drm: Remove unused drm_device from drm_gem_object_lookup()

drm_gem_object_lookup() has never required the drm_device for its file
local translation of the user handle to the GEM object. Let's remove the
unused parameter and save some space.

Signed-off-by: Chris Wilson <[e-mail]>
Cc: [e-mail]
Cc: Dave Airlie <[e-mail]>
Cc: Daniel Vetter <[e-mail]>
[danvet: Fixup kerneldoc too.]
Signed-off-by: Daniel Vetter <[e-mail]>

drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c

···
 		struct amdgpu_bo *bo;
 		struct mm_struct *usermm;
 
-		gobj = drm_gem_object_lookup(adev->ddev, filp, info[i].bo_handle);
+		gobj = drm_gem_object_lookup(filp, info[i].bo_handle);
 		if (!gobj) {
 			r = -ENOENT;
 			goto error_free;

drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c

···
 {
 	struct drm_gem_object *gobj;
 
-	gobj = drm_gem_object_lookup(p->adev->ddev, p->filp,
-				     data->handle);
+	gobj = drm_gem_object_lookup(p->filp, data->handle);
 	if (gobj == NULL)
 		return -EINVAL;
 

drivers/gpu/drm/amd/amdgpu/amdgpu_display.c

···
 	struct amdgpu_framebuffer *amdgpu_fb;
 	int ret;
 
-	obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
+	obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
 	if (obj ==  NULL) {
 		dev_err(&dev->pdev->dev, "No GEM object associated to handle 0x%08X, "
 			"can't create framebuffer\n", mode_cmd->handles[0]);

drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c

···
 	struct drm_gem_object *gobj;
 	struct amdgpu_bo *robj;
 
-	gobj = drm_gem_object_lookup(dev, filp, handle);
+	gobj = drm_gem_object_lookup(filp, handle);
 	if (gobj == NULL) {
 		return -ENOENT;
 	}
···
 	int r = 0;
 	long ret;
 
-	gobj = drm_gem_object_lookup(dev, filp, handle);
+	gobj = drm_gem_object_lookup(filp, handle);
 	if (gobj == NULL) {
 		return -ENOENT;
 	}
···
 	int r = -1;
 
 	DRM_DEBUG("%d \n", args->handle);
-	gobj = drm_gem_object_lookup(dev, filp, args->handle);
+	gobj = drm_gem_object_lookup(filp, args->handle);
 	if (gobj == NULL)
 		return -ENOENT;
 	robj = gem_to_amdgpu_bo(gobj);
···
 		return -EINVAL;
 	}
 
-	gobj = drm_gem_object_lookup(dev, filp, args->handle);
+	gobj = drm_gem_object_lookup(filp, args->handle);
 	if (gobj == NULL)
 		return -ENOENT;
 	rbo = gem_to_amdgpu_bo(gobj);
···
 	struct amdgpu_bo *robj;
 	int r;
 
-	gobj = drm_gem_object_lookup(dev, filp, args->handle);
+	gobj = drm_gem_object_lookup(filp, args->handle);
 	if (gobj == NULL) {
 		return -ENOENT;
 	}

drivers/gpu/drm/amd/amdgpu/dce_v10_0.c

···
 		return -EINVAL;
 	}
 
-	obj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
+	obj = drm_gem_object_lookup(file_priv, handle);
 	if (!obj) {
 		DRM_ERROR("Cannot find cursor object %x for crtc %d\n", handle, amdgpu_crtc->crtc_id);
 		return -ENOENT;

drivers/gpu/drm/amd/amdgpu/dce_v11_0.c

···
 		return -EINVAL;
 	}
 
-	obj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
+	obj = drm_gem_object_lookup(file_priv, handle);
 	if (!obj) {
 		DRM_ERROR("Cannot find cursor object %x for crtc %d\n", handle, amdgpu_crtc->crtc_id);
 		return -ENOENT;

drivers/gpu/drm/amd/amdgpu/dce_v8_0.c

···
 		return -EINVAL;
 	}
 
-	obj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
+	obj = drm_gem_object_lookup(file_priv, handle);
 	if (!obj) {
 		DRM_ERROR("Cannot find cursor object %x for crtc %d\n", handle, amdgpu_crtc->crtc_id);
 		return -ENOENT;

drivers/gpu/drm/armada/armada_crtc.c

···
 		if (w > 64 || h > 64 || (w > 32 && h > 32))
 			return -ENOMEM;
 
-		obj = armada_gem_object_lookup(dev, file, handle);
+		obj = armada_gem_object_lookup(file, handle);
 		if (!obj)
 			return -ENOENT;
 

drivers/gpu/drm/armada/armada_fb.c

···
 		goto err;
 	}
 
-	obj = armada_gem_object_lookup(dev, dfile, mode->handles[0]);
+	obj = armada_gem_object_lookup(dfile, mode->handles[0]);
 	if (!obj) {
 		ret = -ENOENT;
 		goto err;

drivers/gpu/drm/armada/armada_gem.c

···
 	struct armada_gem_object *obj;
 	int ret = 0;
 
-	obj = armada_gem_object_lookup(dev, file, handle);
+	obj = armada_gem_object_lookup(file, handle);
 	if (!obj) {
 		DRM_ERROR("failed to lookup gem object\n");
 		return -EINVAL;
···
 	struct armada_gem_object *dobj;
 	unsigned long addr;
 
-	dobj = armada_gem_object_lookup(dev, file, args->handle);
+	dobj = armada_gem_object_lookup(file, args->handle);
 	if (dobj == NULL)
 		return -ENOENT;
 
