tree: https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git devfreq-testing head: 5857e3d1820d85e10321ec180ed88e780fd0ec3e commit: d678890dcdf858c25d2789793a35a81c4311e972 [2/4] PM / devfreq: Add cpu based scaling support to passive governor config: um-allyesconfig (https://download.01.org/0day-ci/archive/20211211/202112111116.n71rjgZH-lk...) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git/commit/... git remote add chanwoo https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git git fetch --no-tags chanwoo devfreq-testing git checkout d678890dcdf858c25d2789793a35a81c4311e972 # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=um SHELL=/bin/bash drivers/devfreq/ drivers/memory/samsung/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): In file included from arch/x86/um/asm/processor.h:41, from include/linux/spinlock_up.h:8, from include/linux/spinlock.h:95, from include/linux/mmzone.h:8, from include/linux/gfp.h:6, from include/linux/umh.h:4, from include/linux/kmod.h:9, from drivers/devfreq/devfreq.c:11: arch/um/include/asm/processor-generic.h:104:19: error: expected identifier or '(' before '&' token 104 | #define cpu_data (&boot_cpu_data) | ^ include/linux/devfreq.h:331:27: note: in expansion of macro 'cpu_data' 331 | struct devfreq_cpu_data *cpu_data[NR_CPUS]; | ^~~~~~~~ In file included from include/linux/devfreq_cooling.h:13, from drivers/devfreq/devfreq.c:14: 332 | }; | ^ -- In file included from arch/x86/um/asm/processor.h:41, from include/linux/spinlock_up.h:8, from include/linux/spinlock.h:95, from include/linux/mm_types.h:9, from include/linux/buildid.h:5, from include/linux/module.h:14, from drivers/devfreq/governor_passive.c:10: arch/um/include/asm/processor-generic.h:104:19: error: expected identifier or '(' before '&' token 104 | #define cpu_data (&boot_cpu_data) | ^ include/linux/devfreq.h:331:27: note: in expansion of macro 'cpu_data' 331 | struct devfreq_cpu_data *cpu_data[NR_CPUS]; | ^~~~~~~~ In file included from drivers/devfreq/governor_passive.c:16: 332 | }; | ^ In file included from arch/x86/um/asm/processor.h:41, from include/linux/spinlock_up.h:8, from include/linux/spinlock.h:95, from include/linux/mm_types.h:9, from include/linux/buildid.h:5, from include/linux/module.h:14, from drivers/devfreq/governor_passive.c:10: drivers/devfreq/governor_passive.c: In function 'get_target_freq_with_cpufreq': arch/um/include/asm/processor-generic.h:104:18: error: expected identifier before '(' token 104 | #define cpu_data (&boot_cpu_data) | ^ drivers/devfreq/governor_passive.c:58:29: note: in expansion of macro 'cpu_data' 58 | parent_cpu_data = p_data->cpu_data[cpu]; | ^~~~~~~~ 50 | struct devfreq_passive_data *p_data = | ^~~~~~ In file included from arch/x86/um/asm/processor.h:41, from include/linux/spinlock_up.h:8, from include/linux/spinlock.h:95, from include/linux/mm_types.h:9, from include/linux/buildid.h:5, from include/linux/module.h:14, from drivers/devfreq/governor_passive.c:10: drivers/devfreq/governor_passive.c: In function 'cpufreq_passive_notifier_call': arch/um/include/asm/processor-generic.h:104:18: error: expected identifier before '(' token 104 | #define cpu_data (&boot_cpu_data) | ^ drivers/devfreq/governor_passive.c:221:10: note: in expansion of macro 'cpu_data' 221 | !data->cpu_data[freqs->policy->cpu]) | ^~~~~~~~ arch/um/include/asm/processor-generic.h:104:18: error: expected identifier before '(' token 104 | #define cpu_data (&boot_cpu_data) | ^ drivers/devfreq/governor_passive.c:224:26: note: in expansion of macro 'cpu_data' 224 | parent_cpu_data = data->cpu_data[freqs->policy->cpu]; | ^~~~~~~~ drivers/devfreq/governor_passive.c: In function 'cpufreq_passive_unregister_notifier': arch/um/include/asm/processor-generic.h:104:18: error: expected identifier before '(' token 104 | #define cpu_data (&boot_cpu_data) | ^ drivers/devfreq/governor_passive.c:258:29: note: in expansion of macro 'cpu_data' 258 | parent_cpu_data = p_data->cpu_data[cpu]; | ^~~~~~~~ drivers/devfreq/governor_passive.c: In function 'cpufreq_passive_register_notifier': arch/um/include/asm/processor-generic.h:104:18: