linux-kernel - [tip:perf/core] perf/x86/intel/rapl: Make Knights Landings support functional

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Date:	Mon, 29 Feb 2016 03:09:40 -0800
From:	tip-bot for Thomas Gleixner <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	tglx@...utronix.de, vincent.weaver@...ne.edu,
	linux-kernel@...r.kernel.org, eranian@...gle.com, jolsa@...hat.com,
	mingo@...nel.org, acme@...hat.com, andi.kleen@...el.com,
	peterz@...radead.org, dasaratharaman.chandramouli@...el.com,
	jacob.jun.pan@...ux.intel.com, kan.liang@...el.com,
	harish.chegondi@...el.com, bp@...en8.de, hpa@...or.com,
	torvalds@...ux-foundation.org
Subject: [tip:perf/core] perf/x86/intel/rapl: Make Knights Landings support
 functional

Commit-ID:  4d120c535d638a952e644817ba3cbef30deedb2b
Gitweb:     http://git.kernel.org/tip/4d120c535d638a952e644817ba3cbef30deedb2b
Author:     Thomas Gleixner <tglx@...utronix.de>
AuthorDate: Mon, 22 Feb 2016 22:19:20 +0000
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Mon, 29 Feb 2016 09:35:21 +0100

perf/x86/intel/rapl: Make Knights Landings support functional

The Knights Landings support added the events and the detection case, but then
returns 0 without actually initializing the driver.

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: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@...el.com>
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
Fixes: 3a2a7797326a4 "perf/x86/intel/rapl: Add support for Knights Landing (KNL)"
Link: http://lkml.kernel.org/r/20160222221012.149331888@linutronix.de
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/x86/events/intel/rapl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c
index 580f504..536f0ce 100644
--- a/arch/x86/events/intel/rapl.c
+++ b/arch/x86/events/intel/rapl.c
@@ -731,7 +731,7 @@ static int __init rapl_pmu_init(void)
 		rapl_add_quirk(rapl_hsw_server_quirk);
 		rapl_cntr_mask = RAPL_IDX_KNL;
 		rapl_pmu_events_group.attrs = rapl_events_knl_attr;
-
+		break;
 	default:
 		/* unsupported */
 		return 0;