From: Deepak R Varma Date: Thu, 5 Nov 2020 18:50:16 +0000 (+0530) Subject: drm/qxl: replace idr_init() by idr_init_base() X-Git-Tag: v5.11-rc1~206^2~10^2~70 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5d4c1edf0ddcf8308386a422840a43fd4122ffb5;p=thirdparty%2Flinux.git drm/qxl: replace idr_init() by idr_init_base() idr_init() uses base 0 which is an invalid identifier for this driver. The idr_alloc for this driver uses 1 as start value for ID range. The new function idr_init_base allows IDR to set the ID lookup from base 1. This avoids all lookups that otherwise starts from 0 since 0 is always unused / available. References: commit 6ce711f27500 ("idr: Make 1-based IDRs more efficient") Signed-off-by: Deepak R Varma Link: http://patchwork.freedesktop.org/patch/msgid/20201105185016.GA71797@localhost Signed-off-by: Gerd Hoffmann --- diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c index dc5b3850a4d4b..228e2b9198f10 100644 --- a/drivers/gpu/drm/qxl/qxl_kms.c +++ b/drivers/gpu/drm/qxl/qxl_kms.c @@ -231,11 +231,11 @@ int qxl_device_init(struct qxl_device *qdev, goto cursor_ring_free; } - idr_init(&qdev->release_idr); + idr_init_base(&qdev->release_idr, 1); spin_lock_init(&qdev->release_idr_lock); spin_lock_init(&qdev->release_lock); - idr_init(&qdev->surf_id_idr); + idr_init_base(&qdev->surf_id_idr, 1); spin_lock_init(&qdev->surf_id_idr_lock); mutex_init(&qdev->async_io_mutex);