Messages in this thread | | | Date | Thu, 30 Sep 2021 02:43:37 +0800 | From | kernel test robot <> | Subject | Re: [PATCH v2] PM: Kconfig: fix unmet dependency for PM_SLEEP_SMP |
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Hi Necip,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on linus/master] [also build test ERROR on v5.15-rc3 next-20210922] [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/Necip-Fazil-Yildiran/PM-Kconfig-fix-unmet-dependency-for-PM_SLEEP_SMP/20210929-162901 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git a4e6f95a891ac08bd09d62e3e6dae239b150f4c1 config: i386-randconfig-c001-20210929 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project dc6e8dfdfe7efecfda318d43a06fae18b40eb498) 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/761d2cbd7ffe7612fdc9084465070e008edd48a7 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Necip-Fazil-Yildiran/PM-Kconfig-fix-unmet-dependency-for-PM_SLEEP_SMP/20210929-162901 git checkout 761d2cbd7ffe7612fdc9084465070e008edd48a7 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=i386
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
>> arch/x86/power/cpu.c:313:8: error: implicit declaration of function 'freeze_secondary_cpus' [-Werror,-Wimplicit-function-declaration] ret = freeze_secondary_cpus(0); ^ arch/x86/power/cpu.c:313:8: note: did you mean 'thaw_secondary_cpus'? include/linux/cpu.h:165:20: note: 'thaw_secondary_cpus' declared here static inline void thaw_secondary_cpus(void) {} ^ arch/x86/power/cpu.c:288:5: warning: no previous prototype for function 'hibernate_resume_nonboot_cpu_disable' [-Wmissing-prototypes] int hibernate_resume_nonboot_cpu_disable(void) ^ arch/x86/power/cpu.c:288:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int hibernate_resume_nonboot_cpu_disable(void) ^ static 1 warning and 1 error generated.
vim +/freeze_secondary_cpus +313 arch/x86/power/cpu.c
406f992e4a372da Rafael J. Wysocki 2016-07-14 287 406f992e4a372da Rafael J. Wysocki 2016-07-14 288 int hibernate_resume_nonboot_cpu_disable(void) 406f992e4a372da Rafael J. Wysocki 2016-07-14 289 { 406f992e4a372da Rafael J. Wysocki 2016-07-14 290 void (*play_dead)(void) = smp_ops.play_dead; 406f992e4a372da Rafael J. Wysocki 2016-07-14 291 int ret; 406f992e4a372da Rafael J. Wysocki 2016-07-14 292 406f992e4a372da Rafael J. Wysocki 2016-07-14 293 /* 406f992e4a372da Rafael J. Wysocki 2016-07-14 294 * Ensure that MONITOR/MWAIT will not be used in the "play dead" loop 406f992e4a372da Rafael J. Wysocki 2016-07-14 295 * during hibernate image restoration, because it is likely that the 406f992e4a372da Rafael J. Wysocki 2016-07-14 296 * monitored address will be actually written to at that time and then 406f992e4a372da Rafael J. Wysocki 2016-07-14 297 * the "dead" CPU will attempt to execute instructions again, but the 406f992e4a372da Rafael J. Wysocki 2016-07-14 298 * address in its instruction pointer may not be possible to resolve 406f992e4a372da Rafael J. Wysocki 2016-07-14 299 * any more at that point (the page tables used by it previously may 406f992e4a372da Rafael J. Wysocki 2016-07-14 300 * have been overwritten by hibernate image data). ec527c318036a65 Jiri Kosina 2019-05-30 301 * ec527c318036a65 Jiri Kosina 2019-05-30 302 * First, make sure that we wake up all the potentially disabled SMT ec527c318036a65 Jiri Kosina 2019-05-30 303 * threads which have been initially brought up and then put into ec527c318036a65 Jiri Kosina 2019-05-30 304 * mwait/cpuidle sleep. ec527c318036a65 Jiri Kosina 2019-05-30 305 * Those will be put to proper (not interfering with hibernation ec527c318036a65 Jiri Kosina 2019-05-30 306 * resume) sleep afterwards, and the resumed kernel will decide itself ec527c318036a65 Jiri Kosina 2019-05-30 307 * what to do with them. 406f992e4a372da Rafael J. Wysocki 2016-07-14 308 */ ec527c318036a65 Jiri Kosina 2019-05-30 309 ret = cpuhp_smt_enable(); ec527c318036a65 Jiri Kosina 2019-05-30 310 if (ret) ec527c318036a65 Jiri Kosina 2019-05-30 311 return ret; 406f992e4a372da Rafael J. Wysocki 2016-07-14 312 smp_ops.play_dead = resume_play_dead; 565558558985b1d Qais Yousef 2020-04-30 @313 ret = freeze_secondary_cpus(0); 406f992e4a372da Rafael J. Wysocki 2016-07-14 314 smp_ops.play_dead = play_dead; 406f992e4a372da Rafael J. Wysocki 2016-07-14 315 return ret; 406f992e4a372da Rafael J. Wysocki 2016-07-14 316 } 406f992e4a372da Rafael J. Wysocki 2016-07-14 317 #endif 406f992e4a372da Rafael J. Wysocki 2016-07-14 318
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