···
 	if (ret)
 		return ret;
 
-	dobj = armada_gem_object_lookup(dev, file, args->handle);
+	dobj = armada_gem_object_lookup(file, args->handle);
 	if (dobj == NULL)
 		return -ENOENT;
 

drivers/gpu/drm/armada/armada_gem.h

···
 int armada_gem_map_import(struct armada_gem_object *);
 
 static inline struct armada_gem_object *armada_gem_object_lookup(
-	struct drm_device *dev, struct drm_file *dfile, unsigned handle)
+	struct drm_file *dfile, unsigned handle)
 {
-	struct drm_gem_object *obj = drm_gem_object_lookup(dev, dfile, handle);
+	struct drm_gem_object *obj = drm_gem_object_lookup(dfile, handle);
 
 	return obj ? drm_to_armada_gem(obj) : NULL;
 }

drivers/gpu/drm/ast/ast_main.c

···
 	struct ast_framebuffer *ast_fb;
 	int ret;
 
-	obj = drm_gem_object_lookup(dev, filp, mode_cmd->handles[0]);
+	obj = drm_gem_object_lookup(filp, mode_cmd->handles[0]);
 	if (obj == NULL)
 		return ERR_PTR(-ENOENT);
 
···
 	struct drm_gem_object *obj;
 	struct ast_bo *bo;
 
-	obj = drm_gem_object_lookup(dev, file, handle);
+	obj = drm_gem_object_lookup(file, handle);
 	if (obj == NULL)
 		return -ENOENT;
 

drivers/gpu/drm/ast/ast_mode.c

···
 	if (width > AST_MAX_HWC_WIDTH || height > AST_MAX_HWC_HEIGHT)
 		return -EINVAL;
 
-	obj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
+	obj = drm_gem_object_lookup(file_priv, handle);
 	if (!obj) {
 		DRM_ERROR("Cannot find cursor object %x for crtc\n", handle);
 		return -ENOENT;

drivers/gpu/drm/bochs/bochs_mm.c

···
 	struct drm_gem_object *obj;
 	struct bochs_bo *bo;
 
-	obj = drm_gem_object_lookup(dev, file, handle);
+	obj = drm_gem_object_lookup(file, handle);
 	if (obj == NULL)
 		return -ENOENT;
 
···
 	if (mode_cmd->pixel_format != DRM_FORMAT_XRGB8888)
 		return ERR_PTR(-ENOENT);
 
-	obj = drm_gem_object_lookup(dev, filp, mode_cmd->handles[0]);
+	obj = drm_gem_object_lookup(filp, mode_cmd->handles[0]);
 	if (obj == NULL)
 		return ERR_PTR(-ENOENT);
 

drivers/gpu/drm/cirrus/cirrus_main.c

···
 				      bpp, mode_cmd->pitches[0]))
 		return ERR_PTR(-EINVAL);
 
-	obj = drm_gem_object_lookup(dev, filp, mode_cmd->handles[0]);
+	obj = drm_gem_object_lookup(filp, mode_cmd->handles[0]);
 	if (obj == NULL)
 		return ERR_PTR(-ENOENT);
 
···
 	struct drm_gem_object *obj;
 	struct cirrus_bo *bo;
 
-	obj = drm_gem_object_lookup(dev, file, handle);
+	obj = drm_gem_object_lookup(file, handle);
 	if (obj == NULL)
 		return -ENOENT;
 

drivers/gpu/drm/drm_fb_cma_helper.c

···
 		unsigned int height = mode_cmd->height / (i ? vsub : 1);
 		unsigned int min_size;
 
-		obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[i]);
+		obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[i]);
 		if (!obj) {
 			dev_err(dev->dev, "Failed to lookup GEM object\n");
 			ret = -ENXIO;

drivers/gpu/drm/drm_gem.c

···
 
 /**
  * drm_gem_object_lookup - look up a GEM object from it's handle
- * @dev: DRM device
  * @filp: DRM file private date
  * @handle: userspace handle
  *
···
  * otherwise.
  */
 struct drm_gem_object *
-drm_gem_object_lookup(struct drm_device *dev, struct drm_file *filp,
-		      u32 handle)
+drm_gem_object_lookup(struct drm_file *filp, u32 handle)
 {
 	struct drm_gem_object *obj;
 
···
 
 	/* Check if we currently have a reference on the object */
 	obj = idr_find(&filp->object_idr, handle);
-	if (obj == NULL) {
-		spin_unlock(&filp->table_lock);
-		return NULL;
-	}
-
-	drm_gem_object_reference(obj);
+	if (obj)
+		drm_gem_object_reference(obj);
 
 	spin_unlock(&filp->table_lock);
 
···
 	if (!drm_core_check_feature(dev, DRIVER_GEM))
 		return -ENODEV;
 
-	obj = drm_gem_object_lookup(dev, file_priv, args->handle);
+	obj = drm_gem_object_lookup(file_priv, args->handle);
 	if (obj == NULL)
 		return -ENOENT;
 

drivers/gpu/drm/drm_gem_cma_helper.c

···
 {
 	struct drm_gem_object *gem_obj;
 
-	gem_obj = drm_gem_object_lookup(drm, file_priv, handle);
+	gem_obj = drm_gem_object_lookup(file_priv, handle);
 	if (!gem_obj) {
 		dev_err(drm->dev, "failed to lookup GEM object\n");
 		return -EINVAL;

drivers/gpu/drm/drm_prime.c

···
 	struct dma_buf *dmabuf;
 
 	mutex_lock(&file_priv->prime.lock);
-	obj = drm_gem_object_lookup(dev, file_priv, handle);
+	obj = drm_gem_object_lookup(file_priv, handle);
 	if (!obj)  {
 		ret = -ENOENT;
 		goto out_unlock;

drivers/gpu/drm/etnaviv/etnaviv_drv.c

···
 	if (args->op & ~(ETNA_PREP_READ | ETNA_PREP_WRITE | ETNA_PREP_NOSYNC))
 		return -EINVAL;
 
