From 042ebd293b862c491e31aea17b540317a1b9af21 Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Wed, 6 Sep 2017 17:15:04 +0800 Subject: [PATCH] scsi: libsas: kill useless ha_event and do some cleanup The ha_event now has only one event HAE_RESET, and this event does nothing. Kill it and do some cleanup. This is a preparation for enhance libsas hotplug feature in the next patches. Signed-off-by: Jason Yan Signed-off-by: John Garry Reviewed-by: Johannes Thumshirn Reviewed-by: Christoph Hellwig CC: Johannes Thumshirn CC: Ewan Milne CC: Christoph Hellwig CC: Tomas Henzl CC: Dan Williams Signed-off-by: Martin K. Petersen --- drivers/scsi/aic94xx/aic94xx_hwi.c | 3 --- drivers/scsi/hisi_sas/hisi_sas_main.c | 1 - drivers/scsi/libsas/sas_dump.c | 10 ---------- drivers/scsi/libsas/sas_dump.h | 1 - drivers/scsi/libsas/sas_event.c | 20 -------------------- drivers/scsi/libsas/sas_init.c | 12 ------------ include/scsi/libsas.h | 21 --------------------- 7 files changed, 68 deletions(-) diff --git a/drivers/scsi/aic94xx/aic94xx_hwi.c b/drivers/scsi/aic94xx/aic94xx_hwi.c index f2671a8fa7e3..ec09438184a3 100644 --- a/drivers/scsi/aic94xx/aic94xx_hwi.c +++ b/drivers/scsi/aic94xx/aic94xx_hwi.c @@ -721,11 +721,8 @@ Out: */ static void asd_chip_reset(struct asd_ha_struct *asd_ha) { - struct sas_ha_struct *sas_ha = &asd_ha->sas_ha; - ASD_DPRINTK("chip reset for %s\n", pci_name(asd_ha->pcidev)); asd_chip_hardrst(asd_ha); - sas_ha->notify_ha_event(sas_ha, HAE_RESET); } /* ---------- Done List Routines ---------- */ diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index 16664f2e15fb..29d6cb39299c 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -1074,7 +1074,6 @@ static int hisi_sas_controller_reset(struct hisi_hba *hisi_hba) hisi_sas_release_tasks(hisi_hba); spin_unlock_irqrestore(&hisi_hba->lock, flags); - sas_ha->notify_ha_event(sas_ha, HAE_RESET); clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); /* Init and wait for PHYs to come up and all libsas event finished. */ diff --git a/drivers/scsi/libsas/sas_dump.c b/drivers/scsi/libsas/sas_dump.c index cd6f99c1ae7e..7e5d262e7a7d 100644 --- a/drivers/scsi/libsas/sas_dump.c +++ b/drivers/scsi/libsas/sas_dump.c @@ -24,10 +24,6 @@ #include "sas_dump.h" -static const char *sas_hae_str[] = { - [0] = "HAE_RESET", -}; - static const char *sas_porte_str[] = { [0] = "PORTE_BYTES_DMAED", [1] = "PORTE_BROADCAST_RCVD", @@ -53,12 +49,6 @@ void sas_dprint_phye(int phyid, enum phy_event pe) SAS_DPRINTK("phy%d: phy event: %s\n", phyid, sas_phye_str[pe]); } -void sas_dprint_hae(struct sas_ha_struct *sas_ha, enum ha_event he) -{ - SAS_DPRINTK("ha %s: %s event\n", dev_name(sas_ha->dev), - sas_hae_str[he]); -} - void sas_dump_port(struct asd_sas_port *port) { SAS_DPRINTK("port%d: class:0x%x\n", port->id, port->class); diff --git a/drivers/scsi/libsas/sas_dump.h b/drivers/scsi/libsas/sas_dump.h index 800e4c69093f..6aaee6b0fcdb 100644 --- a/drivers/scsi/libsas/sas_dump.h +++ b/drivers/scsi/libsas/sas_dump.h @@ -26,5 +26,4 @@ void sas_dprint_porte(int phyid, enum port_event pe); void sas_dprint_phye(int phyid, enum phy_event pe); -void sas_dprint_hae(struct sas_ha_struct *sas_ha, enum ha_event he); void sas_dump_port(struct asd_sas_port *port); diff --git a/drivers/scsi/libsas/sas_event.c