treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts

With all callbacks converted, and the timer callback prototype
switched over, the TIMER_FUNC_TYPE cast is no longer needed,
so remove it. Conversion was done with the following scripts:

perl -pi -e 's|\(TIMER_FUNC_TYPE\)||g' \
$(git grep TIMER_FUNC_TYPE | cut -d: -f1 | sort -u)

perl -pi -e 's|\(TIMER_DATA_TYPE\)||g' \
$(git grep TIMER_DATA_TYPE | cut -d: -f1 | sort -u)

The now unused macros are also dropped from include/linux/timer.h.

Signed-off-by: Kees Cook <[e-mail]>

drivers/base/power/wakeup.c

···
 	 * Use timer struct to check if the given source is initialized
 	 * by wakeup_source_add.
 	 */
-	return ws->timer.function != (TIMER_FUNC_TYPE)pm_wakeup_timer_fn;
+	return ws->timer.function != pm_wakeup_timer_fn;
 }
 
 /*

drivers/block/aoe/aoecmd.c

···
 
 	d->rttavg = RTTAVG_INIT;
 	d->rttdev = RTTDEV_INIT;
-	d->timer.function = (TIMER_FUNC_TYPE)rexmit_timer;
+	d->timer.function = rexmit_timer;
 
 	skb = skb_clone(skb, GFP_ATOMIC);
 	if (skb) {

drivers/block/swim3.c

···
 	if (fs->timeout_pending)
 		del_timer(&fs->timeout);
 	fs->timeout.expires = jiffies + nticks;
-	fs->timeout.function = (TIMER_FUNC_TYPE)proc;
+	fs->timeout.function = proc;
 	add_timer(&fs->timeout);
 	fs->timeout_pending = 1;
 }

drivers/infiniband/hw/nes/nes_verbs.c

···
 	if (!nesvnic->event_timer.function) {
 		ib_dispatch_event(&event);
 		nesvnic->last_dispatched_event = event.event;
-		nesvnic->event_timer.function = (TIMER_FUNC_TYPE)nes_handle_delayed_event;
+		nesvnic->event_timer.function = nes_handle_delayed_event;
 		nesvnic->event_timer.expires = jiffies + NES_EVENT_DELAY;
 		add_timer(&nesvnic->event_timer);
 	} else {

drivers/input/input.c

···
  */
 void input_enable_softrepeat(struct input_dev *dev, int delay, int period)
 {
-	dev->timer.function = (TIMER_FUNC_TYPE)input_repeat_key;
+	dev->timer.function = input_repeat_key;
 	dev->rep[REP_DELAY] = delay;
 	dev->rep[REP_PERIOD] = period;
 }

drivers/media/common/saa7146/saa7146_vbi.c

···
 			    sizeof(struct saa7146_buf),
 			    file, &dev->v4l2_lock);
 
-	vv->vbi_read_timeout.function = (TIMER_FUNC_TYPE)vbi_read_timeout;
+	vv->vbi_read_timeout.function = vbi_read_timeout;
 	vv->vbi_read_timeout_file = file;
 
 	/* initialize the brs */

drivers/net/ethernet/ti/tlan.c

···
 			spin_unlock_irqrestore(&priv->lock, flags);
 		return;
 	}
-	priv->timer.function = (TIMER_FUNC_TYPE)tlan_timer;
+	priv->timer.function = tlan_timer;
 	if (!in_irq())
 		spin_unlock_irqrestore(&priv->lock, flags);
 
···
 		tlan_dio_write8(dev->base_addr,
 				TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT);
 		if (priv->timer.function == NULL) {
-			priv->timer.function = (TIMER_FUNC_TYPE)tlan_timer;
+			priv->timer.function = tlan_timer;
 			priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
 			priv->timer_set_at = jiffies;
 			priv->timer_type = TLAN_TIMER_ACTIVITY;
···
 		tlan_dio_write8(dev->base_addr,
 				TLAN_LED_REG, TLAN_LED_LINK | TLAN_LED_ACT);
 		if (priv->timer.function == NULL)  {
-			priv->timer.function = (TIMER_FUNC_TYPE)tlan_timer;
+			priv->timer.function = tlan_timer;
 			priv->timer.expires = jiffies + TLAN_TIMER_ACT_DELAY;
 			priv->timer_set_at = jiffies;
 			priv->timer_type = TLAN_TIMER_ACTIVITY;

