linux-kernel - [tip:perf/core] perf/x86/intel/uncore: Remove pointless mask check

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Date:	Mon, 29 Feb 2016 03:03:34 -0800
From:	tip-bot for Thomas Gleixner <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	bp@...en8.de, harish.chegondi@...el.com,
	linux-kernel@...r.kernel.org, eranian@...gle.com, hpa@...or.com,
	andi.kleen@...el.com, kan.liang@...el.com,
	torvalds@...ux-foundation.org, tglx@...utronix.de,
	mingo@...nel.org, jolsa@...hat.com, peterz@...radead.org,
	vincent.weaver@...ne.edu, acme@...hat.com,
	jacob.jun.pan@...ux.intel.com
Subject: [tip:perf/core] perf/x86/intel/uncore: Remove pointless mask check

Commit-ID:  3ccca9eca67ec68461a5266832d02aee538599b2
Gitweb:     http://git.kernel.org/tip/3ccca9eca67ec68461a5266832d02aee538599b2
Author:     Thomas Gleixner <tglx@...utronix.de>
AuthorDate: Mon, 22 Feb 2016 22:19:08 +0000
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Mon, 29 Feb 2016 09:35:12 +0100

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@...utronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Cc: Andi Kleen <andi.kleen@...el.com>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Harish Chegondi <harish.chegondi@...el.com>
Cc: Jacob Pan <jacob.jun.pan@...ux.intel.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Kan Liang <kan.liang@...el.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Stephane Eranian <eranian@...gle.com>
Cc: Vince Weaver <vincent.weaver@...ne.edu>
Cc: linux-kernel@...r.kernel.org
Link: http://lkml.kernel.org/r/20160222221010.657326866@linutronix.de
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/x86/events/intel/uncore.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/arch/x86/events/intel/uncore.c b/arch/x86/events/intel/uncore.c
index 91a18d6..c422d52e 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) {