[SCSI] libsas: convert ha->state to flags
In preparation for adding new states (SAS_HA_DRAINING, SAS_HA_FROZEN),
convert ha->state into a set of flags.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/libsas/sas_init.c b/drivers/scsi/libsas/sas_init.c
index a435876..da244e6 100644
--- a/drivers/scsi/libsas/sas_init.c
+++ b/drivers/scsi/libsas/sas_init.c
@@ -112,7 +112,7 @@
else if (sas_ha->lldd_queue_size == -1)
sas_ha->lldd_queue_size = 128; /* Sanity */
- sas_ha->state = SAS_HA_REGISTERED;
+ set_bit(SAS_HA_REGISTERED, &sas_ha->state);
spin_lock_init(&sas_ha->state_lock);
error = sas_register_phys(sas_ha);
@@ -160,7 +160,7 @@
/* Set the state to unregistered to avoid further
* events to be queued */
spin_lock_irqsave(&sas_ha->state_lock, flags);
- sas_ha->state = SAS_HA_UNREGISTERED;
+ clear_bit(SAS_HA_REGISTERED, &sas_ha->state);
spin_unlock_irqrestore(&sas_ha->state_lock, flags);
scsi_flush_work(sas_ha->core.shost);
diff --git a/drivers/scsi/libsas/sas_internal.h b/drivers/scsi/libsas/sas_internal.h
index 7fe4ede..1fd84b3 100644
--- a/drivers/scsi/libsas/sas_internal.h
+++ b/drivers/scsi/libsas/sas_internal.h
@@ -100,7 +100,7 @@
unsigned long flags;
spin_lock_irqsave(&sas_ha->state_lock, flags);
- if (sas_ha->state != SAS_HA_UNREGISTERED)
+ if (test_bit(SAS_HA_REGISTERED, &sas_ha->state))
scsi_queue_work(sas_ha->core.shost, work);
spin_unlock_irqrestore(&sas_ha->state_lock, flags);
}