drivers/net/hamradio/scc.c

···
 	} else 
 	if (when != TIMER_OFF)
 	{
-		scc->tx_t.function = (TIMER_FUNC_TYPE)handler;
+		scc->tx_t.function = handler;
 		scc->tx_t.expires = jiffies + (when*HZ)/100;
 		add_timer(&scc->tx_t);
 	}
···
 	
 	if (scc->kiss.maxdefer != 0 && scc->kiss.maxdefer != TIMER_OFF)
 	{
-		scc->tx_wdog.function = (TIMER_FUNC_TYPE)t_busy;
+		scc->tx_wdog.function = t_busy;
 		scc->tx_wdog.expires = jiffies + HZ*scc->kiss.maxdefer;
 		add_timer(&scc->tx_wdog);
 	}
···
 	
 	if (scc->kiss.maxkeyup != 0 && scc->kiss.maxkeyup != TIMER_OFF)
 	{
-		scc->tx_wdog.function = (TIMER_FUNC_TYPE)t_maxkeyup;
+		scc->tx_wdog.function = t_maxkeyup;
 		scc->tx_wdog.expires = jiffies + HZ*scc->kiss.maxkeyup;
 		add_timer(&scc->tx_wdog);
 	}
···
 
 	del_timer(&scc->tx_wdog);
 
-	scc->tx_wdog.function = (TIMER_FUNC_TYPE)scc_stop_calibrate;
+	scc->tx_wdog.function = scc_stop_calibrate;
 	scc->tx_wdog.expires = jiffies + HZ*duration;
 	add_timer(&scc->tx_wdog);
 

drivers/net/wireless/quantenna/qtnfmac/cfg80211.c

···
 		return -EFAULT;
 	}
 
-	mac->scan_timeout.function = (TIMER_FUNC_TYPE)qtnf_scan_timeout;
+	mac->scan_timeout.function = qtnf_scan_timeout;
 	mod_timer(&mac->scan_timeout,
 		  jiffies + QTNF_SCAN_TIMEOUT_SEC * HZ);
 

drivers/net/wireless/ray_cs.c

···
 	local->card_status = CARD_DL_PARAM;
 	/* Start kernel timer to wait for dl startup to complete. */
 	local->timer.expires = jiffies + HZ / 2;
-	local->timer.function = (TIMER_FUNC_TYPE)verify_dl_startup;
+	local->timer.function = verify_dl_startup;
 	add_timer(&local->timer);
 	dev_dbg(&link->dev,
 	      "ray_cs dl_startup_params started timer for verify_dl_startup\n");
···
 					dev_dbg(&link->dev,
 					      "ray_cs interrupt network \"%s\" start failed\n",
 					      memtmp);
-					local->timer.function = (TIMER_FUNC_TYPE)start_net;
+					local->timer.function = start_net;
 				} else {
 					dev_dbg(&link->dev,
 					      "ray_cs interrupt network \"%s\" join failed\n",
 					      memtmp);
-					local->timer.function = (TIMER_FUNC_TYPE)join_net;
+					local->timer.function = join_net;
 				}
 				add_timer(&local->timer);
 			}
···
 
 	del_timer(&local->timer);
 	if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) {
-		local->timer.function = (TIMER_FUNC_TYPE)join_net;
+		local->timer.function = join_net;
 	} else {
-		local->timer.function = (TIMER_FUNC_TYPE)authenticate_timeout;
+		local->timer.function = authenticate_timeout;
 	}
 	local->timer.expires = jiffies + HZ * 2;
 	add_timer(&local->timer);
···
 
 		del_timer(&local->timer);
 		local->timer.expires = jiffies + HZ * 2;
-		local->timer.function = (TIMER_FUNC_TYPE)join_net;
+		local->timer.function = join_net;
 		add_timer(&local->timer);
 		local->card_status = CARD_ASSOC_FAILED;
 		return;

drivers/s390/char/sclp.c

···
 __sclp_set_request_timer(unsigned long time, void (*cb)(struct timer_list *))
 {
 	del_timer(&sclp_request_timer);
-	sclp_request_timer.function = (TIMER_FUNC_TYPE)cb;
+	sclp_request_timer.function = cb;
 	sclp_request_timer.expires = jiffies + time;
 	add_timer(&sclp_request_timer);
 }
···
 		if (timer_pending(&sclp_request_timer) &&
 		    get_tod_clock_fast() > timeout &&
 		    del_timer(&sclp_request_timer))
-			sclp_request_timer.function((TIMER_DATA_TYPE)&sclp_request_timer);
+			sclp_request_timer.function(&sclp_request_timer);
 		cpu_relax();
 	}
 	local_irq_disable();

