diff options
| author |   Gerd Hoffmann <kraxel@redhat.com> | 2019-08-13 10:25:08 +0200 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2019-08-28 09:28:05 +0200 |
| commit | 4100a7b834389e91638a0b789399fd7b31e258c1 (patch) | |
| tree | 9d9d23242a9c2c8a1785b1a28e12863a489cbbcb /drivers/gpu/drm/virtio/virtgpu_vq.c | |
| parent | drm/virtio: add plane check (diff) | |
| download | linux-dev-4100a7b834389e91638a0b789399fd7b31e258c1.tar.xz linux-dev-4100a7b834389e91638a0b789399fd7b31e258c1.zip | |
drm/virtio: cleanup queue functions
Make the queue functions return void, none of
the call sites checks the return value.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190813082509.29324-2-kraxel@redhat.com
Diffstat (limited to 'drivers/gpu/drm/virtio/virtgpu_vq.c')
| -rw-r--r-- | drivers/gpu/drm/virtio/virtgpu_vq.c | 41 |
1 files changed, 14 insertions, 27 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c index 7ac20490e1b4..ca91e83ffaef 100644 --- a/drivers/gpu/drm/virtio/virtgpu_vq.c +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c @@ -252,8 +252,8 @@ void virtio_gpu_dequeue_cursor_func(struct work_struct *work) wake_up(&vgdev->cursorq.ack_queue); } -static int virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev, - struct virtio_gpu_vbuffer *vbuf) +static void virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev, + struct virtio_gpu_vbuffer *vbuf) __releases(&vgdev->ctrlq.qlock) __acquires(&vgdev->ctrlq.qlock) { @@ -263,7 +263,7 @@ static int virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev, int ret; if (!vgdev->vqs_ready) - return -ENODEV; + return; sg_init_one(&vcmd, vbuf->buf, vbuf->size); sgs[outcnt + incnt] = &vcmd; @@ -294,30 +294,22 @@ retry: virtqueue_kick(vq); } - - if (!ret) - ret = vq->num_free; - return ret; } -static int virtio_gpu_queue_ctrl_buffer(struct virtio_gpu_device *vgdev, - struct virtio_gpu_vbuffer *vbuf) +static void virtio_gpu_queue_ctrl_buffer(struct virtio_gpu_device *vgdev, + struct virtio_gpu_vbuffer *vbuf) { - int rc; - spin_lock(&vgdev->ctrlq.qlock); - rc = virtio_gpu_queue_ctrl_buffer_locked(vgdev, vbuf); + virtio_gpu_queue_ctrl_buffer_locked(vgdev, vbuf); spin_unlock(&vgdev->ctrlq.qlock); - return rc; } -static int virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev, - struct virtio_gpu_vbuffer *vbuf, - struct virtio_gpu_ctrl_hdr *hdr, - struct virtio_gpu_fence *fence) +static void virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev, + struct virtio_gpu_vbuffer *vbuf, + struct virtio_gpu_ctrl_hdr *hdr, + struct virtio_gpu_fence *fence) { struct virtqueue *vq = vgdev->ctrlq.vq; - int rc; again: spin_lock(&vgdev->ctrlq.qlock); @@ -338,13 +330,12 @@ again: if (fence) virtio_gpu_fence_emit(vgdev, hdr, fence); - rc = virtio_gpu_queue_ctrl_buffer_locked(vgdev, vbuf); + virtio_gpu_queue_ctrl_buffer_locked(vgdev, vbuf); spin_unlock(&vgdev->ctrlq.qlock); - return rc; } -static int virtio_gpu_queue_cursor(struct virtio_gpu_device *vgdev, - struct virtio_gpu_vbuffer *vbuf) +static void virtio_gpu_queue_cursor(struct virtio_gpu_device *vgdev, + struct virtio_gpu_vbuffer *vbuf) { struct virtqueue *vq = vgdev->cursorq.vq; struct scatterlist *sgs[1], ccmd; @@ -352,7 +343,7 @@ static int virtio_gpu_queue_cursor(struct virtio_gpu_device *vgdev, int outcnt; if (!vgdev->vqs_ready) - return -ENODEV; + return; sg_init_one(&ccmd, vbuf->buf, vbuf->size); sgs[0] = &ccmd; @@ -374,10 +365,6 @@ retry: } spin_unlock(&vgdev->cursorq.qlock); - - if (!ret) - ret = vq->num_free; - return ret; } /* just create gem objects for userspace and long lived objects, |