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authorDanilo Krummrich <[email protected]>2022-07-01 18:52:56 +0000
committerMaxime Ripard <[email protected]>2022-07-28 14:35:55 +0000
commita49afeb4165361819b92b7991b97457bac4c674c (patch)
tree3017454bef2fadc4fa09dfd9d86a06ca23b69f02 /drivers/gpu/drm/drm_auth.c
parentdrm/amdgpu: use idr_init_base() to initialize fpriv->bo_list_handles (diff)
downloadkernel-a49afeb4165361819b92b7991b97457bac4c674c.tar.gz
kernel-a49afeb4165361819b92b7991b97457bac4c674c.zip
drm: use idr_init_base() to initialize master->magic_map
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 <[email protected]> Signed-off-by: Maxime Ripard <[email protected]> Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'drivers/gpu/drm/drm_auth.c')
-rw-r--r--drivers/gpu/drm/drm_auth.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_auth.c b/drivers/gpu/drm/drm_auth.c
index 6e433d465f41..63395bebaa6b 100644
--- a/drivers/gpu/drm/drm_auth.c
+++ b/drivers/gpu/drm/drm_auth.c
@@ -140,7 +140,7 @@ struct drm_master *drm_master_create(struct drm_device *dev)
kref_init(&master->refcount);
drm_master_legacy_init(master);
- idr_init(&master->magic_map);
+ idr_init_base(&master->magic_map, 1);
master->dev = dev;
/* initialize the tree of output resource lessees */