Re: [PATCH] base:power:sysfs: Remove redundant attribute runtime_status in runtime_attrs

From: kbuild test robot <lkp@intel.com>
To: chenxiang <chenxiang66@hisilicon.com>,
	rafael@kernel.org, pavel@ucw.cz, sre@kernel.org
Cc: kbuild-all@lists.01.org, john.garry@huawei.com,
	linux-pm@vger.kernel.org, linuxarm@huawei.com,
	Xiang Chen <chenxiang66@hisilicon.com>
Subject: Re: [PATCH] base:power:sysfs: Remove redundant attribute runtime_status in runtime_attrs
Date: Thu, 21 May 2020 21:05:42 +0800	[thread overview]
Message-ID: <202005212049.sWN89Bjc%lkp@intel.com> (raw)
In-Reply-To: <1590053147-32207-1-git-send-email-chenxiang66@hisilicon.com>

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Hi chenxiang,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on pm/linux-next]
[also build test WARNING on pavel-linux-leds/for-next v5.7-rc6 next-20200519]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/chenxiang/base-power-sysfs-Remove-redundant-attribute-runtime_status-in-runtime_attrs/20200521-173130
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
config: arm-eseries_pxa_defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@intel.com>

All warnings (new ones prefixed by >>, old ones prefixed by <<):

In file included from drivers/base/power/sysfs.c:3:
include/linux/device.h:132:26: warning: 'dev_attr_runtime_status' defined but not used [-Wunused-variable]
132 |  struct device_attribute dev_attr_##_name = __ATTR_RO(_name)
|                          ^~~~~~~~~
>> drivers/base/power/sysfs.c:177:8: note: in expansion of macro 'DEVICE_ATTR_RO'
177 | static DEVICE_ATTR_RO(runtime_status);
|        ^~~~~~~~~~~~~~

vim +/DEVICE_ATTR_RO +177 drivers/base/power/sysfs.c

0fcb4eef829449 Alan Stern      2010-07-08  176  
47acbd77e6e481 Andy Shevchenko 2017-11-10 @177  static DEVICE_ATTR_RO(runtime_status);
15bcb91d7e607d Alan Stern      2010-09-25  178  

:::::: The code at line 177 was first introduced by commit
:::::: 47acbd77e6e481abf2f41d3a99cb3762f296b2e6 PM / sysfs: Convert to use DEVICE_ATTR_RO / DEVICE_ATTR_RW

:::::: TO: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
:::::: CC: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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