linux-kernel - Re: [PATCH v4 3/4] OPP: Add support of "opp-microwatt" for advanced EM registration

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Date:   Wed, 2 Mar 2022 00:58:10 +0800
From:   kernel test robot <lkp@...el.com>
To:     Lukasz Luba <lukasz.luba@....com>, linux-kernel@...r.kernel.org
Cc:     kbuild-all@...ts.01.org, lukasz.luba@....com,
        dietmar.eggemann@....com, viresh.kumar@...aro.org,
        rafael@...nel.org, daniel.lezcano@...aro.org, nm@...com,
        sboyd@...nel.org, mka@...omium.org, dianders@...omium.org,
        robh+dt@...nel.org, devicetree@...r.kernel.org,
        linux-pm@...r.kernel.org
Subject: Re: [PATCH v4 3/4] OPP: Add support of "opp-microwatt" for advanced
 EM registration

Hi Lukasz,

I love your patch! Yet something to improve:

[auto build test ERROR on robh/for-next]
[also build test ERROR on linux/master rafael-pm/linux-next linus/master v5.17-rc6 next-20220301]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Lukasz-Luba/Introduce-opp-microwatt-and-Energy-Model-from-DT/20220301-173700
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
config: arc-randconfig-r014-20220301 (https://download.01.org/0day-ci/archive/20220302/202203020012.g7rYUP7M-lkp@intel.com/config)
compiler: arceb-elf-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/e1e83de9bf2f261cb3e5eb9f53bde3c83c6e0647
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Lukasz-Luba/Introduce-opp-microwatt-and-Energy-Model-from-DT/20220301-173700
        git checkout e1e83de9bf2f261cb3e5eb9f53bde3c83c6e0647
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arc SHELL=/bin/bash drivers/

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

All errors (new ones prefixed by >>):

   drivers/opp/of.c: In function 'dev_pm_opp_of_register_em':
>> drivers/opp/of.c:1572:22: error: 'struct em_data_callback' has no member named 'active_power'
    1572 |                 em_cb.active_power = _get_dt_power;
         |                      ^


vim +1572 drivers/opp/of.c

  1540	
  1541	/**
  1542	 * dev_pm_opp_of_register_em() - Attempt to register an Energy Model
  1543	 * @dev		: Device for which an Energy Model has to be registered
  1544	 * @cpus	: CPUs for which an Energy Model has to be registered. For
  1545	 *		other type of devices it should be set to NULL.
  1546	 *
  1547	 * This checks whether the "dynamic-power-coefficient" devicetree property has
  1548	 * been specified, and tries to register an Energy Model with it if it has.
  1549	 * Having this property means the voltages are known for OPPs and the EM
  1550	 * might be calculated.
  1551	 */
  1552	int dev_pm_opp_of_register_em(struct device *dev, struct cpumask *cpus)
  1553	{
  1554		struct em_data_callback em_cb = EM_DATA_CB(_get_power);
  1555		struct device_node *np;
  1556		int ret, nr_opp;
  1557		u32 cap;
  1558	
  1559		if (IS_ERR_OR_NULL(dev)) {
  1560			ret = -EINVAL;
  1561			goto failed;
  1562		}
  1563	
  1564		nr_opp = dev_pm_opp_get_opp_count(dev);
  1565		if (nr_opp <= 0) {
  1566			ret = -EINVAL;
  1567			goto failed;
  1568		}
  1569	
  1570		/* First, try to find more precised Energy Model in DT */
  1571		if (_of_has_opp_microwatt_property(dev)) {
> 1572			em_cb.active_power = _get_dt_power;

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