dmaengine: idxd: Rename drv_enable/disable_wq to idxd_drv_enable/disable_wq, and export

Rename drv_enable_wq and drv_disable_wq to idxd_drv_enable_wq and
idxd_drv_disable_wq respectively, so that they're no longer too
generic to be exported.  This also matches existing naming within the
idxd driver.

And to allow idxd sub-drivers to enable and disable wqs, export them.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/dma/idxd/cdev.c

@@ -550,7 +550,7 @@ static int idxd_user_drv_probe(struct idxd_dev *idxd_dev)
 	}
 
 	wq->type = IDXD_WQT_USER;
-	rc = drv_enable_wq(wq);
+	rc = idxd_drv_enable_wq(wq);
 	if (rc < 0)
 		goto err;
 
@@ -565,7 +565,7 @@ static int idxd_user_drv_probe(struct idxd_dev *idxd_dev)
 	return 0;
 
 err_cdev:
-	drv_disable_wq(wq);
+	idxd_drv_disable_wq(wq);
 err:
 	destroy_workqueue(wq->wq);
 	wq->type = IDXD_WQT_NONE;
@@ -580,7 +580,7 @@ static void idxd_user_drv_remove(struct idxd_dev *idxd_dev)
 
 	mutex_lock(&wq->wq_lock);
 	idxd_wq_del_cdev(wq);
-	drv_disable_wq(wq);
+	idxd_drv_disable_wq(wq);
 	wq->type = IDXD_WQT_NONE;
 	destroy_workqueue(wq->wq);
 	wq->wq = NULL;

drivers/dma/idxd/device.c

@@ -1350,7 +1350,7 @@ int idxd_wq_request_irq(struct idxd_wq *wq)
 	return rc;
 }
 
-int drv_enable_wq(struct idxd_wq *wq)
+int idxd_drv_enable_wq(struct idxd_wq *wq)
 {
 	struct idxd_device *idxd = wq->idxd;
 	struct device *dev = &idxd->pdev->dev;
@@ -1482,8 +1482,9 @@ int drv_enable_wq(struct idxd_wq *wq)
 err:
 	return rc;
 }
+EXPORT_SYMBOL_NS_GPL(idxd_drv_enable_wq, IDXD);
 
-void drv_disable_wq(struct idxd_wq *wq)
+void idxd_drv_disable_wq(struct idxd_wq *wq)
 {
 	struct idxd_device *idxd = wq->idxd;
 	struct device *dev = &idxd->pdev->dev;
@@ -1503,6 +1504,7 @@ void drv_disable_wq(struct idxd_wq *wq)
 	wq->type = IDXD_WQT_NONE;
 	wq->client_count = 0;
 }
+EXPORT_SYMBOL_NS_GPL(idxd_drv_disable_wq, IDXD);
 
 int idxd_device_drv_probe(struct idxd_dev *idxd_dev)
 {

drivers/dma/idxd/dma.c

@@ -314,7 +314,7 @@ static int idxd_dmaengine_drv_probe(struct idxd_dev *idxd_dev)
 
 	wq->type = IDXD_WQT_KERNEL;
 
-	rc = drv_enable_wq(wq);
+	rc = idxd_drv_enable_wq(wq);
 	if (rc < 0) {
 		dev_dbg(dev, "Enable wq %d failed: %d\n", wq->id, rc);
 		rc = -ENXIO;
@@ -333,7 +333,7 @@ static int idxd_dmaengine_drv_probe(struct idxd_dev *idxd_dev)
 	return 0;
 
 err_dma:
-	drv_disable_wq(wq);
+	idxd_drv_disable_wq(wq);
 err:
 	wq->type = IDXD_WQT_NONE;
 	mutex_unlock(&wq->wq_lock);
@@ -347,7 +347,7 @@ static void idxd_dmaengine_drv_remove(struct idxd_dev *idxd_dev)
 	mutex_lock(&wq->wq_lock);
 	__idxd_wq_quiesce(wq);
 	idxd_unregister_dma_channel(wq);
-	drv_disable_wq(wq);
+	idxd_drv_disable_wq(wq);
 	mutex_unlock(&wq->wq_lock);
 }
 

drivers/dma/idxd/idxd.h

@@ -685,8 +685,8 @@ void idxd_unmask_error_interrupts(struct idxd_device *idxd);
 /* device control */
 int idxd_device_drv_probe(struct idxd_dev *idxd_dev);
 void idxd_device_drv_remove(struct idxd_dev *idxd_dev);
-int drv_enable_wq(struct idxd_wq *wq);
-void drv_disable_wq(struct idxd_wq *wq);
+int idxd_drv_enable_wq(struct idxd_wq *wq);
+void idxd_drv_disable_wq(struct idxd_wq *wq);
 int idxd_device_init_reset(struct idxd_device *idxd);
 int idxd_device_enable(struct idxd_device *idxd);
 int idxd_device_disable(struct idxd_device *idxd);