ -196,8 +196,7 @@ static int lbtf_init_adapter(struct lbtf_private *priv)
 	mutex_init(&priv->lock);
 
 	priv->vif = NULL;
-	setup_timer(&priv->command_timer, command_timer_fn,
-		(unsigned long)priv);
+	timer_setup(&priv->command_timer, command_timer_fn, 0);
 
 	INIT_LIST_HEAD(&priv->cmdfreeq);
 	INIT_LIST_HEAD(&priv->cmdpendingq);