virtio_gpu_fence_emit() always returns 0, since it has no error paths.
Consequently no calls for virtio_gpu_fence_emit() use the return value, and it can be removed.
Signed-off-by: Robert Foss robert.foss@collabora.com Suggested-by: Emil Velikov emil.velikov@collabora.com Reviewed-by: Chia-I Wu olvaffe@gmail.com ---
This patch was suggested in this email thread:
[PATCH] drm/virtio: allocate fences with GFP_KERNEL https://www.spinics.net/lists/dri-devel/msg208536.html
Changes since v1: - Rebased on drm-misc-next - Added r-b from Chia-I Wu
drivers/gpu/drm/virtio/virtgpu_drv.h | 2 +- drivers/gpu/drm/virtio/virtgpu_fence.c | 3 +-- 2 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index 90461feeafdb..2d3e5b1debb3 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -355,7 +355,7 @@ int virtio_gpu_mmap(struct file *filp, struct vm_area_struct *vma); bool virtio_fence_signaled(struct dma_fence *f); struct virtio_gpu_fence *virtio_gpu_fence_alloc( struct virtio_gpu_device *vgdev); -int virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev, +void virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev, struct virtio_gpu_ctrl_hdr *cmd_hdr, struct virtio_gpu_fence *fence); void virtio_gpu_fence_event_process(struct virtio_gpu_device *vdev, diff --git a/drivers/gpu/drm/virtio/virtgpu_fence.c b/drivers/gpu/drm/virtio/virtgpu_fence.c index 8aecc36a0417..70d6c4329778 100644 --- a/drivers/gpu/drm/virtio/virtgpu_fence.c +++ b/drivers/gpu/drm/virtio/virtgpu_fence.c @@ -85,7 +85,7 @@ struct virtio_gpu_fence *virtio_gpu_fence_alloc(struct virtio_gpu_device *vgdev) return fence; }
-int virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev, +void virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev, struct virtio_gpu_ctrl_hdr *cmd_hdr, struct virtio_gpu_fence *fence) { @@ -102,7 +102,6 @@ int virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev,
cmd_hdr->flags |= cpu_to_le32(VIRTIO_GPU_FLAG_FENCE); cmd_hdr->fence_id = cpu_to_le64(fence->f.seqno); - return 0; }
void virtio_gpu_fence_event_process(struct virtio_gpu_device *vgdev,