scsi: ibmvscsi: redo driver work thread to use enum action states

The current implemenation relies on two flags in the driver's private host
structure to signal the need for a host reset or to reenable the CRQ after
a LPAR migration. This patch does away with those flags and introduces a
single action flag and defined enums for the supported kthread work
actions. Lastly, the if/else logic is replaced with a switch statement.

Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.h b/drivers/scsi/ibmvscsi/ibmvscsi.h
index 3a7875575616..04bcbc832dc9 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.h
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.h
@@ -88,13 +88,18 @@ struct event_pool {
 	dma_addr_t iu_token;
 };
 
+enum ibmvscsi_host_action {
+	IBMVSCSI_HOST_ACTION_NONE = 0,
+	IBMVSCSI_HOST_ACTION_RESET,
+	IBMVSCSI_HOST_ACTION_REENABLE,
+};
+
 /* all driver data associated with a host adapter */
 struct ibmvscsi_host_data {
 	struct list_head host_list;
 	atomic_t request_limit;
 	int client_migrated;
-	int reset_crq;
-	int reenable_crq;
+	enum ibmvscsi_host_action action;
 	struct device *dev;
 	struct event_pool pool;
 	struct crq_queue queue;