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

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Date:	Thu, 31 Mar 2016 22:40:13 -0700
From:	Lianwei Wang <lianwei.wang@...il.com>
To:	kbuild test robot <lkp@...el.com>
Cc:	kbuild-all@...org, mingo@...nel.org, rjw@...ysocki.net,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] smp: make wake up idle cpus more generic

Sorry, my fault. I made a typo mistake when sending the patch. I will
fix it and resend the patch.

On Thu, Mar 31, 2016 at 1:24 AM, kbuild test robot <lkp@...el.com> wrote:
> 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