Re: [RFC 1/6] mmc: core: Parse clk scaling dt entries

[kbuild test robot <lkp@intel.com>]

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Hi Ram,

[FYI, it's a private test report for your RFC patch.]
[auto build test ERROR on linus/master]
[cannot apply to v5.4-rc4 next-20191022]
[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/Ram-Prakash-Gupta/mmc-Add-clock-scaling-support-for-mmc-driver/20191024-121237
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 13b86bc4cd648eae69fdcf3d04b2750c76350053
config: i386-randconfig-f002-201942 (attached as .config)
compiler: gcc-7 (Debian 7.4.0-14) 7.4.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

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

All errors (new ones prefixed by >>):

   In file included from drivers/mmc/core/bus.c:20:0:
>> include/linux/mmc/host.h:310:39: error: field 'ondemand_gov_data' has incomplete type
     struct  devfreq_simple_ondemand_data ondemand_gov_data;
                                          ^~~~~~~~~~~~~~~~~

vim +/ondemand_gov_data +310 include/linux/mmc/host.h

   282	
   283	/**
   284	 * struct mmc_devfeq_clk_scaling - main context for MMC clock scaling logic
   285	 *
   286	 * @lock: spinlock to protect statistics
   287	 * @devfreq: struct that represent mmc-host as a client for devfreq
   288	 * @devfreq_profile: MMC device profile, mostly polling interval and callbacks
   289	 * @ondemand_gov_data: struct supplied to ondemmand governor (thresholds)
   290	 * @state: load state, can be HIGH or LOW. used to notify mmc_host_ops callback
   291	 * @start_busy: timestamped armed once a data request is started
   292	 * @measure_interval_start: timestamped armed once a measure interval started
   293	 * @devfreq_abort: flag to sync between different contexts relevant to devfreq
   294	 * @skip_clk_scale_freq_update: flag that enable/disable frequency change
   295	 * @freq_table_sz: table size of frequencies supplied to devfreq
   296	 * @freq_table: frequencies table supplied to devfreq
   297	 * @curr_freq: current frequency
   298	 * @polling_delay_ms: polling interval for status collection used by devfreq
   299	 * @upthreshold: up-threshold supplied to ondemand governor
   300	 * @downthreshold: down-threshold supplied to ondemand governor
   301	 * @need_freq_change: flag indicating if a frequency change is required
   302	 * @is_busy_started: flag indicating if a request is handled by the HW
   303	 * @enable: flag indicating if the clock scaling logic is enabled for this host
   304	 * @is_suspended: to make devfreq request queued when mmc is suspened
   305	 */
   306	struct mmc_devfeq_clk_scaling {
   307		spinlock_t	lock;
   308		struct		devfreq *devfreq;
   309		struct		devfreq_dev_profile devfreq_profile;
 > 310		struct		devfreq_simple_ondemand_data ondemand_gov_data;
   311		enum mmc_load	state;
   312		ktime_t		start_busy;
   313		ktime_t		measure_interval_start;
   314		atomic_t	devfreq_abort;
   315		bool		skip_clk_scale_freq_update;
   316		int		freq_table_sz;
   317		int		pltfm_freq_table_sz;
   318		u32		*freq_table;
   319		u32		*pltfm_freq_table;
   320		unsigned long	total_busy_time_us;
   321		unsigned long	target_freq;
   322		unsigned long	curr_freq;
   323		unsigned long	polling_delay_ms;
   324		unsigned int	upthreshold;
   325		unsigned int	downthreshold;
   326		unsigned int	lower_bus_speed_mode;
   327	#define MMC_SCALING_LOWER_DDR52_MODE	1
   328		bool		need_freq_change;
   329		bool		is_busy_started;
   330		bool		enable;
   331		bool		is_suspended;
   332	};
   333	

---
0-DAY kernel test infrastructure                Open Source Technology Center
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