drm/ttm: remove use_ticket parameter from ttm_bo_reserve

Not used any more.

Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_object.h

@@ -71,7 +71,7 @@ static inline int amdgpu_bo_reserve(struct amdgpu_bo *bo, bool no_intr)
 {
 	int r;
 
-	r = ttm_bo_reserve(&bo->tbo, !no_intr, false, false, 0);
+	r = ttm_bo_reserve(&bo->tbo, !no_intr, false, NULL);
 	if (unlikely(r != 0)) {
 		if (r != -ERESTARTSYS)
 			dev_err(bo->adev->dev, "%p reserve failed\n", bo);

drivers/gpu/drm/ast/ast_drv.h

@@ -367,7 +367,7 @@ static inline int ast_bo_reserve(struct ast_bo *bo, bool no_wait)
 {
 	int ret;
 
-	ret = ttm_bo_reserve(&bo->bo, true, no_wait, false, NULL);
+	ret = ttm_bo_reserve(&bo->bo, true, no_wait, NULL);
 	if (ret) {
 		if (ret != -ERESTARTSYS && ret != -EBUSY)
 			DRM_ERROR("reserve failed %p\n", bo);

drivers/gpu/drm/bochs/bochs_fbdev.c

@@ -82,7 +82,7 @@ static int bochsfb_create(struct drm_fb_helper *helper,
 
 	bo = gem_to_bochs_bo(gobj);
 
-	ret = ttm_bo_reserve(&bo->bo, true, false, false, NULL);
+	ret = ttm_bo_reserve(&bo->bo, true, false, NULL);
 	if (ret)
 		return ret;
 

drivers/gpu/drm/bochs/bochs_kms.c

@@ -43,7 +43,7 @@ static int bochs_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
 	if (old_fb) {
 		bochs_fb = to_bochs_framebuffer(old_fb);
 		bo = gem_to_bochs_bo(bochs_fb->obj);
-		ret = ttm_bo_reserve(&bo->bo, true, false, false, NULL);
+		ret = ttm_bo_reserve(&bo->bo, true, false, NULL);
 		if (ret) {
 			DRM_ERROR("failed to reserve old_fb bo\n");
 		} else {
@@ -57,7 +57,7 @@ static int bochs_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
 
 	bochs_fb = to_bochs_framebuffer(crtc->primary->fb);
 	bo = gem_to_bochs_bo(bochs_fb->obj);
-	ret = ttm_bo_reserve(&bo->bo, true, false, false, NULL);
+	ret = ttm_bo_reserve(&bo->bo, true, false, NULL);
 	if (ret)
 		return ret;
 

drivers/gpu/drm/cirrus/cirrus_drv.h

@@ -245,7 +245,7 @@ static inline int cirrus_bo_reserve(struct cirrus_bo *bo, bool no_wait)
 {
 	int ret;
 
-	ret = ttm_bo_reserve(&bo->bo, true, no_wait, false, NULL);
+	ret = ttm_bo_reserve(&bo->bo, true, no_wait, NULL);
 	if (ret) {
 		if (ret != -ERESTARTSYS && ret != -EBUSY)
 			DRM_ERROR("reserve failed %p\n", bo);

drivers/gpu/drm/mgag200/mgag200_drv.h

@@ -281,7 +281,7 @@ static inline int mgag200_bo_reserve(struct mgag200_bo *bo, bool no_wait)
 {
 	int ret;
 
-	ret = ttm_bo_reserve(&bo->bo, true, no_wait, false, NULL);
+	ret = ttm_bo_reserve(&bo->bo, true, no_wait, NULL);
 	if (ret) {
 		if (ret != -ERESTARTSYS && ret != -EBUSY)
 			DRM_ERROR("reserve failed %p\n", bo);

drivers/gpu/drm/nouveau/nouveau_bo.c

@@ -312,7 +312,7 @@ nouveau_bo_pin(struct nouveau_bo *nvbo, uint32_t memtype, bool contig)
 	bool force = false, evict = false;
 	int ret;
 
-	ret = ttm_bo_reserve(bo, false, false, false, NULL);
+	ret = ttm_bo_reserve(bo, false, false, NULL);
 	if (ret)
 		return ret;
 
@@ -385,7 +385,7 @@ nouveau_bo_unpin(struct nouveau_bo *nvbo)
 	struct ttm_buffer_object *bo = &nvbo->bo;
 	int ret, ref;
 
