scsi: lpfc: 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: James Smart <[e-mail]>
Cc: Dick Kennedy <[e-mail]>
Cc: "James E.J. Bottomley" <[e-mail]>
Cc: "Martin K. Petersen" <[e-mail]>
Cc: [e-mail]
Signed-off-by: Kees Cook <[e-mail]>
Reviewed-by: Martin K. Petersen <[e-mail]>

drivers/scsi/lpfc/lpfc_crtn.h

···
 void lpfc_disc_start(struct lpfc_vport *);
 void lpfc_cleanup_discovery_resources(struct lpfc_vport *);
 void lpfc_cleanup(struct lpfc_vport *);
-void lpfc_disc_timeout(unsigned long);
+void lpfc_disc_timeout(struct timer_list *);
 
 int lpfc_unregister_fcf_prep(struct lpfc_hba *);
 struct lpfc_nodelist *__lpfc_findnode_rpi(struct lpfc_vport *, uint16_t);
···
 int lpfc_els_rsp_prli_acc(struct lpfc_vport *, struct lpfc_iocbq *,
 			  struct lpfc_nodelist *);
 void lpfc_cancel_retry_delay_tmo(struct lpfc_vport *, struct lpfc_nodelist *);
-void lpfc_els_retry_delay(unsigned long);
+void lpfc_els_retry_delay(struct timer_list *);
 void lpfc_els_retry_delay_handler(struct lpfc_nodelist *);
 void lpfc_els_unsol_event(struct lpfc_hba *, struct lpfc_sli_ring *,
 			  struct lpfc_iocbq *);
···
 void lpfc_els_flush_cmd(struct lpfc_vport *);
 int lpfc_els_disc_adisc(struct lpfc_vport *);
 int lpfc_els_disc_plogi(struct lpfc_vport *);
-void lpfc_els_timeout(unsigned long);
+void lpfc_els_timeout(struct timer_list *);
 void lpfc_els_timeout_handler(struct lpfc_vport *);
 struct lpfc_iocbq *lpfc_prep_els_iocb(struct lpfc_vport *, uint8_t, uint16_t,
 				      uint8_t, struct lpfc_nodelist *,
···
 int lpfc_ns_cmd(struct lpfc_vport *, int, uint8_t, uint32_t);
 int lpfc_fdmi_cmd(struct lpfc_vport *, struct lpfc_nodelist *, int, uint32_t);
 void lpfc_fdmi_num_disc_check(struct lpfc_vport *);
-void lpfc_delayed_disc_tmo(unsigned long);
+void lpfc_delayed_disc_tmo(struct timer_list *);
 void lpfc_delayed_disc_timeout_handler(struct lpfc_vport *);
 
 int lpfc_config_port_prep(struct lpfc_hba *);
···
 void lpfc_mem_free_all(struct lpfc_hba *);
 void lpfc_stop_vport_timers(struct lpfc_vport *);
 
-void lpfc_poll_timeout(unsigned long ptr);
+void lpfc_poll_timeout(struct timer_list *t);
 void lpfc_poll_start_timer(struct lpfc_hba *);
-void lpfc_poll_eratt(unsigned long);
+void lpfc_poll_eratt(struct timer_list *);
 int
 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *,
 			struct lpfc_sli_ring *, uint32_t);
···
 lpfc_sli_abort_taskmgmt(struct lpfc_vport *, struct lpfc_sli_ring *,
 			uint16_t, uint64_t, lpfc_ctx_cmd);
 