drivers/s390/scsi/zfcp_fsf.c

···
 static void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req,
 				 unsigned long timeout)
 {
-	fsf_req->timer.function = (TIMER_FUNC_TYPE)zfcp_fsf_request_timeout_handler;
+	fsf_req->timer.function = zfcp_fsf_request_timeout_handler;
 	fsf_req->timer.expires = jiffies + timeout;
 	add_timer(&fsf_req->timer);
 }
···
 static void zfcp_fsf_start_erp_timer(struct zfcp_fsf_req *fsf_req)
 {
 	BUG_ON(!fsf_req->erp_action);
-	fsf_req->timer.function = (TIMER_FUNC_TYPE)zfcp_erp_timeout_handler;
+	fsf_req->timer.function = zfcp_erp_timeout_handler;
 	fsf_req->timer.expires = jiffies + 30 * HZ;
 	add_timer(&fsf_req->timer);
 }

drivers/scsi/aic94xx/aic94xx_hwi.c

···
 	struct asd_ascb *ascb;
 	list_for_each_entry(ascb, list, list) {
 		if (!ascb->uldd_timer) {
-			ascb->timer.function = (TIMER_FUNC_TYPE)asd_ascb_timedout;
+			ascb->timer.function = asd_ascb_timedout;
 			ascb->timer.expires = jiffies + AIC94XX_SCB_TIMEOUT;
 			add_timer(&ascb->timer);
 		}

drivers/scsi/aic94xx/aic94xx_tmf.c

···
 	ascb->tasklet_complete = tasklet_complete;
 	ascb->uldd_timer = 1;
 
-	ascb->timer.function = (TIMER_FUNC_TYPE)timed_out;
+	ascb->timer.function = timed_out;
 	ascb->timer.expires = jiffies + AIC94XX_SCB_TIMEOUT;
 
 	add_timer(&ascb->timer);

drivers/scsi/be2iscsi/be_main.c

···
 		if (!test_bit(BEISCSI_HBA_UER_SUPP, &phba->state))
 			return;
 		/* modify this timer to check TPE */
-		phba->hw_check.function = (TIMER_FUNC_TYPE)beiscsi_hw_tpe_check;
+		phba->hw_check.function = beiscsi_hw_tpe_check;
 	}
 
 	mod_timer(&phba->hw_check,
···
 	 * Timer function gets modified for TPE detection.
 	 * Always reinit to do health check first.
 	 */
-	phba->hw_check.function = (TIMER_FUNC_TYPE)beiscsi_hw_health_check;
+	phba->hw_check.function = beiscsi_hw_health_check;
 	mod_timer(&phba->hw_check,
 		  jiffies + msecs_to_jiffies(BEISCSI_UE_DETECT_INTERVAL));
 	return 0;

drivers/scsi/cxgbi/cxgb3i/cxgb3i.c

···
 	cxgbi_sock_get(csk);
 	spin_lock_bh(&csk->lock);
 	if (rpl->status == CPL_ERR_CONN_EXIST &&
-	    csk->retry_timer.function != (TIMER_FUNC_TYPE)act_open_retry_timer) {
-		csk->retry_timer.function = (TIMER_FUNC_TYPE)act_open_retry_timer;
+	    csk->retry_timer.function != act_open_retry_timer) {
+		csk->retry_timer.function = act_open_retry_timer;
 		mod_timer(&csk->retry_timer, jiffies + HZ / 2);
 	} else
 		cxgbi_sock_fail_act_open(csk,

drivers/scsi/cxgbi/cxgb4i/cxgb4i.c

···
 	spin_lock_bh(&csk->lock);
 
 	if (status == CPL_ERR_CONN_EXIST &&
-	    csk->retry_timer.function != (TIMER_FUNC_TYPE)csk_act_open_retry_timer) {
-		csk->retry_timer.function = (TIMER_FUNC_TYPE)csk_act_open_retry_timer;
+	    csk->retry_timer.function != csk_act_open_retry_timer) {
+		csk->retry_timer.function = csk_act_open_retry_timer;
 		mod_timer(&csk->retry_timer, jiffies + HZ / 2);
 	} else
 		cxgbi_sock_fail_act_open(csk,

drivers/scsi/hisi_sas/hisi_sas_main.c

···
 		}
 		task->task_done = hisi_sas_task_done;
 
