drm/qxl: Remove qxl_debugfs_takedown()

drm_debugfs_cleanup() now removes all minor->debugfs_list entries
automatically, so the drm_driver.debugfs_cleanup callback is not
needed.

Cc: airlied@linux.ie
Cc: kraxel@redhat.com
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170126225621.12314-19-noralf@tronnes.org

drivers/gpu/drm/qxl/qxl_debugfs.c

@@ -100,15 +100,6 @@ qxl_debugfs_init(struct drm_minor *minor)
 	return 0;
 }
 
-void
-qxl_debugfs_takedown(struct drm_minor *minor)
-{
-#if defined(CONFIG_DEBUG_FS)
-	drm_debugfs_remove_files(qxl_debugfs_list, QXL_DEBUGFS_ENTRIES,
-				 minor);
-#endif
-}
-
 int qxl_debugfs_add_files(struct qxl_device *qdev,
 			  struct drm_info_list *files,
 			  unsigned nfiles)

drivers/gpu/drm/qxl/qxl_drv.c

@@ -269,7 +269,6 @@ static struct drm_driver qxl_driver = {
 	.dumb_destroy = drm_gem_dumb_destroy,
 #if defined(CONFIG_DEBUG_FS)
 	.debugfs_init = qxl_debugfs_init,
-	.debugfs_cleanup = qxl_debugfs_takedown,
 #endif
 	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,

drivers/gpu/drm/qxl/qxl_drv.h

@@ -523,7 +523,6 @@ int qxl_garbage_collect(struct qxl_device *qdev);
 /* debugfs */
 
 int qxl_debugfs_init(struct drm_minor *minor);
-void qxl_debugfs_takedown(struct drm_minor *minor);
 int qxl_ttm_debugfs_init(struct qxl_device *qdev);
 
 /* qxl_prime.c */