drm/gem-cma-helper: Remove drm_gem_cma_dumb_map_offset()

There are no more users of drm_gem_cma_dumb_map_offset(), so remove it.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1502034068-51384-20-git-send-email-noralf@tronnes.org

diff --git a/drivers/gpu/drm/drm_gem_cma_helper.c b/drivers/gpu/drm/drm_gem_cma_helper.c
index f4e0057..373e33f 100644 (file)
--- a/drivers/gpu/drm/drm_gem_cma_helper.c
+++ b/drivers/gpu/drm/drm_gem_cma_helper.c
@@ -264,41 +264,6 @@ int drm_gem_cma_dumb_create(struct drm_file *file_priv,
 }
 EXPORT_SYMBOL_GPL(drm_gem_cma_dumb_create);
 
-/**
- * drm_gem_cma_dumb_map_offset - return the fake mmap offset for a CMA GEM
- *     object
- * @file_priv: DRM file-private structure containing the GEM object
- * @drm: DRM device
- * @handle: GEM object handle
- * @offset: return location for the fake mmap offset
- *
- * This function look up an object by its handle and returns the fake mmap
- * offset associated with it. Drivers using the CMA helpers should set this
- * as their &drm_driver.dumb_map_offset callback.
- *
- * Returns:
- * 0 on success or a negative error code on failure.
- */
-int drm_gem_cma_dumb_map_offset(struct drm_file *file_priv,
-                               struct drm_device *drm, u32 handle,
-                               u64 *offset)
-{
-       struct drm_gem_object *gem_obj;
-
-       gem_obj = drm_gem_object_lookup(file_priv, handle);
-       if (!gem_obj) {
-               dev_err(drm->dev, "failed to lookup GEM object\n");
-               return -EINVAL;
-       }
-
-       *offset = drm_vma_node_offset_addr(&gem_obj->vma_node);
-
-       drm_gem_object_put_unlocked(gem_obj);
-
-       return 0;
-}
-EXPORT_SYMBOL_GPL(drm_gem_cma_dumb_map_offset);
-
 const struct vm_operations_struct drm_gem_cma_vm_ops = {
        .open = drm_gem_vm_open,
        .close = drm_gem_vm_close,

diff --git a/include/drm/drm_gem_cma_helper.h b/include/drm/drm_gem_cma_helper.h
index b42529e..58a739b 100644 (file)
--- a/include/drm/drm_gem_cma_helper.h
+++ b/include/drm/drm_gem_cma_helper.h
@@ -73,11 +73,6 @@ int drm_gem_cma_dumb_create(struct drm_file *file_priv,
                            struct drm_device *drm,
                            struct drm_mode_create_dumb *args);
 
-/* map memory region for DRM framebuffer to user space */
-int drm_gem_cma_dumb_map_offset(struct drm_file *file_priv,
-                               struct drm_device *drm, u32 handle,
-                               u64 *offset);
-
 /* set vm_flags and we can change the VM attribute to other one at here */
 int drm_gem_cma_mmap(struct file *filp, struct vm_area_struct *vma);