-	ret = ttm_bo_reserve(bo, false, false, false, NULL);
+	ret = ttm_bo_reserve(bo, false, false, NULL);
 	if (ret)
 		return ret;
 
@@ -420,7 +420,7 @@ nouveau_bo_map(struct nouveau_bo *nvbo)
 {
 	int ret;
 
-	ret = ttm_bo_reserve(&nvbo->bo, false, false, false, NULL);
+	ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
 	if (ret)
 		return ret;
 

drivers/gpu/drm/nouveau/nouveau_display.c

@@ -739,7 +739,7 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 	}
 
 	mutex_lock(&cli->mutex);
-	ret = ttm_bo_reserve(&new_bo->bo, true, false, false, NULL);
+	ret = ttm_bo_reserve(&new_bo->bo, true, false, NULL);
 	if (ret)
 		goto fail_unpin;
 
@@ -753,7 +753,7 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 	if (new_bo != old_bo) {
 		ttm_bo_unreserve(&new_bo->bo);
 
-		ret = ttm_bo_reserve(&old_bo->bo, true, false, false, NULL);
+		ret = ttm_bo_reserve(&old_bo->bo, true, false, NULL);
 		if (ret)
 			goto fail_unpin;
 	}

drivers/gpu/drm/nouveau/nouveau_gem.c

@@ -71,7 +71,7 @@ nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv)
 	if (!cli->vm)
 		return 0;
 
-	ret = ttm_bo_reserve(&nvbo->bo, false, false, false, NULL);
+	ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
 	if (ret)
 		return ret;
 
@@ -156,7 +156,7 @@ nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv)
 	if (!cli->vm)
 		return;
 
-	ret = ttm_bo_reserve(&nvbo->bo, false, false, false, NULL);
+	ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
 	if (ret)
 		return;
 
@@ -409,7 +409,7 @@ retry:
 			break;
 		}
 
-		ret = ttm_bo_reserve(&nvbo->bo, true, false, true, &op->ticket);
+		ret = ttm_bo_reserve(&nvbo->bo, true, false, &op->ticket);
 		if (ret) {
 			list_splice_tail_init(&vram_list, &op->list);
 			list_splice_tail_init(&gart_list, &op->list);

drivers/gpu/drm/qxl/qxl_object.h

@@ -31,7 +31,7 @@ static inline int qxl_bo_reserve(struct qxl_bo *bo, bool no_wait)
 {
 	int r;
 
-	r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, NULL);
+	r = ttm_bo_reserve(&bo->tbo, true, no_wait, NULL);
 	if (unlikely(r != 0)) {
 		if (r != -ERESTARTSYS) {
 			struct qxl_device *qdev = (struct qxl_device *)bo->gem_base.dev->dev_private;
@@ -67,7 +67,7 @@ static inline int qxl_bo_wait(struct qxl_bo *bo, u32 *mem_type,
 {
 	int r;
 
-	r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, NULL);
+	r = ttm_bo_reserve(&bo->tbo, true, no_wait, NULL);
 	if (unlikely(r != 0)) {
 		if (r != -ERESTARTSYS) {
 			struct qxl_device *qdev = (struct qxl_device *)bo->gem_base.dev->dev_private;

drivers/gpu/drm/radeon/radeon_object.c

@@ -832,7 +832,7 @@ int radeon_bo_wait(struct radeon_bo *bo, u32 *mem_type, bool no_wait)
 {
 	int r;
 
-	r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, NULL);
+	r = ttm_bo_reserve(&bo->tbo, true, no_wait, NULL);
 	if (unlikely(r != 0))
 		return r;
 	if (mem_type)

drivers/gpu/drm/radeon/radeon_object.h

@@ -65,7 +65,7 @@ static inline int radeon_bo_reserve(struct radeon_bo *bo, bool no_intr)
 {
 	int r;
 