-	obj = drm_gem_object_lookup(dev, file, args->handle);
+	obj = drm_gem_object_lookup(file, args->handle);
 	if (!obj)
 		return -ENOENT;
 
···
 	if (args->flags)
 		return -EINVAL;
 
-	obj = drm_gem_object_lookup(dev, file, args->handle);
+	obj = drm_gem_object_lookup(file, args->handle);
 	if (!obj)
 		return -ENOENT;
 
···
 	if (args->pad)
 		return -EINVAL;
 
-	obj = drm_gem_object_lookup(dev, file, args->handle);
+	obj = drm_gem_object_lookup(file, args->handle);
 	if (!obj)
 		return -ENOENT;
 
···
 	if (!gpu)
 		return -ENXIO;
 
-	obj = drm_gem_object_lookup(dev, file, args->handle);
+	obj = drm_gem_object_lookup(file, args->handle);
 	if (!obj)
 		return -ENOENT;
 

drivers/gpu/drm/exynos/exynos_drm_fb.c

···
 	int ret;
 
 	for (i = 0; i < drm_format_num_planes(mode_cmd->pixel_format); i++) {
-		obj = drm_gem_object_lookup(dev, file_priv,
-					    mode_cmd->handles[i]);
+		obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[i]);
 		if (!obj) {
 			DRM_ERROR("failed to lookup gem object\n");
 			ret = -ENOENT;

drivers/gpu/drm/exynos/exynos_drm_gem.c

···
 	struct exynos_drm_gem *exynos_gem;
 	struct drm_gem_object *obj;
 
-	obj = drm_gem_object_lookup(dev, file_priv, gem_handle);
+	obj = drm_gem_object_lookup(file_priv, gem_handle);
 	if (!obj) {
 		DRM_ERROR("failed to lookup gem object.\n");
 		return 0;
···
 	struct exynos_drm_gem *exynos_gem;
 	struct drm_gem_object *obj;
 
-	obj = drm_gem_object_lookup(dev, filp, gem_handle);
+	obj = drm_gem_object_lookup(filp, gem_handle);
 	if (!obj) {
 		DRM_ERROR("failed to lookup gem object.\n");
 		return ERR_PTR(-EINVAL);
···
 {
 	struct drm_gem_object *obj;
 
-	obj = drm_gem_object_lookup(dev, filp, gem_handle);
+	obj = drm_gem_object_lookup(filp, gem_handle);
 	if (!obj) {
 		DRM_ERROR("failed to lookup gem object.\n");
 		return;
···
 	struct drm_exynos_gem_info *args = data;
 	struct drm_gem_object *obj;
 
-	obj = drm_gem_object_lookup(dev, file_priv, args->handle);
+	obj = drm_gem_object_lookup(file_priv, args->handle);
 	if (!obj) {
 		DRM_ERROR("failed to lookup gem object.\n");
 		return -EINVAL;
···
 	 *	with DRM_IOCTL_MODE_MAP_DUMB command.
 	 */
 
-	obj = drm_gem_object_lookup(dev, file_priv, handle);
+	obj = drm_gem_object_lookup(file_priv, handle);
 	if (!obj) {
 		DRM_ERROR("failed to lookup gem object.\n");
 		return -EINVAL;

drivers/gpu/drm/gma500/framebuffer.c

···
 	 *	Find the GEM object and thus the gtt range object that is
 	 *	to back this space
 	 */
-	obj = drm_gem_object_lookup(dev, filp, cmd->handles[0]);
+	obj = drm_gem_object_lookup(filp, cmd->handles[0]);
 	if (obj == NULL)
 		return ERR_PTR(-ENOENT);
 

drivers/gpu/drm/gma500/gem.c

···
 	struct drm_gem_object *obj;
 
 	/* GEM does all our handle to object mapping */
-	obj = drm_gem_object_lookup(dev, file, handle);
+	obj = drm_gem_object_lookup(file, handle);
 	if (obj == NULL)
 		return -ENOENT;
 

drivers/gpu/drm/gma500/gma_display.c

···
 		return -EINVAL;
 	}
 
-	obj = drm_gem_object_lookup(dev, file_priv, handle);
+	obj = drm_gem_object_lookup(file_priv, handle);
 	if (!obj) {
 		ret = -ENOENT;
 		goto unlock;

drivers/gpu/drm/i915/i915_gem.c

···
 	if (ret)
 		return ret;
 
-	obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle));
+	obj = to_intel_bo(drm_gem_object_lookup(file, args->handle));
 	if (&obj->base == NULL) {
 		ret = -ENOENT;
 		goto unlock;
···
 	if (ret)
 		goto put_rpm;
 
-	obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle));
+	obj = to_intel_bo(drm_gem_object_lookup(file, args->handle));
 	if (&obj->base == NULL) {
 		ret = -ENOENT;
 		goto unlock;
···
 	if (ret)
 		return ret;
 
-	obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle));
+	obj = to_intel_bo(drm_gem_object_lookup(file, args->handle));
 	if (&obj->base == NULL) {
 		ret = -ENOENT;
 		goto unlock;
···
 	if (ret)
 		return ret;
 
