drm/i915/pmu: Remove pointless synchronize_rcu() call

This is already done inside perf_pmu_unregister() - no need to do it
before.

Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241104213512.2314930-5-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

diff --git a/drivers/gpu/drm/i915/i915_pmu.c b/drivers/gpu/drm/i915/i915_pmu.c
index bd476297ed0a13ba6b6dc76cdaec5d182c7aebb8..e55db036be1bba49f833e23ed68ec405b7734f2a 100644 (file)
--- a/drivers/gpu/drm/i915/i915_pmu.c
+++ b/drivers/gpu/drm/i915/i915_pmu.c
@@ -1335,13 +1335,8 @@ void i915_pmu_unregister(struct drm_i915_private *i915)
        if (!pmu->registered)
                return;
 
-       /*
-        * "Disconnect" the PMU callbacks - since all are atomic synchronize_rcu
-        * ensures all currently executing ones will have exited before we
-        * proceed with unregistration.
-        */
+       /* Disconnect the PMU callbacks */
        pmu->registered = false;
-       synchronize_rcu();
 
        hrtimer_cancel(&pmu->timer);