From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 22 Feb 2016 22:19:08 +0000 (+0000)
Subject: perf/x86/intel/uncore: Remove pointless mask check
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3ccca9eca67ec68461a5266832d02aee538599b2;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

perf/x86/intel/uncore: Remove pointless mask check

uncore_cpumask_init() is only ever called from intel_uncore_init() where the
mask is guaranteed to be empty.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andi Kleen <andi.kleen@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Harish Chegondi <harish.chegondi@intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: linux-kernel@vger.kernel.org
Link: http://lkml.kernel.org/r/20160222221010.657326866@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---

diff --git a/arch/x86/events/intel/uncore.c b/arch/x86/events/intel/uncore.c
index 91a18d6c4405..c422d52ecefa 100644
--- a/arch/x86/events/intel/uncore.c
+++ b/arch/x86/events/intel/uncore.c
@@ -1342,12 +1342,6 @@ static void __init uncore_cpumask_init(void)
 {
 	int cpu;
 
-	/*
-	 * ony invoke once from msr or pci init code
-	 */
-	if (!cpumask_empty(&uncore_cpu_mask))
-		return;
-
 	cpu_notifier_register_begin();
 
 	for_each_online_cpu(cpu) {