-	obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle));
+	obj = to_intel_bo(drm_gem_object_lookup(file, args->handle));
 	if (&obj->base == NULL) {
 		ret = -ENOENT;
 		goto unlock;
···
 	if (args->flags & I915_MMAP_WC && !cpu_has_pat)
 		return -ENODEV;
 
-	obj = drm_gem_object_lookup(dev, file, args->handle);
+	obj = drm_gem_object_lookup(file, args->handle);
 	if (obj == NULL)
 		return -ENOENT;
 
···
 	if (ret)
 		return ret;
 
-	obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle));
+	obj = to_intel_bo(drm_gem_object_lookup(file, handle));
 	if (&obj->base == NULL) {
 		ret = -ENOENT;
 		goto unlock;
···
 	if (ret)
 		return ret;
 
-	obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->bo_handle));
+	obj = to_intel_bo(drm_gem_object_lookup(file, args->bo_handle));
 	if (&obj->base == NULL) {
 		mutex_unlock(&dev->struct_mutex);
 		return -ENOENT;
···
 	struct drm_i915_gem_caching *args = data;
 	struct drm_i915_gem_object *obj;
 
-	obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle));
+	obj = to_intel_bo(drm_gem_object_lookup(file, args->handle));
 	if (&obj->base == NULL)
 		return -ENOENT;
 
···
 	if (ret)
 		goto rpm_put;
 
-	obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle));
+	obj = to_intel_bo(drm_gem_object_lookup(file, args->handle));
 	if (&obj->base == NULL) {
 		ret = -ENOENT;
 		goto unlock;
···
 	if (ret)
 		return ret;
 
-	obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle));
+	obj = to_intel_bo(drm_gem_object_lookup(file, args->handle));
 	if (&obj->base == NULL) {
 		ret = -ENOENT;
 		goto unlock;
···
 	if (ret)
 		return ret;
 
-	obj = to_intel_bo(drm_gem_object_lookup(dev, file_priv, args->handle));
+	obj = to_intel_bo(drm_gem_object_lookup(file_priv, args->handle));
 	if (&obj->base == NULL) {
 		ret = -ENOENT;
 		goto unlock;

drivers/gpu/drm/i915/i915_gem_tiling.c

···
 	struct drm_i915_gem_object *obj;
 	int ret = 0;
 
-	obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle));
+	obj = to_intel_bo(drm_gem_object_lookup(file, args->handle));
 	if (&obj->base == NULL)
 		return -ENOENT;
 
···
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_i915_gem_object *obj;
 
-	obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle));
+	obj = to_intel_bo(drm_gem_object_lookup(file, args->handle));
 	if (&obj->base == NULL)
 		return -ENOENT;
 

drivers/gpu/drm/i915/intel_display.c

···
 	struct drm_i915_gem_object *obj;
 	struct drm_mode_fb_cmd2 mode_cmd = *user_mode_cmd;
 
-	obj = to_intel_bo(drm_gem_object_lookup(dev, filp,
-						mode_cmd.handles[0]));
+	obj = to_intel_bo(drm_gem_object_lookup(filp, mode_cmd.handles[0]));
 	if (&obj->base == NULL)
 		return ERR_PTR(-ENOENT);
 

drivers/gpu/drm/i915/intel_overlay.c

···
 	}
 	crtc = to_intel_crtc(drmmode_crtc);
 
-	new_bo = to_intel_bo(drm_gem_object_lookup(dev, file_priv,
+	new_bo = to_intel_bo(drm_gem_object_lookup(file_priv,
 						   put_image_rec->bo_handle));
 	if (&new_bo->base == NULL) {
 		ret = -ENOENT;

drivers/gpu/drm/mgag200/mgag200_cursor.c

···
 		return 0;
 	}
 
-	obj = drm_gem_object_lookup(dev, file_priv, handle);
+	obj = drm_gem_object_lookup(file_priv, handle);
 	if (!obj)
 		return -ENOENT;
 

drivers/gpu/drm/mgag200/mgag200_main.c

···
 	struct mga_framebuffer *mga_fb;
 	int ret;
 
-	obj = drm_gem_object_lookup(dev, filp, mode_cmd->handles[0]);
+	obj = drm_gem_object_lookup(filp, mode_cmd->handles[0]);
 	if (obj == NULL)
 		return ERR_PTR(-ENOENT);
 
···
 	struct drm_gem_object *obj;
 	struct mgag200_bo *bo;
 
-	obj = drm_gem_object_lookup(dev, file, handle);
+	obj = drm_gem_object_lookup(file, handle);
 	if (obj == NULL)
 		return -ENOENT;
 

drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c

···
 	}
 
 	if (handle) {
-		cursor_bo = drm_gem_object_lookup(dev, file_priv, handle);
+		cursor_bo = drm_gem_object_lookup(file_priv, handle);
 		if (!cursor_bo)
 			return -ENOENT;
 	} else {

drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c

···
 		goto set_cursor;
 	}
 
-	cursor_bo = drm_gem_object_lookup(dev, file, handle);
+	cursor_bo = drm_gem_object_lookup(file, handle);
 	if (!cursor_bo)
 		return -ENOENT;
 

drivers/gpu/drm/msm/msm_drv.c

···
 		return -EINVAL;
 	}
 
-	obj = drm_gem_object_lookup(dev, file, args->handle);
+	obj = drm_gem_object_lookup(file, args->handle);
 	if (!obj)
 		return -ENOENT;
 
···
 	struct drm_gem_object *obj;
 	int ret;
 
