linux-kernel - Re: [PATCH] smp: make wake up idle cpus more generic

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Date:	Thu, 31 Mar 2016 16:24:47 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Lianwei Wang <lianwei.wang@...il.com>
Cc:	kbuild-all@...org, mingo@...nel.org, rjw@...ysocki.net,
	daniel.lezcano@...aro.org, linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org, Lianwei Wang <lianwei.wang@...il.com>
Subject: Re: [PATCH] smp: make wake up idle cpus more generic

Hi Lianwei,

[auto build test ERROR on pm/linux-next]
[also build test ERROR on v4.6-rc1 next-20160331]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Lianwei-Wang/smp-make-wake-up-idle-cpus-more-generic/20160331-155548
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
config: i386-randconfig-n0-201613 (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All error/warnings (new ones prefixed by >>):

   drivers/cpuidle/cpuidle.c: In function 'cpuidle_latency_notify':
>> drivers/cpuidle/cpuidle.c:623:37: error: expected ')' before ';' token
     wake_up_idle_cpus((cpu_online_mask);
                                        ^
>> drivers/cpuidle/cpuidle.c:625:1: error: expected ';' before '}' token
    }
    ^
>> drivers/cpuidle/cpuidle.c:625:1: warning: no return statement in function returning non-void [-Wreturn-type]

vim +623 drivers/cpuidle/cpuidle.c

   617	 * and then recalculate a new suitable C-state. Just do a cross-cpu IPI; that
   618	 * wakes them all right up.
   619	 */
   620	static int cpuidle_latency_notify(struct notifier_block *b,
   621			unsigned long l, void *v)
   622	{
 > 623		wake_up_idle_cpus((cpu_online_mask);
   624		return NOTIFY_OK;
 > 625	}
   626	
   627	static struct notifier_block cpuidle_latency_notifier = {
   628		.notifier_call = cpuidle_latency_notify,

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

Download attachment ".config.gz" of type "application/octet-stream" (21634 bytes)