From 1765378dfb10d4feedfc71cd721c4140d927c488 Mon Sep 17 00:00:00 2001 From: Danilo Krummrich Date: Fri, 1 Jul 2022 20:52:58 +0200 Subject: [PATCH] drm: use idr_init_base() to initialize mode_config.object_idr idr_init_base(), implemented by commit 6ce711f27500 ("idr: Make 1-based IDRs more efficient"), let us set an arbitrary base other than idr_init(), which uses base 0. Since, for this IDR, no ID < 1 is ever requested/allocated, using idr_init_base(&idr, 1) avoids unnecessary tree walks. Signed-off-by: Danilo Krummrich Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20220701185303.284082-6-dakr@redhat.com --- drivers/gpu/drm/drm_mode_config.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_mode_config.c b/drivers/gpu/drm/drm_mode_config.c index 59b34f0..6d83227 100644 --- a/drivers/gpu/drm/drm_mode_config.c +++ b/drivers/gpu/drm/drm_mode_config.c @@ -412,7 +412,7 @@ int drmm_mode_config_init(struct drm_device *dev) INIT_LIST_HEAD(&dev->mode_config.property_blob_list); INIT_LIST_HEAD(&dev->mode_config.plane_list); INIT_LIST_HEAD(&dev->mode_config.privobj_list); - idr_init(&dev->mode_config.object_idr); + idr_init_base(&dev->mode_config.object_idr, 1); idr_init(&dev->mode_config.tile_idr); ida_init(&dev->mode_config.connector_ida); spin_lock_init(&dev->mode_config.connector_list_lock); -- 2.7.4