virtio: wrap find_vqs

We are going to add more parameters to find_vqs, let's wrap the call so
we don't need to tweak all drivers every time.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

drivers/block/virtio_blk.c

@@ -455,8 +455,7 @@ static int init_vq(struct virtio_blk *vblk)
 	}
 
 	/* Discover virtqueues and write information to configuration.  */
-	err = vdev->config->find_vqs(vdev, num_vqs, vqs, callbacks, names,
-			&desc);
+	err = virtio_find_vqs(vdev, num_vqs, vqs, callbacks, names, &desc);
 	if (err)
 		goto out;
 

drivers/char/virtio_console.c

@@ -1945,7 +1945,7 @@ static int init_vqs(struct ports_device *portdev)
 		}
 	}
 	/* Find the queues. */
-	err = portdev->vdev->config->find_vqs(portdev->vdev, nr_queues, vqs,
+	err = virtio_find_vqs(portdev->vdev, nr_queues, vqs,
 			      io_callbacks,
 			      (const char **)io_names, NULL);
 	if (err)

drivers/crypto/virtio/virtio_crypto_core.c

@@ -119,8 +119,7 @@ static int virtcrypto_find_vqs(struct virtio_crypto *vi)
 		names[i] = vi->data_vq[i].name;
 	}
 
-	ret = vi->vdev->config->find_vqs(vi->vdev, total_vqs, vqs, callbacks,
-					 names, NULL);
+	ret = virtio_find_vqs(vi->vdev, total_vqs, vqs, callbacks, names, NULL);
 	if (ret)
 		goto err_find;
 

drivers/gpu/drm/virtio/virtgpu_kms.c

@@ -175,8 +175,7 @@ int virtio_gpu_driver_load(struct drm_device *dev, unsigned long flags)
 	DRM_INFO("virgl 3d acceleration not supported by guest\n");
 #endif
 
-	ret = vgdev->vdev->config->find_vqs(vgdev->vdev, 2, vqs,
-					    callbacks, names, NULL);
+	ret = virtio_find_vqs(vgdev->vdev, 2, vqs, callbacks, names, NULL);
 	if (ret) {
 		DRM_ERROR("failed to find virt queues\n");
 		goto err_vqs;

drivers/net/caif/caif_virtio.c

@@ -679,8 +679,7 @@ static int cfv_probe(struct virtio_device *vdev)
 		goto err;
 
 	/* Get the TX virtio ring. This is a "guest side vring". */
-	err = vdev->config->find_vqs(vdev, 1, &cfv->vq_tx, &vq_cbs, &names,
-			NULL);
+	err = virtio_find_vqs(vdev, 1, &cfv->vq_tx, &vq_cbs, &names, NULL);
 	if (err)
 		goto err;
 

drivers/net/virtio_net.c

@@ -2079,8 +2079,7 @@ static int virtnet_find_vqs(struct virtnet_info *vi)
 		names[txq2vq(i)] = vi->sq[i].name;
 	}
 
-	ret = vi->vdev->config->find_vqs(vi->vdev, total_vqs, vqs, callbacks,
-					 names, NULL);
+	ret = virtio_find_vqs(vi->vdev, total_vqs, vqs, callbacks, names, NULL);
 	if (ret)
 		goto err_find;
 

drivers/rpmsg/virtio_rpmsg_bus.c

@@ -869,7 +869,7 @@ static int rpmsg_probe(struct virtio_device *vdev)
 	init_waitqueue_head(&vrp->sendq);
 
 	/* We expect two virtqueues, rx and tx (and in this order) */
-	err = vdev->config->find_vqs(vdev, 2, vqs, vq_cbs, names, NULL);
+	err = virtio_find_vqs(vdev, 2, vqs, vq_cbs, names, NULL);
 	if (err)
 		goto free_vrp;
 

drivers/scsi/virtio_scsi.c

@@ -870,8 +870,7 @@ static int virtscsi_init(struct virtio_device *vdev,
 	}
 
 	/* Discover virtqueues and write information to configuration.  */
-	err = vdev->config->find_vqs(vdev, num_vqs, vqs, callbacks, names,
-			&desc);
+	err = virtio_find_vqs(vdev, num_vqs, vqs, callbacks, names, &desc);
 	if (err)
 		goto out;
 

drivers/virtio/virtio_balloon.c

@@ -418,8 +418,7 @@ static int init_vqs(struct virtio_balloon *vb)
 	 * optionally stat.
 	 */
 	nvqs = virtio_has_feature(vb->vdev, VIRTIO_BALLOON_F_STATS_VQ) ? 3 : 2;
-	err = vb->vdev->config->find_vqs(vb->vdev, nvqs, vqs, callbacks, names,
-			NULL);
+	err = virtio_find_vqs(vb->vdev, nvqs, vqs, callbacks, names, NULL);
 	if (err)
 		return err;
 

drivers/virtio/virtio_input.c

@@ -173,8 +173,7 @@ static int virtinput_init_vqs(struct virtio_input *vi)
 	static const char * const names[] = { "events", "status" };
 	int err;
 
-	err = vi->vdev->config->find_vqs(vi->vdev, 2, vqs, cbs, names,
-			NULL);
+	err = virtio_find_vqs(vi->vdev, 2, vqs, cbs, names, NULL);
 	if (err)
 		return err;
 	vi->evt = vqs[0];

include/linux/virtio_config.h

@@ -179,6 +179,15 @@ struct virtqueue *virtio_find_single_vq(struct virtio_device *vdev,
 	return vq;
 }
 
+static inline
+int virtio_find_vqs(struct virtio_device *vdev, unsigned nvqs,
+			struct virtqueue *vqs[], vq_callback_t *callbacks[],
+			const char * const names[],
+			struct irq_affinity *desc)
+{
+	return vdev->config->find_vqs(vdev, nvqs, vqs, callbacks, names, desc);
+}
+
 /**
  * virtio_device_ready - enable vq use in probe function
  * @vdev: the device

net/vmw_vsock/virtio_transport.c

@@ -573,7 +573,7 @@ static int virtio_vsock_probe(struct virtio_device *vdev)
 
 	vsock->vdev = vdev;
 
-	ret = vsock->vdev->config->find_vqs(vsock->vdev, VSOCK_VQ_MAX,
+	ret = virtio_find_vqs(vsock->vdev, VSOCK_VQ_MAX,
 			      vsock->vqs, callbacks, names,
 			      NULL);
 	if (ret < 0)