From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chen Gang Subject: [PATCH v2] arch: s390: kernel: scan all present cpu forcely. Date: Thu, 27 Jun 2013 10:43:02 +0800 Message-ID: <51CBA6B6.1010809@asianux.com> References: <51C8F685.6000209@asianux.com> <20130625064832.GA4999@osiris> <51C94599.1020707@asianux.com> <20130625090928.GA8981@osiris> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: Received: from intranet.asianux.com ([58.214.24.6]:60999 "EHLO intranet.asianux.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751799Ab3F0Cnz (ORCPT ); Wed, 26 Jun 2013 22:43:55 -0400 In-Reply-To: <20130625090928.GA8981@osiris> Sender: linux-arch-owner@vger.kernel.org List-ID: To: Heiko Carstens Cc: Martin Schwidefsky , linux390@de.ibm.com, cornelia.huck@de.ibm.com, mtosatti@redhat.com, Thomas Gleixner , linux-s390@vger.kernel.org, "linux-kernel@vger.kernel.org" , Linux-Arch The architectures which may support 'hotpluggable', can scan all cpus during subsys_initcall(). the upper caller will skip the return value. It also can initialize hotpluggable flag of all cpus in time, no matter whether any cpus fail or not. Signed-off-by: Chen Gang --- arch/s390/kernel/smp.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index d386c4e..75a118f 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -1064,8 +1064,9 @@ static int __init s390_smp_init(void) #endif for_each_present_cpu(cpu) { rc = smp_add_present_cpu(cpu); - if (rc) - return rc; + if (unlikely(rc)) + printk(KERN_WARNING "%s: add cpu %d failed (%d)\n", + __func__, cpu, rc); } return 0; } -- 1.7.7.6