-	r = ttm_bo_reserve(&bo->tbo, !no_intr, false, false, NULL);
+	r = ttm_bo_reserve(&bo->tbo, !no_intr, false, NULL);
 	if (unlikely(r != 0)) {
 		if (r != -ERESTARTSYS)
 			dev_err(bo->rdev->dev, "%p reserve failed\n", bo);

drivers/gpu/drm/ttm/ttm_bo.c

@@ -452,7 +452,7 @@ static void ttm_bo_cleanup_refs_or_queue(struct ttm_buffer_object *bo)
 	int ret;
 
 	spin_lock(&glob->lru_lock);
-	ret = __ttm_bo_reserve(bo, false, true, false, NULL);
+	ret = __ttm_bo_reserve(bo, false, true, NULL);
 
 	if (!ret) {
 		if (!ttm_bo_wait(bo, false, false, true)) {
@@ -526,7 +526,7 @@ static int ttm_bo_cleanup_refs_and_unlock(struct ttm_buffer_object *bo,
 			return -EBUSY;
 
 		spin_lock(&glob->lru_lock);
-		ret = __ttm_bo_reserve(bo, false, true, false, NULL);
+		ret = __ttm_bo_reserve(bo, false, true, NULL);
 
 		/*
 		 * We raced, and lost, someone else holds the reservation now,
@@ -595,11 +595,10 @@ static int ttm_bo_delayed_delete(struct ttm_bo_device *bdev, bool remove_all)
 			kref_get(&nentry->list_kref);
 		}
 
-		ret = __ttm_bo_reserve(entry, false, true, false, NULL);
+		ret = __ttm_bo_reserve(entry, false, true, NULL);
 		if (remove_all && ret) {
 			spin_unlock(&glob->lru_lock);
-			ret = __ttm_bo_reserve(entry, false, false,
-					       false, NULL);
+			ret = __ttm_bo_reserve(entry, false, false, NULL);
 			spin_lock(&glob->lru_lock);
 		}
 
@@ -741,7 +740,7 @@ static int ttm_mem_evict_first(struct ttm_bo_device *bdev,
 
 	spin_lock(&glob->lru_lock);
 	list_for_each_entry(bo, &man->lru, lru) {
-		ret = __ttm_bo_reserve(bo, false, true, false, NULL);
+		ret = __ttm_bo_reserve(bo, false, true, NULL);
 		if (!ret) {
 			if (place && (place->fpfn || place->lpfn)) {
 				/* Don't evict this BO if it's outside of the
@@ -1623,7 +1622,7 @@ int ttm_bo_synccpu_write_grab(struct ttm_buffer_object *bo, bool no_wait)
 	 * Using ttm_bo_reserve makes sure the lru lists are updated.
 	 */
 
-	ret = ttm_bo_reserve(bo, true, no_wait, false, NULL);
+	ret = ttm_bo_reserve(bo, true, no_wait, NULL);
 	if (unlikely(ret != 0))
 		return ret;
 	ret = ttm_bo_wait(bo, false, true, no_wait);
@@ -1656,7 +1655,7 @@ static int ttm_bo_swapout(struct ttm_mem_shrink *shrink)
 
 	spin_lock(&glob->lru_lock);
 	list_for_each_entry(bo, &glob->swap_lru, swap) {
-		ret = __ttm_bo_reserve(bo, false, true, false, NULL);
+		ret = __ttm_bo_reserve(bo, false, true, NULL);
 		if (!ret)
 			break;
 	}
@@ -1755,7 +1754,7 @@ int ttm_bo_wait_unreserved(struct ttm_buffer_object *bo)
 		return -ERESTARTSYS;
 	if (!ww_mutex_is_locked(&bo->resv->lock))
 		goto out_unlock;
-	ret = __ttm_bo_reserve(bo, true, false, false, NULL);
+	ret = __ttm_bo_reserve(bo, true, false, NULL);
 	if (unlikely(ret != 0))
 		goto out_unlock;
 	__ttm_bo_unreserve(bo);

drivers/gpu/drm/ttm/ttm_bo_vm.c

@@ -108,7 +108,7 @@ static int ttm_bo_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 	 * for reserve, and if it fails, retry the fault after waiting
 	 * for the buffer to become unreserved.
 	 */
-	ret = ttm_bo_reserve(bo, true, true, false, NULL);
+	ret = ttm_bo_reserve(bo, true, true, NULL);
 	if (unlikely(ret != 0)) {
 		if (ret != -EBUSY)
 			return VM_FAULT_NOPAGE;

drivers/gpu/drm/ttm/ttm_execbuf_util.c

@@ -112,8 +112,7 @@ int ttm_eu_reserve_buffers(struct ww_acquire_ctx *ticket,
 	list_for_each_entry(entry, list, head) {
 		struct ttm_buffer_object *bo = entry->bo;
 