b/drivers/scsi/libsas/sas_event.c index c0d0d979b76d..70c4653edd81 100644 --- a/drivers/scsi/libsas/sas_event.c +++ b/drivers/scsi/libsas/sas_event.c @@ -124,14 +124,6 @@ void sas_enable_revalidation(struct sas_ha_struct *ha) mutex_unlock(&ha->disco_mutex); } -static int notify_ha_event(struct sas_ha_struct *sas_ha, enum ha_event event) -{ - BUG_ON(event >= HA_NUM_EVENTS); - - return sas_queue_event(event, &sas_ha->pending, - &sas_ha->ha_events[event].work, sas_ha); -} - static int notify_port_event(struct asd_sas_phy *phy, enum port_event event) { struct sas_ha_struct *ha = phy->ha; @@ -154,18 +146,6 @@ int sas_notify_phy_event(struct asd_sas_phy *phy, enum phy_event event) int sas_init_events(struct sas_ha_struct *sas_ha) { - static const work_func_t sas_ha_event_fns[HA_NUM_EVENTS] = { - [HAE_RESET] = sas_hae_reset, - }; - - int i; - - for (i = 0; i < HA_NUM_EVENTS; i++) { - INIT_SAS_WORK(&sas_ha->ha_events[i].work, sas_ha_event_fns[i]); - sas_ha->ha_events[i].ha = sas_ha; - } - - sas_ha->notify_ha_event = notify_ha_event; sas_ha->notify_port_event = notify_port_event; sas_ha->notify_phy_event = sas_notify_phy_event; diff --git a/drivers/scsi/libsas/sas_init.c b/drivers/scsi/libsas/sas_init.c index 64e9cdda1c3c..d3f5b57b3ebf 100644 --- a/drivers/scsi/libsas/sas_init.c +++ b/drivers/scsi/libsas/sas_init.c @@ -106,17 +106,6 @@ void sas_hash_addr(u8 *hashed, const u8 *sas_addr) hashed[2] = r & 0xFF; } - -/* ---------- HA events ---------- */ - -void sas_hae_reset(struct work_struct *work) -{ - struct sas_ha_event *ev = to_sas_ha_event(work); - struct sas_ha_struct *ha = ev->ha; - - clear_bit(HAE_RESET, &ha->pending); -} - int sas_register_ha(struct sas_ha_struct *sas_ha) { int error = 0; @@ -154,7 +143,6 @@ int sas_register_ha(struct sas_ha_struct *sas_ha) INIT_LIST_HEAD(&sas_ha->eh_ata_q); return 0; - Undo_ports: sas_unregister_ports(sas_ha); Undo_phys: diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h index 6c0dc6155ee7..52b3e863bea8 100644 --- a/include/scsi/libsas.h +++ b/include/scsi/libsas.h @@ -60,11 +60,6 @@ enum sas_phy_type { * so when updating/adding events here, please also * update the other file too. */ -enum ha_event { - HAE_RESET = 0U, - HA_NUM_EVENTS = 1, -}; - enum port_event { PORTE_BYTES_DMAED = 0U, PORTE_BROADCAST_RCVD = 1, @@ -362,18 +357,6 @@ struct scsi_core { }; -struct sas_ha_event { - struct sas_work work; - struct sas_ha_struct *ha; -}; - -static inline struct sas_ha_event *to_sas_ha_event(struct work_struct *work) -{ - struct sas_ha_event *ev = container_of(work, typeof(*ev), work.work); - - return ev; -} - enum sas_ha_state { SAS_HA_REGISTERED, SAS_HA_DRAINING, @@ -383,9 +366,6 @@ enum sas_ha_state { struct sas_ha_struct { /* private: */ - struct sas_ha_event ha_events[HA_NUM_EVENTS]; - unsigned long pending; - struct list_head defer_q; /* work queued while draining */ struct mutex drain_mutex; unsigned long state; @@ -415,7 +395,6 @@ struct sas_ha_struct { * their siblings when forming wide ports */ /* LLDD calls these to notify the class of an event. */ - int (*notify_ha_event)(struct sas_ha_struct *, enum ha_event); int (*notify_port_event)(struct asd_sas_phy *, enum port_event); int (*notify_phy_event)(struct asd_sas_phy *, enum phy_event); -- 2.30.2