From: Kan Liang Date: Tue, 20 May 2025 18:16:42 +0000 (-0700) Subject: sparc/perf: Remove driver-specific throttle support X-Git-Tag: v6.16-rc1~196^2~5 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e4806c17bfd5d6f4363557854cbace786311d527;p=thirdparty%2Fkernel%2Flinux.git sparc/perf: Remove driver-specific throttle support The throttle support has been added in the generic code. Remove the driver-specific throttle support. Besides the throttle, perf_event_overflow may return true because of event_limit. It already does an inatomic event disable. The pmu->stop is not required either. Signed-off-by: Kan Liang Signed-off-by: Peter Zijlstra (Intel) Link: https://lore.kernel.org/r/20250520181644.2673067-15-kan.liang@linux.intel.com --- diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c index f02a283a8e8f0..cae4d33002a54 100644 --- a/arch/sparc/kernel/perf_event.c +++ b/arch/sparc/kernel/perf_event.c @@ -1668,8 +1668,7 @@ static int __kprobes perf_event_nmi_handler(struct notifier_block *self, if (!sparc_perf_event_set_period(event, hwc, idx)) continue; - if (perf_event_overflow(event, &data, regs)) - sparc_pmu_stop(event, 0); + perf_event_overflow(event, &data, regs); } finish_clock = sched_clock();