-		ret = __ttm_bo_reserve(bo, intr, (ticket == NULL), true,
-				       ticket);
+		ret = __ttm_bo_reserve(bo, intr, (ticket == NULL), ticket);
 		if (!ret && unlikely(atomic_read(&bo->cpu_writers) > 0)) {
 			__ttm_bo_unreserve(bo);
 

drivers/gpu/drm/virtio/virtgpu_drv.h

@@ -400,7 +400,7 @@ static inline int virtio_gpu_object_reserve(struct virtio_gpu_object *bo,
 {
 	int r;
 
-	r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, NULL);
+	r = ttm_bo_reserve(&bo->tbo, true, no_wait, NULL);
 	if (unlikely(r != 0)) {
 		if (r != -ERESTARTSYS) {
 			struct virtio_gpu_device *qdev =

drivers/gpu/drm/virtio/virtgpu_object.c

@@ -155,7 +155,7 @@ int virtio_gpu_object_wait(struct virtio_gpu_object *bo, bool no_wait)
 {
 	int r;
 
-	r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, NULL);
+	r = ttm_bo_reserve(&bo->tbo, true, no_wait, NULL);
 	if (unlikely(r != 0))
 		return r;
 	r = ttm_bo_wait(&bo->tbo, true, true, no_wait);

drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c

@@ -421,7 +421,7 @@ static int vmw_cotable_resize(struct vmw_resource *res, size_t new_size)
 	}
 
 	bo = &buf->base;
-	WARN_ON_ONCE(ttm_bo_reserve(bo, false, true, false, NULL));
+	WARN_ON_ONCE(ttm_bo_reserve(bo, false, true, NULL));
 
 	ret = ttm_bo_wait(old_bo, false, false, false);
 	if (unlikely(ret != 0)) {

drivers/gpu/drm/vmwgfx/vmwgfx_dmabuf.c

@@ -56,7 +56,7 @@ int vmw_dmabuf_pin_in_placement(struct vmw_private *dev_priv,
 
 	vmw_execbuf_release_pinned_bo(dev_priv);
 
-	ret = ttm_bo_reserve(bo, interruptible, false, false, NULL);
+	ret = ttm_bo_reserve(bo, interruptible, false, NULL);
 	if (unlikely(ret != 0))
 		goto err;
 
@@ -98,7 +98,7 @@ int vmw_dmabuf_pin_in_vram_or_gmr(struct vmw_private *dev_priv,
 
 	vmw_execbuf_release_pinned_bo(dev_priv);
 
-	ret = ttm_bo_reserve(bo, interruptible, false, false, NULL);
+	ret = ttm_bo_reserve(bo, interruptible, false, NULL);
 	if (unlikely(ret != 0))
 		goto err;
 
@@ -174,7 +174,7 @@ int vmw_dmabuf_pin_in_start_of_vram(struct vmw_private *dev_priv,
 		return ret;
 
 	vmw_execbuf_release_pinned_bo(dev_priv);
-	ret = ttm_bo_reserve(bo, interruptible, false, false, NULL);
+	ret = ttm_bo_reserve(bo, interruptible, false, NULL);
 	if (unlikely(ret != 0))
 		goto err_unlock;
 
@@ -225,7 +225,7 @@ int vmw_dmabuf_unpin(struct vmw_private *dev_priv,
 	if (unlikely(ret != 0))
 		return ret;
 
-	ret = ttm_bo_reserve(bo, interruptible, false, false, NULL);
+	ret = ttm_bo_reserve(bo, interruptible, false, NULL);
 	if (unlikely(ret != 0))
 		goto err;
 

drivers/gpu/drm/vmwgfx/vmwgfx_drv.c

@@ -326,7 +326,7 @@ static int vmw_dummy_query_bo_create(struct vmw_private *dev_priv)
 	if (unlikely(ret != 0))
 		return ret;
 
-	ret = ttm_bo_reserve(&vbo->base, false, true, false, NULL);
+	ret = ttm_bo_reserve(&vbo->base, false, true, NULL);
 	BUG_ON(ret != 0);
 	vmw_bo_pin_reserved(vbo, true);
 

drivers/gpu/drm/vmwgfx/vmwgfx_kms.c

@@ -98,7 +98,7 @@ int vmw_cursor_update_dmabuf(struct vmw_private *dev_priv,
 	kmap_offset = 0;
 	kmap_num = (width*height*4 + PAGE_SIZE - 1) >> PAGE_SHIFT;
 