-		task->slow_task->timer.function = (TIMER_FUNC_TYPE)hisi_sas_tmf_timedout;
+		task->slow_task->timer.function = hisi_sas_tmf_timedout;
 		task->slow_task->timer.expires = jiffies + TASK_TIMEOUT*HZ;
 		add_timer(&task->slow_task->timer);
 
···
 	task->dev = device;
 	task->task_proto = device->tproto;
 	task->task_done = hisi_sas_task_done;
-	task->slow_task->timer.function = (TIMER_FUNC_TYPE)hisi_sas_tmf_timedout;
+	task->slow_task->timer.function = hisi_sas_tmf_timedout;
 	task->slow_task->timer.expires = jiffies + msecs_to_jiffies(110);
 	add_timer(&task->slow_task->timer);
 

drivers/scsi/hisi_sas/hisi_sas_v2_hw.c

···
 		}
 	}
 
-	hisi_hba->timer.function = (TIMER_FUNC_TYPE)link_timeout_disable_link;
+	hisi_hba->timer.function = link_timeout_disable_link;
 	mod_timer(&hisi_hba->timer, jiffies + msecs_to_jiffies(900));
 }
 
···
 		}
 	}
 
-	hisi_hba->timer.function = (TIMER_FUNC_TYPE)link_timeout_enable_link;
+	hisi_hba->timer.function = link_timeout_enable_link;
 	mod_timer(&hisi_hba->timer, jiffies + msecs_to_jiffies(100));
 }
 
 static void set_link_timer_quirk(struct hisi_hba *hisi_hba)
 {
-	hisi_hba->timer.function = (TIMER_FUNC_TYPE)link_timeout_disable_link;
+	hisi_hba->timer.function = link_timeout_disable_link;
 	hisi_hba->timer.expires = jiffies + msecs_to_jiffies(1000);
 	add_timer(&hisi_hba->timer);
 }

drivers/scsi/ipr.c

···
 	ipr_cmd->done = done;
 
 	ipr_cmd->timer.expires = jiffies + timeout;
-	ipr_cmd->timer.function = (TIMER_FUNC_TYPE)timeout_func;
+	ipr_cmd->timer.function = timeout_func;
 
 	add_timer(&ipr_cmd->timer);
 
···
 	ipr_cmd->done = ipr_reset_ioa_job;
 
 	ipr_cmd->timer.expires = jiffies + timeout;
-	ipr_cmd->timer.function = (TIMER_FUNC_TYPE)ipr_reset_timer_done;
+	ipr_cmd->timer.function = ipr_reset_timer_done;
 	add_timer(&ipr_cmd->timer);
 }
 
···
 	}
 
 	ipr_cmd->timer.expires = jiffies + stage_time * HZ;
-	ipr_cmd->timer.function = (TIMER_FUNC_TYPE)ipr_oper_timeout;
+	ipr_cmd->timer.function = ipr_oper_timeout;
 	ipr_cmd->done = ipr_reset_ioa_job;
 	add_timer(&ipr_cmd->timer);
 
···
 	}
 
 	ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
-	ipr_cmd->timer.function = (TIMER_FUNC_TYPE)ipr_oper_timeout;
+	ipr_cmd->timer.function = ipr_oper_timeout;
 	ipr_cmd->done = ipr_reset_ioa_job;
 	add_timer(&ipr_cmd->timer);
 	list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);

drivers/scsi/libfc/fc_fcp.c

···
 	fsp->seq_ptr = seq;
 	fc_fcp_pkt_hold(fsp);	/* hold for fc_fcp_pkt_destroy */
 
-	fsp->timer.function = (TIMER_FUNC_TYPE)fc_fcp_timeout;
+	fsp->timer.function = fc_fcp_timeout;
 	if (rpriv->flags & FC_RP_FLAGS_REC_SUPPORTED)
 		fc_fcp_timer_set(fsp, get_fsp_rec_tov(fsp));
 