-	obj = drm_gem_object_lookup(dev, file, args->handle);
+	obj = drm_gem_object_lookup(file, args->handle);
 	if (!obj)
 		return -ENOENT;
 
···
 	if (args->pad)
 		return -EINVAL;
 
-	obj = drm_gem_object_lookup(dev, file, args->handle);
+	obj = drm_gem_object_lookup(file, args->handle);
 	if (!obj)
 		return -ENOENT;
 

drivers/gpu/drm/msm/msm_fb.c

···
 	int ret, i, n = drm_format_num_planes(mode_cmd->pixel_format);
 
 	for (i = 0; i < n; i++) {
-		bos[i] = drm_gem_object_lookup(dev, file,
-				mode_cmd->handles[i]);
+		bos[i] = drm_gem_object_lookup(file, mode_cmd->handles[i]);
 		if (!bos[i]) {
 			ret = -ENXIO;
 			goto out_unref;

drivers/gpu/drm/msm/msm_gem.c

···
 	int ret = 0;
 
 	/* GEM does all our handle to object mapping */
-	obj = drm_gem_object_lookup(dev, file, handle);
+	obj = drm_gem_object_lookup(file, handle);
 	if (obj == NULL) {
 		ret = -ENOENT;
 		goto fail;

drivers/gpu/drm/nouveau/dispnv04/crtc.c

···
 	if (width != 64 || height != 64)
 		return -EINVAL;
 
-	gem = drm_gem_object_lookup(dev, file_priv, buffer_handle);
+	gem = drm_gem_object_lookup(file_priv, buffer_handle);
 	if (!gem)
 		return -ENOENT;
 	cursor = nouveau_gem_object(gem);

drivers/gpu/drm/nouveau/nouveau_display.c

···
 	struct drm_gem_object *gem;
 	int ret = -ENOMEM;
 
-	gem = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
+	gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
 	if (!gem)
 		return ERR_PTR(-ENOENT);
 
···
 {
 	struct drm_gem_object *gem;
 
-	gem = drm_gem_object_lookup(dev, file_priv, handle);
+	gem = drm_gem_object_lookup(file_priv, handle);
 	if (gem) {
 		struct nouveau_bo *bo = nouveau_gem_object(gem);
 		*poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);

drivers/gpu/drm/nouveau/nouveau_gem.c

···
 		struct drm_gem_object *gem;
 		struct nouveau_bo *nvbo;
 
-		gem = drm_gem_object_lookup(dev, file_priv, b->handle);
+		gem = drm_gem_object_lookup(file_priv, b->handle);
 		if (!gem) {
 			NV_PRINTK(err, cli, "Unknown handle 0x%08x\n", b->handle);
 			ret = -ENOENT;
···
 	bool write = !!(req->flags & NOUVEAU_GEM_CPU_PREP_WRITE);
 	int ret;
 
-	gem = drm_gem_object_lookup(dev, file_priv, req->handle);
+	gem = drm_gem_object_lookup(file_priv, req->handle);
 	if (!gem)
 		return -ENOENT;
 	nvbo = nouveau_gem_object(gem);
···
 	struct drm_gem_object *gem;
 	struct nouveau_bo *nvbo;
 
-	gem = drm_gem_object_lookup(dev, file_priv, req->handle);
+	gem = drm_gem_object_lookup(file_priv, req->handle);
 	if (!gem)
 		return -ENOENT;
 	nvbo = nouveau_gem_object(gem);
···
 	struct drm_gem_object *gem;
 	int ret;
 
-	gem = drm_gem_object_lookup(dev, file_priv, req->handle);
+	gem = drm_gem_object_lookup(file_priv, req->handle);
 	if (!gem)
 		return -ENOENT;
 

drivers/gpu/drm/nouveau/nv50_display.c

···
 		if (width != 64 || height != 64)
 			return -EINVAL;
 
-		gem = drm_gem_object_lookup(dev, file_priv, handle);
+		gem = drm_gem_object_lookup(file_priv, handle);
 		if (unlikely(!gem))
 			return -ENOENT;
 		nvbo = nouveau_gem_object(gem);

drivers/gpu/drm/omapdrm/omap_drv.c

···
 
 	VERB("%p:%p: handle=%d, op=%x", dev, file_priv, args->handle, args->op);
 
-	obj = drm_gem_object_lookup(dev, file_priv, args->handle);
+	obj = drm_gem_object_lookup(file_priv, args->handle);
 	if (!obj)
 		return -ENOENT;
 
···
 
 	VERB("%p:%p: handle=%d", dev, file_priv, args->handle);
 
-	obj = drm_gem_object_lookup(dev, file_priv, args->handle);
+	obj = drm_gem_object_lookup(file_priv, args->handle);
 	if (!obj)
 		return -ENOENT;
 
···
 
 	VERB("%p:%p: handle=%d", dev, file_priv, args->handle);
 
-	obj = drm_gem_object_lookup(dev, file_priv, args->handle);
+	obj = drm_gem_object_lookup(file_priv, args->handle);
 	if (!obj)
 		return -ENOENT;
 

drivers/gpu/drm/omapdrm/omap_drv.h

···
 /* should these be made into common util helpers?
  */
 
-static inline int objects_lookup(struct drm_device *dev,
+static inline int objects_lookup(
 		struct drm_file *filp, uint32_t pixel_format,
 		struct drm_gem_object **bos, const uint32_t *handles)
 {
 	int i, n = drm_format_num_planes(pixel_format);
 
 	for (i = 0; i < n; i++) {
-		bos[i] = drm_gem_object_lookup(dev, filp, handles[i]);
+		bos[i] = drm_gem_object_lookup(filp, handles[i]);
 		if (!bos[i])
 			goto fail;
 

drivers/gpu/drm/omapdrm/omap_fb.c

···
 	struct drm_framebuffer *fb;
 	int ret;
 