-	ret = ttm_bo_reserve(&dmabuf->base, true, false, false, NULL);
+	ret = ttm_bo_reserve(&dmabuf->base, true, false, NULL);
 	if (unlikely(ret != 0)) {
 		DRM_ERROR("reserve failed\n");
 		return -EINVAL;
@@ -318,7 +318,7 @@ void vmw_kms_cursor_snoop(struct vmw_surface *srf,
 	kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
 	kmap_num = (64*64*4) >> PAGE_SHIFT;
 
-	ret = ttm_bo_reserve(bo, true, false, false, NULL);
+	ret = ttm_bo_reserve(bo, true, false, NULL);
 	if (unlikely(ret != 0)) {
 		DRM_ERROR("reserve failed\n");
 		return;
@@ -1859,7 +1859,7 @@ int vmw_kms_helper_buffer_prepare(struct vmw_private *dev_priv,
 	struct ttm_buffer_object *bo = &buf->base;
 	int ret;
 
-	ttm_bo_reserve(bo, false, false, interruptible, NULL);
+	ttm_bo_reserve(bo, false, false, NULL);
 	ret = vmw_validate_single_buffer(dev_priv, bo, interruptible,
 					 validate_as_mob);
 	if (ret)

drivers/gpu/drm/vmwgfx/vmwgfx_mob.c

@@ -222,7 +222,7 @@ static void vmw_takedown_otable_base(struct vmw_private *dev_priv,
 	if (bo) {
 		int ret;
 
-		ret = ttm_bo_reserve(bo, false, true, false, NULL);
+		ret = ttm_bo_reserve(bo, false, true, NULL);
 		BUG_ON(ret != 0);
 
 		vmw_fence_single_bo(bo, NULL);
@@ -262,7 +262,7 @@ static int vmw_otable_batch_setup(struct vmw_private *dev_priv,
 	if (unlikely(ret != 0))
 		goto out_no_bo;
 
-	ret = ttm_bo_reserve(batch->otable_bo, false, true, false, NULL);
+	ret = ttm_bo_reserve(batch->otable_bo, false, true, NULL);
 	BUG_ON(ret != 0);
 	ret = vmw_bo_driver.ttm_tt_populate(batch->otable_bo->ttm);
 	if (unlikely(ret != 0))
@@ -357,7 +357,7 @@ static void vmw_otable_batch_takedown(struct vmw_private *dev_priv,
 			vmw_takedown_otable_base(dev_priv, i,
 						 &batch->otables[i]);
 
-	ret = ttm_bo_reserve(bo, false, true, false, NULL);
+	ret = ttm_bo_reserve(bo, false, true, NULL);
 	BUG_ON(ret != 0);
 
 	vmw_fence_single_bo(bo, NULL);
@@ -440,7 +440,7 @@ static int vmw_mob_pt_populate(struct vmw_private *dev_priv,
 	if (unlikely(ret != 0))
 		return ret;
 
-	ret = ttm_bo_reserve(mob->pt_bo, false, true, false, NULL);
+	ret = ttm_bo_reserve(mob->pt_bo, false, true, NULL);
 
 	BUG_ON(ret != 0);
 	ret = vmw_bo_driver.ttm_tt_populate(mob->pt_bo->ttm);
@@ -545,7 +545,7 @@ static void vmw_mob_pt_setup(struct vmw_mob *mob,
 	const struct vmw_sg_table *vsgt;
 	int ret;
 
-	ret = ttm_bo_reserve(bo, false, true, false, NULL);
+	ret = ttm_bo_reserve(bo, false, true, NULL);
 	BUG_ON(ret != 0);
 
 	vsgt = vmw_bo_sg_table(bo);
@@ -595,7 +595,7 @@ void vmw_mob_unbind(struct vmw_private *dev_priv,
 	struct ttm_buffer_object *bo = mob->pt_bo;
 
 	if (bo) {
-		ret = ttm_bo_reserve(bo, false, true, false, NULL);
+		ret = ttm_bo_reserve(bo, false, true, NULL);
 		/*
 		 * Noone else should be using this buffer.
 		 */

drivers/gpu/drm/vmwgfx/vmwgfx_resource.c

@@ -129,7 +129,7 @@ static void vmw_resource_release(struct kref *kref)
 	if (res->backup) {
 		struct ttm_buffer_object *bo = &res->backup->base;
 