···
 			return;
 		if (fc_fcp_lock_pkt(fsp))
 			return;
-		fsp->timer.function = (TIMER_FUNC_TYPE)fc_lun_reset_send;
+		fsp->timer.function = fc_lun_reset_send;
 		fc_fcp_timer_set(fsp, get_fsp_rec_tov(fsp));
 		fc_fcp_unlock_pkt(fsp);
 	}
···
 	if (fsp->lp->qfull) {
 		FC_FCP_DBG(fsp, "fcp timeout, resetting timer delay %d\n",
 			   fsp->timer_delay);
-		fsp->timer.function = (TIMER_FUNC_TYPE)fc_fcp_timeout;
+		fsp->timer.function = fc_fcp_timeout;
 		fc_fcp_timer_set(fsp, fsp->timer_delay);
 		goto unlock;
 	}

drivers/scsi/libsas/sas_expander.c

···
 
 		task->task_done = smp_task_done;
 
-		task->slow_task->timer.function = (TIMER_FUNC_TYPE)smp_task_timedout;
+		task->slow_task->timer.function = smp_task_timedout;
 		task->slow_task->timer.expires = jiffies + SMP_TIMEOUT*HZ;
 		add_timer(&task->slow_task->timer);
 

drivers/scsi/libsas/sas_scsi_host.c

···
 			return;
 		if (!del_timer(&slow->timer))
 			return;
-		slow->timer.function((TIMER_DATA_TYPE)&slow->timer);
+		slow->timer.function(&slow->timer);
 		return;
 	}
 

drivers/scsi/mvsas/mv_sas.c

···
 		memcpy(&task->ssp_task, parameter, para_len);
 		task->task_done = mvs_task_done;
 
-		task->slow_task->timer.function = (TIMER_FUNC_TYPE)mvs_tmf_timedout;
+		task->slow_task->timer.function = mvs_tmf_timedout;
 		task->slow_task->timer.expires = jiffies + MVS_TASK_TIMEOUT*HZ;
 		add_timer(&task->slow_task->timer);
 
···
 		MVS_CHIP_DISP->write_port_irq_mask(mvi, phy_no,
 					tmp | PHYEV_SIG_FIS);
 		if (phy->timer.function == NULL) {
-			phy->timer.function = (TIMER_FUNC_TYPE)mvs_sig_time_out;
+			phy->timer.function = mvs_sig_time_out;
 			phy->timer.expires = jiffies + 5*HZ;
 			add_timer(&phy->timer);
 		}

drivers/scsi/pm8001/pm8001_sas.c

···
 		task->task_proto = dev->tproto;
 		memcpy(&task->ssp_task, parameter, para_len);
 		task->task_done = pm8001_task_done;
-		task->slow_task->timer.function = (TIMER_FUNC_TYPE)pm8001_tmf_timedout;
+		task->slow_task->timer.function = pm8001_tmf_timedout;
 		task->slow_task->timer.expires = jiffies + PM8001_TASK_TIMEOUT*HZ;
 		add_timer(&task->slow_task->timer);
 
···
 		task->dev = dev;
 		task->task_proto = dev->tproto;
 		task->task_done = pm8001_task_done;
-		task->slow_task->timer.function = (TIMER_FUNC_TYPE)pm8001_tmf_timedout;
+		task->slow_task->timer.function = pm8001_tmf_timedout;
 		task->slow_task->timer.expires = jiffies + PM8001_TASK_TIMEOUT * HZ;
 		add_timer(&task->slow_task->timer);
 

drivers/scsi/pmcraid.c

···
 
 	cmd->time_left = msecs_to_jiffies(PMCRAID_BIST_TIMEOUT);
 	cmd->timer.expires = jiffies + msecs_to_jiffies(PMCRAID_BIST_TIMEOUT);
-	cmd->timer.function = (TIMER_FUNC_TYPE)pmcraid_bist_done;
+	cmd->timer.function = pmcraid_bist_done;
 	add_timer(&cmd->timer);
 }
 
···
 		/* restart timer if some more time is available to wait */
 		cmd->time_left -= PMCRAID_CHECK_FOR_RESET_TIMEOUT;
 		cmd->timer.expires = jiffies + PMCRAID_CHECK_FOR_RESET_TIMEOUT;
-		cmd->timer.function = (TIMER_FUNC_TYPE)pmcraid_reset_alert_done;
+		cmd->timer.function = pmcraid_reset_alert_done;
 		add_timer(&cmd->timer);
 	}
 }
···
 		 */
 		cmd->time_left = PMCRAID_RESET_TIMEOUT;
 		cmd->timer.expires = jiffies + PMCRAID_CHECK_FOR_RESET_TIMEOUT;
-		cmd->timer.function = (TIMER_FUNC_TYPE)pmcraid_reset_alert_done;
+		cmd->timer.function = pmcraid_reset_alert_done;
 		add_timer(&cmd->timer);
 
 		iowrite32(DOORBELL_IOA_RESET_ALERT,
···
 	if (timeout_func) {
 		/* setup timeout handler */
 		cmd->timer.expires = jiffies + timeout;
-		cmd->timer.function = (TIMER_FUNC_TYPE)timeout_func;
+		cmd->timer.function = timeout_func;
 		add_timer(&cmd->timer);
 	}
 