-	ret = objects_lookup(dev, file, mode_cmd->pixel_format,
+	ret = objects_lookup(file, mode_cmd->pixel_format,
 			bos, mode_cmd->handles);
 	if (ret)
 		return ERR_PTR(ret);

drivers/gpu/drm/omapdrm/omap_gem.c

···
 	int ret = 0;
 
 	/* GEM does all our handle to object mapping */
-	obj = drm_gem_object_lookup(dev, file, handle);
+	obj = drm_gem_object_lookup(file, handle);
 	if (obj == NULL) {
 		ret = -ENOENT;
 		goto fail;

drivers/gpu/drm/qxl/qxl_display.c

···
 	if (!handle)
 		return qxl_hide_cursor(qdev);
 
-	obj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
+	obj = drm_gem_object_lookup(file_priv, handle);
 	if (!obj) {
 		DRM_ERROR("cannot find cursor object\n");
 		return -ENOENT;
···
 	struct qxl_framebuffer *qxl_fb;
 	int ret;
 
-	obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
+	obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
+	if (!obj)
+		return NULL;
 
 	qxl_fb = kzalloc(sizeof(*qxl_fb), GFP_KERNEL);
 	if (qxl_fb == NULL)

drivers/gpu/drm/qxl/qxl_dumb.c

···
 	struct qxl_bo *qobj;
 
 	BUG_ON(!offset_p);
-	gobj = drm_gem_object_lookup(dev, file_priv, handle);
+	gobj = drm_gem_object_lookup(file_priv, handle);
 	if (gobj == NULL)
 		return -ENOENT;
 	qobj = gem_to_qxl_bo(gobj);

drivers/gpu/drm/qxl/qxl_ioctl.c

···
 }
 
 /* return holding the reference to this object */
-static int qxlhw_handle_to_bo(struct qxl_device *qdev,
-			      struct drm_file *file_priv, uint64_t handle,
+static int qxlhw_handle_to_bo(struct drm_file *file_priv, uint64_t handle,
 			      struct qxl_release *release, struct qxl_bo **qbo_p)
 {
 	struct drm_gem_object *gobj;
 	struct qxl_bo *qobj;
 	int ret;
 
-	gobj = drm_gem_object_lookup(qdev->ddev, file_priv, handle);
+	gobj = drm_gem_object_lookup(file_priv, handle);
 	if (!gobj)
 		return -EINVAL;
 
···
 		reloc_info[i].type = reloc.reloc_type;
 
 		if (reloc.dst_handle) {
-			ret = qxlhw_handle_to_bo(qdev, file_priv, reloc.dst_handle, release,
+			ret = qxlhw_handle_to_bo(file_priv, reloc.dst_handle, release,
 						 &reloc_info[i].dst_bo);
 			if (ret)
 				goto out_free_bos;
···
 
 		/* reserve and validate the reloc dst bo */
 		if (reloc.reloc_type == QXL_RELOC_TYPE_BO || reloc.src_handle) {
-			ret = qxlhw_handle_to_bo(qdev, file_priv, reloc.src_handle, release,
+			ret = qxlhw_handle_to_bo(file_priv, reloc.src_handle, release,
 						 &reloc_info[i].src_bo);
 			if (ret)
 				goto out_free_bos;
···
 	    update_area->top >= update_area->bottom)
 		return -EINVAL;
 
-	gobj = drm_gem_object_lookup(dev, file, update_area->handle);
+	gobj = drm_gem_object_lookup(file, update_area->handle);
 	if (gobj == NULL)
 		return -ENOENT;
 

drivers/gpu/drm/radeon/radeon_cs.c

···
 		unsigned priority;
 
 		r = (struct drm_radeon_cs_reloc *)&chunk->kdata[i*4];
-		gobj = drm_gem_object_lookup(ddev, p->filp, r->handle);
+		gobj = drm_gem_object_lookup(p->filp, r->handle);
 		if (gobj == NULL) {
 			DRM_ERROR("gem object lookup failed 0x%x\n",
 				  r->handle);

drivers/gpu/drm/radeon/radeon_cursor.c

···
 		return -EINVAL;
 	}
 
-	obj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
+	obj = drm_gem_object_lookup(file_priv, handle);
 	if (!obj) {
 		DRM_ERROR("Cannot find cursor object %x for crtc %d\n", handle, radeon_crtc->crtc_id);
 		return -ENOENT;

drivers/gpu/drm/radeon/radeon_display.c

···
 	struct radeon_framebuffer *radeon_fb;
 	int ret;
 
-	obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
+	obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
 	if (obj ==  NULL) {
 		dev_err(&dev->pdev->dev, "No GEM object associated to handle 0x%08X, "
 			"can't create framebuffer\n", mode_cmd->handles[0]);

drivers/gpu/drm/radeon/radeon_gem.c

···
 	down_read(&rdev->exclusive_lock);
 
 	/* just do a BO wait for now */
-	gobj = drm_gem_object_lookup(dev, filp, args->handle);
+	gobj = drm_gem_object_lookup(filp, args->handle);
 	if (gobj == NULL) {
 		up_read(&rdev->exclusive_lock);
 		return -ENOENT;
···
 	struct drm_gem_object *gobj;
 	struct radeon_bo *robj;
 
-	gobj = drm_gem_object_lookup(dev, filp, handle);
+	gobj = drm_gem_object_lookup(filp, handle);
 	if (gobj == NULL) {
 		return -ENOENT;
 	}
···
 	int r;
 	uint32_t cur_placement = 0;
 