error: expected identifier before '(' token 104 | #define cpu_data (&boot_cpu_data) | ^ drivers/devfreq/governor_passive.c:291:15: note: in expansion of macro 'cpu_data' 291 | if (p_data->cpu_data[cpu]) | ^~~~~~~~ arch/um/include/asm/processor-generic.h:104:18: error: expected identifier before '(' token 104 | #define cpu_data (&boot_cpu_data) | ^ drivers/devfreq/governor_passive.c:331:11: note: in expansion of macro 'cpu_data' 331 | p_data->cpu_data[cpu] = parent_cpu_data; | ^~~~~~~~ vim +332 include/linux/devfreq.h d678890dcdf858 Saravana Kannan 2021-03-02 296 996133119f5733 Chanwoo Choi 2016-03-22 297 /** 7a51320ecd3942 Mauro Carvalho Chehab 2020-03-17 298 * struct devfreq_passive_data - ``void *data`` fed to struct devfreq 996133119f5733 Chanwoo Choi 2016-03-22 299 * and devfreq_add_device 996133119f5733 Chanwoo Choi 2016-03-22 300 * @parent: the devfreq instance of parent device. 996133119f5733 Chanwoo Choi 2016-03-22 301 * @get_target_freq: Optional callback, Returns desired operating frequency 996133119f5733 Chanwoo Choi 2016-03-22 302 * for the device using passive governor. That is called 996133119f5733 Chanwoo Choi 2016-03-22 303 * when passive governor should decide the next frequency 996133119f5733 Chanwoo Choi 2016-03-22 304 * by using the new frequency of parent devfreq device 996133119f5733 Chanwoo Choi 2016-03-22 305 * using governors except for passive governor. 996133119f5733 Chanwoo Choi 2016-03-22 306 * If the devfreq device has the specific method to decide 996133119f5733 Chanwoo Choi 2016-03-22 307 * the next frequency, should use this callback. d678890dcdf858 Saravana Kannan 2021-03-02 308 + * @parent_type parent type of the device d678890dcdf858 Saravana Kannan 2021-03-02 309 + * @this: the devfreq instance of own device. d678890dcdf858 Saravana Kannan 2021-03-02 310 + * @nb: the notifier block for DEVFREQ_TRANSITION_NOTIFIER list d678890dcdf858 Saravana Kannan 2021-03-02 311 + * @cpu_data: the state min/max/current frequency of all online cpu's 996133119f5733 Chanwoo Choi 2016-03-22 312 * 996133119f5733 Chanwoo Choi 2016-03-22 313 * The devfreq_passive_data have to set the devfreq instance of parent 996133119f5733 Chanwoo Choi 2016-03-22 314 * device with governors except for the passive governor. But, don't need to 996133119f5733 Chanwoo Choi 2016-03-22 315 * initialize the 'this' and 'nb' field because the devfreq core will handle 996133119f5733 Chanwoo Choi 2016-03-22 316 * them. 996133119f5733 Chanwoo Choi 2016-03-22 317 */ 996133119f5733 Chanwoo Choi 2016-03-22 318 struct devfreq_passive_data { 996133119f5733 Chanwoo Choi 2016-03-22 319 /* Should set the devfreq instance of parent device */ 996133119f5733 Chanwoo Choi 2016-03-22 320 struct devfreq *parent; 996133119f5733 Chanwoo Choi 2016-03-22 321 996133119f5733 Chanwoo Choi 2016-03-22 322 /* Optional callback to decide the next frequency of passvice device */ 996133119f5733 Chanwoo Choi 2016-03-22 323 int (*get_target_freq)(struct devfreq *this, unsigned long *freq); 996133119f5733 Chanwoo Choi 2016-03-22 324 d678890dcdf858 Saravana Kannan 2021-03-02 325 /* Should set the type of parent device */ d678890dcdf858 Saravana Kannan 2021-03-02 326 enum devfreq_parent_dev_type parent_type; d678890dcdf858 Saravana Kannan 2021-03-02 327 996133119f5733 Chanwoo Choi 2016-03-22 328 /* For passive governor's internal use. Don't need to set them */ 996133119f5733 Chanwoo Choi 2016-03-22 329 struct devfreq *this; 996133119f5733 Chanwoo Choi 2016-03-22 330 struct notifier_block nb; d678890dcdf858 Saravana Kannan 2021-03-02 331 struct devfreq_cpu_data *cpu_data[NR_CPUS]; 996133119f5733 Chanwoo Choi 2016-03-22 @332 }; 996133119f5733 Chanwoo Choi 2016-03-22 333 #endif 996133119f5733 Chanwoo Choi 2016-03-22 334 :::::: The code at line 332 was first introduced by commit :::::: 996133119f57334c38b020dbfaaac5b5eb127e29 PM / devfreq: Add new passive governor :::::: TO: Chanwoo Choi <cw00.choi(a)samsung.com&gt; :::::: CC: MyungJoo Ham <myungjoo.ham(a)samsung.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org