-		ttm_bo_reserve(bo, false, false, false, NULL);
+		ttm_bo_reserve(bo, false, false, NULL);
 		if (!list_empty(&res->mob_head) &&
 		    res->func->unbind != NULL) {
 			struct ttm_validate_buffer val_buf;
@@ -1717,8 +1717,7 @@ int vmw_resource_pin(struct vmw_resource *res, bool interruptible)
 		if (res->backup) {
 			vbo = res->backup;
 
-			ttm_bo_reserve(&vbo->base, interruptible, false, false,
-				       NULL);
+			ttm_bo_reserve(&vbo->base, interruptible, false, NULL);
 			if (!vbo->pin_count) {
 				ret = ttm_bo_validate
 					(&vbo->base,
@@ -1773,7 +1772,7 @@ void vmw_resource_unpin(struct vmw_resource *res)
 	if (--res->pin_count == 0 && res->backup) {
 		struct vmw_dma_buffer *vbo = res->backup;
 
-		ttm_bo_reserve(&vbo->base, false, false, false, NULL);
+		ttm_bo_reserve(&vbo->base, false, false, NULL);
 		vmw_bo_pin_reserved(vbo, false);
 		ttm_bo_unreserve(&vbo->base);
 	}

drivers/gpu/drm/vmwgfx/vmwgfx_shader.c

@@ -988,7 +988,7 @@ int vmw_compat_shader_add(struct vmw_private *dev_priv,
 	if (unlikely(ret != 0))
 		goto out;
 
-	ret = ttm_bo_reserve(&buf->base, false, true, false, NULL);
+	ret = ttm_bo_reserve(&buf->base, false, true, NULL);
 	if (unlikely(ret != 0))
 		goto no_reserve;
 

include/drm/ttm/ttm_bo_driver.h

@@ -759,8 +759,7 @@ extern void ttm_bo_add_to_lru(struct ttm_buffer_object *bo);
  * @bo: A pointer to a struct ttm_buffer_object.
  * @interruptible: Sleep interruptible if waiting.
  * @no_wait: Don't sleep while trying to reserve, rather return -EBUSY.
- * @use_ticket: If @bo is already reserved, Only sleep waiting for
- * it to become unreserved if @ticket->stamp is older.
+ * @ticket: ticket used to acquire the ww_mutex.
  *
  * Will not remove reserved buffers from the lru lists.
  * Otherwise identical to ttm_bo_reserve.
@@ -776,8 +775,7 @@ extern void ttm_bo_add_to_lru(struct ttm_buffer_object *bo);
  * be returned if @use_ticket is set to true.
  */
 static inline int __ttm_bo_reserve(struct ttm_buffer_object *bo,
-				   bool interruptible,
-				   bool no_wait, bool use_ticket,
+				   bool interruptible, bool no_wait,
 				   struct ww_acquire_ctx *ticket)
 {
 	int ret = 0;
@@ -806,8 +804,7 @@ static inline int __ttm_bo_reserve(struct ttm_buffer_object *bo,
  * @bo: A pointer to a struct ttm_buffer_object.
  * @interruptible: Sleep interruptible if waiting.
  * @no_wait: Don't sleep while trying to reserve, rather return -EBUSY.
- * @use_ticket: If @bo is already reserved, Only sleep waiting for
- * it to become unreserved if @ticket->stamp is older.
+ * @ticket: ticket used to acquire the ww_mutex.
  *
  * Locks a buffer object for validation. (Or prevents other processes from
  * locking it for validation) and removes it from lru lists, while taking
@@ -846,15 +843,14 @@ static inline int __ttm_bo_reserve(struct ttm_buffer_object *bo,
  * be returned if @use_ticket is set to true.
  */
 static inline int ttm_bo_reserve(struct ttm_buffer_object *bo,
-				 bool interruptible,
-				 bool no_wait, bool use_ticket,
+				 bool interruptible, bool no_wait,
 				 struct ww_acquire_ctx *ticket)
 {
 	int ret;
 
 	WARN_ON(!atomic_read(&bo->kref.refcount));
 
-	ret = __ttm_bo_reserve(bo, interruptible, no_wait, use_ticket, ticket);
+	ret = __ttm_bo_reserve(bo, interruptible, no_wait, ticket);
 	if (likely(ret == 0))
 		ttm_bo_del_sub_from_lru(bo);