-void lpfc_mbox_timeout(unsigned long);
+void lpfc_mbox_timeout(struct timer_list *t);
 void lpfc_mbox_timeout_handler(struct lpfc_hba *);
 
 struct lpfc_nodelist *lpfc_findnode_did(struct lpfc_vport *, uint32_t);
···
 /* Interface exported by fabric iocb scheduler */
 void lpfc_fabric_abort_nport(struct lpfc_nodelist *);
 void lpfc_fabric_abort_hba(struct lpfc_hba *);
-void lpfc_fabric_block_timeout(unsigned long);
+void lpfc_fabric_block_timeout(struct timer_list *);
 void lpfc_unblock_fabric_iocbs(struct lpfc_hba *);
 void lpfc_rampdown_queue_depth(struct lpfc_hba *);
 void lpfc_ramp_down_queue_handler(struct lpfc_hba *);

drivers/scsi/lpfc/lpfc_ct.c

···
  * the worker thread.
  **/
 void
-lpfc_delayed_disc_tmo(unsigned long ptr)
+lpfc_delayed_disc_tmo(struct timer_list *t)
 {
-	struct lpfc_vport *vport = (struct lpfc_vport *)ptr;
+	struct lpfc_vport *vport = from_timer(vport, t, delayed_disc_tmo);
 	struct lpfc_hba   *phba = vport->phba;
 	uint32_t tmo_posted;
 	unsigned long iflag;

drivers/scsi/lpfc/lpfc_els.c

···
  * to the event associated with the ndlp.
  **/
 void
-lpfc_els_retry_delay(unsigned long ptr)
+lpfc_els_retry_delay(struct timer_list *t)
 {
-	struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr;
+	struct lpfc_nodelist *ndlp = from_timer(ndlp, t, nlp_delayfunc);
 	struct lpfc_vport *vport = ndlp->vport;
 	struct lpfc_hba   *phba = vport->phba;
 	unsigned long flags;
···
  * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
  **/
 void
-lpfc_els_timeout(unsigned long ptr)
+lpfc_els_timeout(struct timer_list *t)
 {
-	struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
+	struct lpfc_vport *vport = from_timer(vport, t, els_tmofunc);
 	struct lpfc_hba   *phba = vport->phba;
 	uint32_t tmo_posted;
 	unsigned long iflag;
···
  * posted event WORKER_FABRIC_BLOCK_TMO.
  **/
 void
-lpfc_fabric_block_timeout(unsigned long ptr)
+lpfc_fabric_block_timeout(struct timer_list *t)
 {
-	struct lpfc_hba  *phba = (struct lpfc_hba *) ptr;
+	struct lpfc_hba  *phba = from_timer(phba, t, fabric_block_timer);
 	unsigned long iflags;
 	uint32_t tmo_posted;
 

drivers/scsi/lpfc/lpfc_hbadisc.c

···
 {
 	INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
 	INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
-	setup_timer(&ndlp->nlp_delayfunc, lpfc_els_retry_delay,
-			(unsigned long)ndlp);
+	timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0);
 	ndlp->nlp_DID = did;
 	ndlp->vport = vport;
 	ndlp->phba = vport->phba;
···
  */
 /*****************************************************************************/
 void
-lpfc_disc_timeout(unsigned long ptr)
+lpfc_disc_timeout(struct timer_list *t)
 {
-	struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
+	struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo);
 	struct lpfc_hba   *phba = vport->phba;
 	uint32_t tmo_posted;
 	unsigned long flags = 0;

drivers/scsi/lpfc/lpfc_init.c

···
  * be cleared by the worker thread after it has taken the event bitmap out.
  **/
 static void
-lpfc_hb_timeout(unsigned long ptr)
+lpfc_hb_timeout(struct timer_list *t)
 {
 	struct lpfc_hba *phba;
 	uint32_t tmo_posted;
 	unsigned long iflag;
 
-	phba = (struct lpfc_hba *)ptr;
+	phba = from_timer(phba, t, hb_tmofunc);
 
 	/* Check for heart beat timeout conditions */
 	spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
···
  * be cleared by the worker thread after it has taken the event bitmap out.
  **/
 static void
-lpfc_rrq_timeout(unsigned long ptr)
+lpfc_rrq_timeout(struct timer_list *t)
 {
 	struct lpfc_hba *phba;
 	unsigned long iflag;
 
