diff options
| author | Deepak R Varma <mh12gx2825@gmail.com> | 2020-11-06 01:51:35 +0530 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2020-11-06 11:48:43 +0100 |
| commit | 1528bfcfeb5b5dc6edbaba061185b5ff9b73bf96 (patch) | |
| tree | 66563cff2bca69a0997c21889728e98407da5f3b /drivers/gpu/drm/vc4/vc4_perfmon.c | |
| parent | 5088d6572e8ff6c25433858a4e701aa0fd9364c0 (diff) | |
drm/vc4: 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 VC4_PERFMONID_MIN as start value for
ID range and it is #defined to 1. 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 <mh12gx2825@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20201105202135.GA145111@localhost
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_perfmon.c')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_perfmon.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_perfmon.c b/drivers/gpu/drm/vc4/vc4_perfmon.c index f4aa75efd16b..18abc06335c1 100644 --- a/drivers/gpu/drm/vc4/vc4_perfmon.c +++ b/drivers/gpu/drm/vc4/vc4_perfmon.c @@ -77,7 +77,7 @@ struct vc4_perfmon *vc4_perfmon_find(struct vc4_file *vc4file, int id) void vc4_perfmon_open_file(struct vc4_file *vc4file) { mutex_init(&vc4file->perfmon.lock); - idr_init(&vc4file->perfmon.idr); + idr_init_base(&vc4file->perfmon.idr, VC4_PERFMONID_MIN); } static int vc4_perfmon_idr_del(int id, void *elem, void *data) |