···
 	cmd->cmd_done = pmcraid_ioa_reset;
 	cmd->timer.expires = jiffies +
 			     msecs_to_jiffies(PMCRAID_TRANSOP_TIMEOUT);
-	cmd->timer.function = (TIMER_FUNC_TYPE)pmcraid_timeout_handler;
+	cmd->timer.function = pmcraid_timeout_handler;
 
 	if (!timer_pending(&cmd->timer))
 		add_timer(&cmd->timer);

drivers/staging/irda/include/net/irda/timer.h

···
 static inline void irda_start_timer(struct timer_list *ptimer, int timeout,
 				    void (*callback)(struct timer_list *))
 {
-	ptimer->function = (TIMER_FUNC_TYPE) callback;
+	ptimer->function =  callback;
 
 	/* Set new value for timer (update or add timer).
 	 * We use mod_timer() because it's more efficient and also

drivers/tty/serial/8250/8250_core.c

···
 	if (up->bugs & UART_BUG_THRE) {
 		pr_debug("ttyS%d - using backup timer\n", serial_index(port));
 
-		up->timer.function = (TIMER_FUNC_TYPE)serial8250_backup_timeout;
+		up->timer.function = serial8250_backup_timeout;
 		mod_timer(&up->timer, jiffies +
 			  uart_poll_timeout(port) + HZ / 5);
 	}
···
 	struct uart_port *port = &up->port;
 
 	del_timer_sync(&up->timer);
-	up->timer.function = (TIMER_FUNC_TYPE)serial8250_timeout;
+	up->timer.function = serial8250_timeout;
 	if (port->irq)
 		serial_unlink_irq_chain(up);
 }

include/linux/kthread.h

···
 
 #define KTHREAD_DELAYED_WORK_INIT(dwork, fn) {				\
 	.work = KTHREAD_WORK_INIT((dwork).work, (fn)),			\
-	.timer = __TIMER_INITIALIZER((TIMER_FUNC_TYPE)kthread_delayed_work_timer_fn,\
+	.timer = __TIMER_INITIALIZER(kthread_delayed_work_timer_fn,\
 				     TIMER_IRQSAFE),			\
 	}
 

include/linux/timer.h

···
 
 #define TIMER_TRACE_FLAGMASK	(TIMER_MIGRATING | TIMER_DEFERRABLE | TIMER_PINNED | TIMER_IRQSAFE)
 
-#define TIMER_DATA_TYPE		struct timer_list *
-#define TIMER_FUNC_TYPE		void (*)(TIMER_DATA_TYPE)
-
 #define __TIMER_INITIALIZER(_function, _flags) {		\
 		.entry = { .next = TIMER_ENTRY_STATIC },	\
 		.function = (_function),			\
···
 
 #define DEFINE_TIMER(_name, _function)				\
 	struct timer_list _name =				\
-		__TIMER_INITIALIZER((TIMER_FUNC_TYPE)_function, 0)
+		__TIMER_INITIALIZER(_function, 0)
 
 /*
  * LOCKDEP and DEBUG timer interfaces.

include/linux/workqueue.h

···
 
 #define __DELAYED_WORK_INITIALIZER(n, f, tflags) {			\
 	.work = __WORK_INITIALIZER((n).work, (f)),			\
-	.timer = __TIMER_INITIALIZER((TIMER_FUNC_TYPE)delayed_work_timer_fn,\
+	.timer = __TIMER_INITIALIZER(delayed_work_timer_fn,\
 				     (tflags) | TIMER_IRQSAFE),		\
 	}
 

kernel/kthread.c

···
 	struct timer_list *timer = &dwork->timer;
 	struct kthread_work *work = &dwork->work;
 
-	WARN_ON_ONCE(timer->function != (TIMER_FUNC_TYPE)kthread_delayed_work_timer_fn);
+	WARN_ON_ONCE(timer->function != kthread_delayed_work_timer_fn);
 
