Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751915AbdIVIrq (ORCPT ); Fri, 22 Sep 2017 04:47:46 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:43854 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751838AbdIVIrp (ORCPT ); Fri, 22 Sep 2017 04:47:45 -0400 From: Abhishek Goel To: trenn@suse.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Abhishek Goel Subject: [PATCH] cpupower : Fix cpupower working when cpu0 is offline Date: Fri, 22 Sep 2017 14:17:32 +0530 X-Mailer: git-send-email 2.9.3 X-TM-AS-MML: disable x-cbid: 17092208-0008-0000-0000-000001587698 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17092208-0009-0000-0000-0000098DE5E9 Message-Id: <20170922084732.119903-1-huntbag@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-09-22_02:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000 definitions=main-1709220122 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1188 Lines: 32 cpuidle_monitor used to assume that cpu0 is always online. Now the cpuidle_monitor function searches for the first online cpu and use it, instead of always using cpu0 which maynot be online. Signed-off-by: Abhishek Goel --- tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c b/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c index 055a4fa..1cfba02 100644 --- a/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c +++ b/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c @@ -132,13 +132,13 @@ static struct cpuidle_monitor *cpuidle_register(void) char *tmp; int first_online_cpu; - for (num = 0; num < cpu_count; num++){ + for (num = 0; num < cpu_count; num++) { if (cpupower_is_cpu_online(num)) break; }; first_online_cpu = num; - - /* Assume idle state count is the same for all CPUs */ + + /* Assume idle state count is the same for all CPUs */ cpuidle_sysfs_monitor.hw_states_num = cpuidle_state_count(first_online_cpu); if (cpuidle_sysfs_monitor.hw_states_num <= 0) -- 2.9.3