-	phba = (struct lpfc_hba *)ptr;
+	phba = from_timer(phba, t, rrq_tmr);
 	spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 	if (!(phba->pport->load_flag & FC_UNLOADING))
 		phba->hba_flag |= HBA_RRQ_ACTIVE;
···
 	INIT_LIST_HEAD(&vport->rcv_buffer_list);
 	spin_lock_init(&vport->work_port_lock);
 
-	setup_timer(&vport->fc_disctmo, lpfc_disc_timeout,
-			(unsigned long)vport);
+	timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
 
-	setup_timer(&vport->els_tmofunc, lpfc_els_timeout,
-			(unsigned long)vport);
+	timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
 
-	setup_timer(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo,
-			(unsigned long)vport);
+	timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
 
 	error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
 	if (error)
···
  * worker thread context.
  **/
 static void
-lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
+lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
 {
-	struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
+	struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
 
 	/* Don't send FCF rediscovery event if timer cancelled */
 	spin_lock_irq(&phba->hbalock);
···
 	INIT_LIST_HEAD(&phba->luns);
 
 	/* MBOX heartbeat timer */
-	setup_timer(&psli->mbox_tmo, lpfc_mbox_timeout, (unsigned long)phba);
+	timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
 	/* Fabric block timer */
-	setup_timer(&phba->fabric_block_timer, lpfc_fabric_block_timeout,
-			(unsigned long)phba);
+	timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
 	/* EA polling mode timer */
-	setup_timer(&phba->eratt_poll, lpfc_poll_eratt,
-			(unsigned long)phba);
+	timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
 	/* Heartbeat timer */
-	setup_timer(&phba->hb_tmofunc, lpfc_hb_timeout, (unsigned long)phba);
+	timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
 
 	return 0;
 }
···
 	 */
 
 	/* FCP polling mode timer */
-	setup_timer(&phba->fcp_poll_timer, lpfc_poll_timeout,
-			(unsigned long)phba);
+	timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
 
 	/* Host attention work mask setup */
 	phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
···
 	 * Initialize timers used by driver
 	 */
 
-	setup_timer(&phba->rrq_tmr, lpfc_rrq_timeout, (unsigned long)phba);
+	timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
 
 	/* FCF rediscover timer */
-	setup_timer(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo,
-			(unsigned long)phba);
+	timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
 
 	/*
 	 * Control structure for handling external multi-buffer mailbox

drivers/scsi/lpfc/lpfc_scsi.c

···
  * and FCP Ring interrupt is disable.
  **/
 
-void lpfc_poll_timeout(unsigned long ptr)
+void lpfc_poll_timeout(struct timer_list *t)
 {
-	struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
+	struct lpfc_hba *phba = from_timer(phba, t, fcp_poll_timer);
 
 	if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
 		lpfc_sli_handle_fast_ring_event(phba,

drivers/scsi/lpfc/lpfc_sli.c

···
  * and wake up worker thread to process it. Otherwise, it will set up the
  * Error Attention polling timer for the next poll.
  **/
-void lpfc_poll_eratt(unsigned long ptr)
+void lpfc_poll_eratt(struct timer_list *t)
 {
 	struct lpfc_hba *phba;
 	uint32_t eratt = 0;
 	uint64_t sli_intr, cnt;
 
-	phba = (struct lpfc_hba *)ptr;
+	phba = from_timer(phba, t, eratt_poll);
 
 	/* Here we will also keep track of interrupts per sec of the hba */
 	sli_intr = phba->sli.slistat.sli_intr;
···
  * done by the worker thread function lpfc_mbox_timeout_handler.
  **/
 void
-lpfc_mbox_timeout(unsigned long ptr)
+lpfc_mbox_timeout(struct timer_list *t)
 {
-	struct lpfc_hba  *phba = (struct lpfc_hba *) ptr;
+	struct lpfc_hba  *phba = from_timer(phba, t, sli.mbox_tmo);
 	unsigned long iflag;
 	uint32_t tmo_posted;