Messages in this thread Patch in this message | | | From | Danilo Krummrich <> | Subject | [PATCH RESEND 03/10] drm: use idr_init_base() to initialize master->magic_map | Date | Wed, 20 Jul 2022 15:28:23 +0200 |
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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 <dakr@redhat.com> Acked-by: Christian König <christian.koenig@amd.com> --- drivers/gpu/drm/drm_auth.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
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 */ -- 2.36.1
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