Re: [PATCH v4 2/2] cpuidle: allow setting deepest idle

From: kbuild test robot <lkp@intel.com>
To: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: kbuild-all@01.org, Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	LKML <linux-kernel@vger.kernel.org>,
	Linux PM <linux-pm@vger.kernel.org>,
	Arjan van de Ven <arjan@linux.intel.com>,
	Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
	Len Brown <lenb@kernel.org>,
	Rafael Wysocki <rafael.j.wysocki@intel.com>,
	Eduardo Valentin <edubezval@gmail.com>,
	Zhang Rui <rui.zhang@intel.com>, Petr Mladek <pmladek@suse.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Jacob Pan <jacob.jun.pan@linux.intel.com>
Subject: Re: [PATCH v4 2/2] cpuidle: allow setting deepest idle
Date: Tue, 29 Nov 2016 08:59:27 +0800	[thread overview]
Message-ID: <201611290846.PLw3cMGf%fengguang.wu@intel.com> (raw)
In-Reply-To: <1480368809-23685-3-git-send-email-jacob.jun.pan@linux.intel.com>

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Hi Jacob,

[auto build test ERROR on tip/sched/core]
[also build test ERROR on v4.9-rc7 next-20161128]
[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/Jacob-Pan/Stop-sched-tick-in-idle-injection-task/20161129-062641
config: sh-sh7785lcr_32bit_defconfig (attached as .config)
compiler: sh4-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=sh 

All errors (new ones prefixed by >>):

   kernel/built-in.o: In function `cpuidle_idle_call':
>> kernel/sched/idle.c:197: undefined reference to `cpuidle_find_deepest_state'

vim +197 kernel/sched/idle.c

37352273 Peter Zijlstra 2014-04-11  191  exit_idle:
8ca3c642 Daniel Lezcano 2014-03-03  192  	__current_set_polling();
8ca3c642 Daniel Lezcano 2014-03-03  193  
a1d028bd Daniel Lezcano 2014-03-03  194  	/*
37352273 Peter Zijlstra 2014-04-11  195  	 * It is up to the idle functions to reenable local interrupts
a1d028bd Daniel Lezcano 2014-03-03  196  	 */
c8cc7d4d Daniel Lezcano 2014-03-03 @197  	if (WARN_ON_ONCE(irqs_disabled()))
c8cc7d4d Daniel Lezcano 2014-03-03  198  		local_irq_enable();
c8cc7d4d Daniel Lezcano 2014-03-03  199  
c8cc7d4d Daniel Lezcano 2014-03-03  200  	rcu_idle_exit();

:::::: The code at line 197 was first introduced by commit
:::::: c8cc7d4de7a4f2fb1f8774ec2de5b49c46c42e64 sched/idle: Reorganize the idle loop

:::::: TO: Daniel Lezcano <daniel.lezcano@linaro.org>
:::::: CC: Ingo Molnar <mingo@kernel.org>

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