-	gobj = drm_gem_object_lookup(dev, filp, args->handle);
+	gobj = drm_gem_object_lookup(filp, args->handle);
 	if (gobj == NULL) {
 		return -ENOENT;
 	}
···
 	uint32_t cur_placement = 0;
 	long ret;
 
-	gobj = drm_gem_object_lookup(dev, filp, args->handle);
+	gobj = drm_gem_object_lookup(filp, args->handle);
 	if (gobj == NULL) {
 		return -ENOENT;
 	}
···
 	int r = 0;
 
 	DRM_DEBUG("%d \n", args->handle);
-	gobj = drm_gem_object_lookup(dev, filp, args->handle);
+	gobj = drm_gem_object_lookup(filp, args->handle);
 	if (gobj == NULL)
 		return -ENOENT;
 	robj = gem_to_radeon_bo(gobj);
···
 	int r = 0;
 
 	DRM_DEBUG("\n");
-	gobj = drm_gem_object_lookup(dev, filp, args->handle);
+	gobj = drm_gem_object_lookup(filp, args->handle);
 	if (gobj == NULL)
 		return -ENOENT;
 	rbo = gem_to_radeon_bo(gobj);
···
 		return -EINVAL;
 	}
 
-	gobj = drm_gem_object_lookup(dev, filp, args->handle);
+	gobj = drm_gem_object_lookup(filp, args->handle);
 	if (gobj == NULL) {
 		args->operation = RADEON_VA_RESULT_ERROR;
 		return -ENOENT;
···
 	struct radeon_bo *robj;
 	int r;
 
-	gobj = drm_gem_object_lookup(dev, filp, args->handle);
+	gobj = drm_gem_object_lookup(filp, args->handle);
 	if (gobj == NULL) {
 		return -ENOENT;
 	}

drivers/gpu/drm/rockchip/rockchip_drm_fb.c

···
 		unsigned int height = mode_cmd->height / (i ? vsub : 1);
 		unsigned int min_size;
 
-		obj = drm_gem_object_lookup(dev, file_priv,
-					    mode_cmd->handles[i]);
+		obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[i]);
 		if (!obj) {
 			dev_err(dev->dev, "Failed to lookup GEM object\n");
 			ret = -ENXIO;

drivers/gpu/drm/rockchip/rockchip_drm_gem.c

···
 	struct drm_gem_object *obj;
 	int ret;
 
-	obj = drm_gem_object_lookup(dev, file_priv, handle);
+	obj = drm_gem_object_lookup(file_priv, handle);
 	if (!obj) {
 		DRM_ERROR("failed to lookup gem object.\n");
 		return -EINVAL;

drivers/gpu/drm/tegra/drm.c

···
 }
 
 static struct host1x_bo *
-host1x_bo_lookup(struct drm_device *drm, struct drm_file *file, u32 handle)
+host1x_bo_lookup(struct drm_file *file, u32 handle)
 {
 	struct drm_gem_object *gem;
 	struct tegra_bo *bo;
 
-	gem = drm_gem_object_lookup(drm, file, handle);
+	gem = drm_gem_object_lookup(file, handle);
 	if (!gem)
 		return NULL;
 
···
 	if (err < 0)
 		return err;
 
-	dest->cmdbuf.bo = host1x_bo_lookup(drm, file, cmdbuf);
+	dest->cmdbuf.bo = host1x_bo_lookup(file, cmdbuf);
 	if (!dest->cmdbuf.bo)
 		return -ENOENT;
 
-	dest->target.bo = host1x_bo_lookup(drm, file, target);
+	dest->target.bo = host1x_bo_lookup(file, target);
 	if (!dest->target.bo)
 		return -ENOENT;
 
···
 			goto fail;
 		}
 
-		bo = host1x_bo_lookup(drm, file, cmdbuf.handle);
+		bo = host1x_bo_lookup(file, cmdbuf.handle);
 		if (!bo) {
 			err = -ENOENT;
 			goto fail;
···
 	struct drm_gem_object *gem;
 	struct tegra_bo *bo;
 
-	gem = drm_gem_object_lookup(drm, file, args->handle);
+	gem = drm_gem_object_lookup(file, args->handle);
 	if (!gem)
 		return -EINVAL;
 
···
 		return -EINVAL;
 	}
 
-	gem = drm_gem_object_lookup(drm, file, args->handle);
+	gem = drm_gem_object_lookup(file, args->handle);
 	if (!gem)
 		return -ENOENT;
 
···
 	struct tegra_bo *bo;
 	int err = 0;
 
-	gem = drm_gem_object_lookup(drm, file, args->handle);
+	gem = drm_gem_object_lookup(file, args->handle);
 	if (!gem)
 		return -ENOENT;
 
···
 	if (args->flags & ~DRM_TEGRA_GEM_FLAGS)
 		return -EINVAL;
 
-	gem = drm_gem_object_lookup(drm, file, args->handle);
+	gem = drm_gem_object_lookup(file, args->handle);
 	if (!gem)
 		return -ENOENT;
 
···
 	struct drm_gem_object *gem;
 	struct tegra_bo *bo;
 
-	gem = drm_gem_object_lookup(drm, file, args->handle);
+	gem = drm_gem_object_lookup(file, args->handle);
 	if (!gem)
 		return -ENOENT;
 

drivers/gpu/drm/tegra/fb.c

···
 		unsigned int height = cmd->height / (i ? vsub : 1);
 		unsigned int size, bpp;
 