 	/*
 	 * If @delay is 0, queue @dwork->work immediately.  This is for

kernel/workqueue.c

···
 	struct work_struct *work = &dwork->work;
 
 	WARN_ON_ONCE(!wq);
-	WARN_ON_ONCE(timer->function != (TIMER_FUNC_TYPE)delayed_work_timer_fn);
+	WARN_ON_ONCE(timer->function != delayed_work_timer_fn);
 	WARN_ON_ONCE(timer_pending(timer));
 	WARN_ON_ONCE(!list_empty(&work->entry));
 

net/atm/lec.c

···
 		else
 			send_to_lecd(priv, l_arp_xmt, mac_to_find, NULL, NULL);
 		entry->timer.expires = jiffies + (1 * HZ);
-		entry->timer.function = (TIMER_FUNC_TYPE)lec_arp_expire_arp;
+		entry->timer.function = lec_arp_expire_arp;
 		add_timer(&entry->timer);
 		found = priv->mcast_vcc;
 	}
···
 		entry->old_recv_push = old_push;
 		entry->status = ESI_UNKNOWN;
 		entry->timer.expires = jiffies + priv->vcc_timeout_period;
-		entry->timer.function = (TIMER_FUNC_TYPE)lec_arp_expire_vcc;
+		entry->timer.function = lec_arp_expire_vcc;
 		hlist_add_head(&entry->next, &priv->lec_no_forward);
 		add_timer(&entry->timer);
 		dump_arp_table(priv);
···
 	entry->status = ESI_UNKNOWN;
 	hlist_add_head(&entry->next, &priv->lec_arp_empty_ones);
 	entry->timer.expires = jiffies + priv->vcc_timeout_period;
-	entry->timer.function = (TIMER_FUNC_TYPE)lec_arp_expire_vcc;
+	entry->timer.function = lec_arp_expire_vcc;
 	add_timer(&entry->timer);
 	pr_debug("After vcc was added\n");
 	dump_arp_table(priv);

net/can/proc.c

···
 
 	seq_putc(m, '\n');
 
-	if (net->can.can_stattimer.function == (TIMER_FUNC_TYPE)can_stat_update) {
+	if (net->can.can_stattimer.function == can_stat_update) {
 		seq_printf(m, " %8ld %% total match ratio (RXMR)\n",
 				can_stats->total_rx_match_ratio);
 
···
 
 	user_reset = 1;
 
-	if (net->can.can_stattimer.function == (TIMER_FUNC_TYPE)can_stat_update) {
+	if (net->can.can_stattimer.function == can_stat_update) {
 		seq_printf(m, "Scheduled statistic reset #%ld.\n",
 				can_pstats->stats_reset + 1);
 	} else {

net/lapb/lapb_timer.c

···
 {
 	del_timer(&lapb->t1timer);
 
-	lapb->t1timer.function = (TIMER_FUNC_TYPE)lapb_t1timer_expiry;
+	lapb->t1timer.function = lapb_t1timer_expiry;
 	lapb->t1timer.expires  = jiffies + lapb->t1;
 
 	add_timer(&lapb->t1timer);
···
 {
 	del_timer(&lapb->t2timer);
 
-	lapb->t2timer.function = (TIMER_FUNC_TYPE)lapb_t2timer_expiry;
+	lapb->t2timer.function = lapb_t2timer_expiry;
 	lapb->t2timer.expires  = jiffies + lapb->t2;
 
 	add_timer(&lapb->t2timer);

net/netrom/af_netrom.c

···
 
 	if (sk_has_allocations(sk)) {
 		/* Defer: outstanding buffers */
-		sk->sk_timer.function = (TIMER_FUNC_TYPE)nr_destroy_timer;
+		sk->sk_timer.function = nr_destroy_timer;
 		sk->sk_timer.expires  = jiffies + 2 * HZ;
 		add_timer(&sk->sk_timer);
 	} else

net/netrom/nr_timer.c

···
 	timer_setup(&nr->idletimer, nr_idletimer_expiry, 0);
 
 	/* initialized by sock_init_data */
-	sk->sk_timer.function = (TIMER_FUNC_TYPE)nr_heartbeat_expiry;
+	sk->sk_timer.function = nr_heartbeat_expiry;
 }
 
 void nr_start_t1timer(struct sock *sk)

net/rose/rose_link.c

···
 {
 	del_timer(&neigh->ftimer);
 
