linux-kernel - Re: [PATCH v3 4/5] freeze: Add error reporting

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Message-ID: <201606091239.F8WiEKuP%fengguang.wu@intel.com>
Date:	Thu, 9 Jun 2016 12:14:45 +0800
From:	kbuild test robot <lkp@...el.com>
To:	dbasehore@...omium.org
Cc:	kbuild-all@...org, linux-kernel@...r.kernel.org,
	dbasehore@...omium.org, linux-pm@...r.kernel.org,
	rjw@...ysocki.net, pavel@....cz, len.brown@...el.com,
	tglx@...utronix.de, gnomes@...rguk.ukuu.org.uk,
	peterz@...radead.org
Subject: Re: [PATCH v3 4/5] freeze: Add error reporting

Hi,

[auto build test WARNING on pm/linux-next]
[also build test WARNING on v4.7-rc2 next-20160608]
[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/dbasehore-chromium-org/Add-suspend-to-idle-validation-for-Intel-SoCs/20160609-111421
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
config: x86_64-randconfig-s3-06091046 (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=x86_64 

All warnings (new ones prefixed by >>):

>> drivers/cpuidle/cpuidle.c:37:12: warning: 'cpuidle_freeze_error' defined but not used [-Wunused-variable]
    static int cpuidle_freeze_error;
               ^~~~~~~~~~~~~~~~~~~~

vim +/cpuidle_freeze_error +37 drivers/cpuidle/cpuidle.c

    21	#include <linux/module.h>
    22	#include <linux/suspend.h>
    23	#include <linux/tick.h>
    24	#include <trace/events/power.h>
    25	
    26	#include "cpuidle.h"
    27	
    28	DEFINE_PER_CPU(struct cpuidle_device *, cpuidle_devices);
    29	DEFINE_PER_CPU(struct cpuidle_device, cpuidle_dev);
    30	
    31	DEFINE_MUTEX(cpuidle_lock);
    32	LIST_HEAD(cpuidle_detected_devices);
    33	
    34	static int enabled_devices;
    35	static int off __read_mostly;
    36	static int initialized __read_mostly;
  > 37	static int cpuidle_freeze_error;
    38	
    39	int cpuidle_disabled(void)
    40	{
    41		return off;
    42	}
    43	void disable_cpuidle(void)
    44	{
    45		off = 1;

---
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" (25981 bytes)