-		gem = drm_gem_object_lookup(drm, file, cmd->handles[i]);
+		gem = drm_gem_object_lookup(file, cmd->handles[i]);
 		if (!gem) {
 			err = -ENXIO;
 			goto unreference;

drivers/gpu/drm/tegra/gem.c

···
 	struct drm_gem_object *gem;
 	struct tegra_bo *bo;
 
-	gem = drm_gem_object_lookup(drm, file, handle);
+	gem = drm_gem_object_lookup(file, handle);
 	if (!gem) {
 		dev_err(drm->dev, "failed to lookup GEM object\n");
 		return -EINVAL;

drivers/gpu/drm/udl/udl_fb.c

···
 	int ret;
 	uint32_t size;
 
-	obj = drm_gem_object_lookup(dev, file, mode_cmd->handles[0]);
+	obj = drm_gem_object_lookup(file, mode_cmd->handles[0]);
 	if (obj == NULL)
 		return ERR_PTR(-ENOENT);
 

drivers/gpu/drm/udl/udl_gem.c

···
 	int ret = 0;
 
 	mutex_lock(&dev->struct_mutex);
-	obj = drm_gem_object_lookup(dev, file, handle);
+	obj = drm_gem_object_lookup(file, handle);
 	if (obj == NULL) {
 		ret = -ENOENT;
 		goto unlock;

drivers/gpu/drm/vc4/vc4_bo.c

···
 	struct drm_vc4_mmap_bo *args = data;
 	struct drm_gem_object *gem_obj;
 
-	gem_obj = drm_gem_object_lookup(dev, file_priv, args->handle);
+	gem_obj = drm_gem_object_lookup(file_priv, args->handle);
 	if (!gem_obj) {
 		DRM_ERROR("Failed to look up GEM BO %d\n", args->handle);
 		return -EINVAL;

drivers/gpu/drm/vc4/vc4_gem.c

···
 	if (args->pad != 0)
 		return -EINVAL;
 
-	gem_obj = drm_gem_object_lookup(dev, file_priv, args->handle);
+	gem_obj = drm_gem_object_lookup(file_priv, args->handle);
 	if (!gem_obj) {
 		DRM_ERROR("Failed to look up GEM BO %d\n", args->handle);
 		return -EINVAL;

drivers/gpu/drm/vgem/vgem_drv.c

···
 	int ret = 0;
 	struct drm_gem_object *obj;
 
-	obj = drm_gem_object_lookup(dev, file, handle);
+	obj = drm_gem_object_lookup(file, handle);
 	if (!obj)
 		return -ENOENT;
 

drivers/gpu/drm/virtio/virtgpu_display.c

···
 	}
 
 	/* lookup the cursor */
-	gobj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
+	gobj = drm_gem_object_lookup(file_priv, handle);
 	if (gobj == NULL)
 		return -ENOENT;
 
···
 	int ret;
 
 	/* lookup object associated with res handle */
-	obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
+	obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
 	if (!obj)
 		return ERR_PTR(-EINVAL);
 

drivers/gpu/drm/virtio/virtgpu_gem.c

···
 	struct drm_gem_object *gobj;
 	struct virtio_gpu_object *obj;
 	BUG_ON(!offset_p);
-	gobj = drm_gem_object_lookup(dev, file_priv, handle);
+	gobj = drm_gem_object_lookup(file_priv, handle);
 	if (gobj == NULL)
 		return -ENOENT;
 	obj = gem_to_virtio_gpu_obj(gobj);

drivers/gpu/drm/virtio/virtgpu_ioctl.c

···
 		}
 
 		for (i = 0; i < exbuf->num_bo_handles; i++) {
-			gobj = drm_gem_object_lookup(dev,
-						     drm_file, bo_handles[i]);
+			gobj = drm_gem_object_lookup(drm_file, bo_handles[i]);
 			if (!gobj) {
 				drm_free_large(bo_handles);
 				drm_free_large(buflist);
···
 	struct drm_gem_object *gobj = NULL;
 	struct virtio_gpu_object *qobj = NULL;
 
-	gobj = drm_gem_object_lookup(dev, file_priv, ri->bo_handle);
+	gobj = drm_gem_object_lookup(file_priv, ri->bo_handle);
 	if (gobj == NULL)
 		return -ENOENT;
 
···
 	if (vgdev->has_virgl_3d == false)
 		return -ENOSYS;
 
-	gobj = drm_gem_object_lookup(dev, file, args->bo_handle);
+	gobj = drm_gem_object_lookup(file, args->bo_handle);
 	if (gobj == NULL)
 		return -ENOENT;
 
···
 	int ret;
 	u32 offset = args->offset;
 
-	gobj = drm_gem_object_lookup(dev, file, args->bo_handle);
+	gobj = drm_gem_object_lookup(file, args->bo_handle);
 	if (gobj == NULL)
 		return -ENOENT;
 
···
 	int ret;
 	bool nowait = false;
 
-	gobj = drm_gem_object_lookup(dev, file, args->handle);
+	gobj = drm_gem_object_lookup(file, args->handle);
 	if (gobj == NULL)
 		return -ENOENT;
 

include/drm/drm_gem.h

···
 void drm_gem_put_pages(struct drm_gem_object *obj, struct page **pages,
 		bool dirty, bool accessed);
 
-struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
-					     struct drm_file *filp,
-					     u32 handle);
+struct drm_gem_object *drm_gem_object_lookup(struct drm_file *filp, u32 handle);
 int drm_gem_dumb_destroy(struct drm_file *file,
 			 struct drm_device *dev,
 			 uint32_t handle);