-	neigh->ftimer.function = (TIMER_FUNC_TYPE)rose_ftimer_expiry;
+	neigh->ftimer.function = rose_ftimer_expiry;
 	neigh->ftimer.expires  =
 		jiffies + msecs_to_jiffies(sysctl_rose_link_fail_timeout);
 
···
 {
 	del_timer(&neigh->t0timer);
 
-	neigh->t0timer.function = (TIMER_FUNC_TYPE)rose_t0timer_expiry;
+	neigh->t0timer.function = rose_t0timer_expiry;
 	neigh->t0timer.expires  =
 		jiffies + msecs_to_jiffies(sysctl_rose_restart_request_timeout);
 

net/rose/rose_timer.c

···
 {
 	del_timer(&sk->sk_timer);
 
-	sk->sk_timer.function = (TIMER_FUNC_TYPE)rose_heartbeat_expiry;
+	sk->sk_timer.function = rose_heartbeat_expiry;
 	sk->sk_timer.expires  = jiffies + 5 * HZ;
 
 	add_timer(&sk->sk_timer);
···
 
 	del_timer(&rose->timer);
 
-	rose->timer.function = (TIMER_FUNC_TYPE)rose_timer_expiry;
+	rose->timer.function = rose_timer_expiry;
 	rose->timer.expires  = jiffies + rose->t1;
 
 	add_timer(&rose->timer);
···
 
 	del_timer(&rose->timer);
 
-	rose->timer.function = (TIMER_FUNC_TYPE)rose_timer_expiry;
+	rose->timer.function = rose_timer_expiry;
 	rose->timer.expires  = jiffies + rose->t2;
 
 	add_timer(&rose->timer);
···
 
 	del_timer(&rose->timer);
 
-	rose->timer.function = (TIMER_FUNC_TYPE)rose_timer_expiry;
+	rose->timer.function = rose_timer_expiry;
 	rose->timer.expires  = jiffies + rose->t3;
 
 	add_timer(&rose->timer);
···
 
 	del_timer(&rose->timer);
 
-	rose->timer.function = (TIMER_FUNC_TYPE)rose_timer_expiry;
+	rose->timer.function = rose_timer_expiry;
 	rose->timer.expires  = jiffies + rose->hb;
 
 	add_timer(&rose->timer);
···
 	del_timer(&rose->idletimer);
 
 	if (rose->idle > 0) {
-		rose->idletimer.function = (TIMER_FUNC_TYPE)rose_idletimer_expiry;
+		rose->idletimer.function = rose_idletimer_expiry;
 		rose->idletimer.expires  = jiffies + rose->idle;
 
 		add_timer(&rose->idletimer);

net/sunrpc/svc_xprt.c

···
 	serv->sv_tmpcnt++;
 	if (serv->sv_temptimer.function == NULL) {
 		/* setup timer to age temp transports */
-		serv->sv_temptimer.function = (TIMER_FUNC_TYPE)svc_age_temp_xprts;
+		serv->sv_temptimer.function = svc_age_temp_xprts;
 		mod_timer(&serv->sv_temptimer,
 			  jiffies + svc_conn_age_period * HZ);
 	}

net/x25/af_x25.c

···
 	if (sk_has_allocations(sk)) {
 		/* Defer: outstanding buffers */
 		sk->sk_timer.expires  = jiffies + 10 * HZ;
-		sk->sk_timer.function = (TIMER_FUNC_TYPE)x25_destroy_timer;
+		sk->sk_timer.function = x25_destroy_timer;
 		add_timer(&sk->sk_timer);
 	} else {
 		/* drop last reference so sock_put will free */

net/x25/x25_timer.c

···
 	timer_setup(&x25->timer, x25_timer_expiry, 0);
 
 	/* initialized by sock_init_data */
-	sk->sk_timer.function = (TIMER_FUNC_TYPE)x25_heartbeat_expiry;
+	sk->sk_timer.function = x25_heartbeat_expiry;
 }
 
 void x25_start_heartbeat(struct sock *sk)

sound/usb/line6/driver.c

···
 void line6_start_timer(struct timer_list *timer, unsigned long msecs,
 		       void (*function)(struct timer_list *t))
 {
-	timer->function = (TIMER_FUNC_TYPE)function;
+	timer->function = function;
 	mod_timer(timer, jiffies + msecs_to_jiffies(msecs));
 }
 EXPORT_SYMBOL_GPL(line6_start_timer);