idr_init() uses base 0 which is an invalid identifier. 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.
References: commit 6ce711f27500 ("idr: Make 1-based IDRs more efficient")
Signed-off-by: Deepak R Varma mh12gx2825@gmail.com --- drivers/gpu/drm/i915/i915_perf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c index e94976976571..2d033255b7cf 100644 --- a/drivers/gpu/drm/i915/i915_perf.c +++ b/drivers/gpu/drm/i915/i915_perf.c @@ -4367,7 +4367,7 @@ void i915_perf_init(struct drm_i915_private *i915) RUNTIME_INFO(i915)->cs_timestamp_frequency_hz / 2;
mutex_init(&perf->metrics_lock); - idr_init(&perf->metrics_idr); + idr_init_base(&perf->metrics_idr, 1);
/* We set up some ratelimit state to potentially throttle any * _NOTES about spurious, invalid OA reports which we don't