[PATCH v4 13/32] scsi: hisi_sas: add hisi_hba workqueue

From: John Garry
Date: Mon Nov 16 2015 - 08:34:03 EST


Signed-off-by: John Garry <john.garry@xxxxxxxxxx>
---
drivers/scsi/hisi_sas/hisi_sas.h | 1 +
drivers/scsi/hisi_sas/hisi_sas_main.c | 8 ++++++++
2 files changed, 9 insertions(+)

diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index c50384f..62bc6f3 100644
--- a/drivers/scsi/hisi_sas/hisi_sas.h
+++ b/drivers/scsi/hisi_sas/hisi_sas.h
@@ -72,6 +72,7 @@ struct hisi_hba {

int n_phy;

+ struct workqueue_struct *wq;

int slot_index_count;
unsigned long *slot_index_tags;
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index d7d9516..7f32c6b 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -150,6 +150,12 @@ static int hisi_sas_alloc(struct hisi_hba *hisi_hba, struct Scsi_Host *shost)

hisi_sas_slot_index_init(hisi_hba);

+ hisi_hba->wq = create_singlethread_workqueue(dev_name(dev));
+ if (!hisi_hba->wq) {
+ dev_err(dev, "sas_alloc: failed to create workqueue\n");
+ goto err_out;
+ }
+
return 0;
err_out:
return -ENOMEM;
@@ -207,6 +213,8 @@ static void hisi_sas_free(struct hisi_hba *hisi_hba)
hisi_hba->sata_breakpoint,
hisi_hba->sata_breakpoint_dma);

+ if (hisi_hba->wq)
+ destroy_workqueue(hisi_hba->wq);
}

static struct Scsi_Host *hisi_sas_shost_alloc(struct platform_device *pdev,
--
1.9.1

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