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Date: Fri, 17 Jun 2016 00:22:50 +0800
From: kbuild test robot <lkp@intel.com>
To: riel@redhat.com
Cc: kbuild-all@01.org, linux-kernel@vger.kernel.org, mingo@kernel.org,
        pbonzini@redhat.com, peterz@infradead.org, fweisbec@gmail.com,
        wanpeng.li@hotmail.com, efault@gmx.de, tglx@linutronix.de,
        rkrcmar@redhat.com
Subject: Re: [PATCH 1/5] sched,time: count actually elapsed irq & softirq time
Message-ID: <201606170048.Y3qTWWze%fengguang.wu@intel.com>
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Hi,

[auto build test ERROR on tip/sched/core]
[also build test ERROR on next-20160616]
[cannot apply to v4.7-rc3]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/riel-redhat-com/sched-time-fix-irq-time-accounting-with-nohz_idle/20160617-001150
config: i386-tinyconfig (attached as .config)
compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

Note: the linux-review/riel-redhat-com/sched-time-fix-irq-time-accounting-with-nohz_idle/20160617-001150 HEAD cc827b6bc02ef052d79b5dbd2c355d9483a8ada7 builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

   kernel/sched/cputime.c: In function 'account_other_ticks':
>> kernel/sched/cputime.c:299:16: error: implicit declaration of function 'irqtime_account_hi_update' [-Werror=implicit-function-declaration]
      accounted += irqtime_account_hi_update(max_jiffies - accounted);
                   ^~~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/sched/cputime.c:302:16: error: implicit declaration of function 'irqtime_account_si_update' [-Werror=implicit-function-declaration]
      accounted += irqtime_account_si_update(max_jiffies - accounted);
                   ^~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/irqtime_account_hi_update +299 kernel/sched/cputime.c

   293	{
   294		unsigned long accounted;
   295	
   296		accounted = steal_account_process_tick(max_jiffies);
   297	
   298		if (accounted < max_jiffies)
 > 299			accounted += irqtime_account_hi_update(max_jiffies - accounted);
   300	
   301		if (accounted < max_jiffies)
 > 302			accounted += irqtime_account_si_update(max_jiffies - accounted);
   303	
   304		return accounted;
   305	}

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

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