drm/exynos: Don't cast GEM object to Exynos GEM object when not needed (6037bafa) · Commits · 戴 / test

The exynos_drm_gem_dumb_map_offset() doesn't need to access any Exynos-specific GEM object fields, don't cast the GEM object. Signed-off-by:

drivers/gpu/drm/exynos/exynos_drm_gem.c

+3 −6

Original line number	Diff line number	Diff line
		@@ -689,7 +689,6 @@ int exynos_drm_gem_dumb_map_offset(struct drm_file *file_priv,
		struct drm_device *dev, uint32_t handle,
		uint64_t *offset)
		{
		struct exynos_drm_gem_obj *exynos_gem_obj;
		struct drm_gem_object *obj;
		int ret = 0;

		@@ -710,15 +709,13 @@ int exynos_drm_gem_dumb_map_offset(struct drm_file *file_priv,
		goto unlock;
		}

		exynos_gem_obj = to_exynos_gem_obj(obj);

		if (!exynos_gem_obj->base.map_list.map) {
		ret = drm_gem_create_mmap_offset(&exynos_gem_obj->base);
		if (!obj->map_list.map) {
		ret = drm_gem_create_mmap_offset(obj);
		if (ret)
		goto out;
		}

		*offset = (u64)exynos_gem_obj->base.map_list.hash.key << PAGE_SHIFT;
		*offset = (u64)obj->map_list.hash.key << PAGE_SHIFT;
		DRM_DEBUG_KMS("offset = 0x%lx\n", (unsigned long)*offset);

		out: