From: Danilo Krummrich Date: Fri, 1 Jul 2022 18:52:58 +0000 (+0200) Subject: drm: use idr_init_base() to initialize mode_config.object_idr X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=1765378dfb10d4feedfc71cd721c4140d927c488;p=linux.git 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 --- diff --git a/drivers/gpu/drm/drm_mode_config.c b/drivers/gpu/drm/drm_mode_config.c index 59b34f07cfce7..6d832277aa735 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);