Re: [PATCH 1/1] [RFC] wakeup_reason: Add infrastructure to log and report why the system resumed from suspend.

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

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Hi Zichar,

[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on rafael-pm/linux-next]
[also build test WARNING on linux/master linus/master v5.17-rc1 next-20220127]
[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/Zichar-Zhang/wakeup_reason-Add-infrastructure-to-log-and-report-why-the-system-resumed-from-suspend/20220128-125627
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
config: riscv-allmodconfig (https://download.01.org/0day-ci/archive/20220128/202201281421.yoAJA4z1-lkp(a)intel.com/config)
compiler: riscv64-linux-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/b932c9637e3e3a14497ff60caedfc67608d93c13
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Zichar-Zhang/wakeup_reason-Add-infrastructure-to-log-and-report-why-the-system-resumed-from-suspend/20220128-125627
        git checkout b932c9637e3e3a14497ff60caedfc67608d93c13
        # 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=riscv SHELL=/bin/bash kernel/

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

All warnings (new ones prefixed by >>):

   In file included from kernel/power/main.c:19:
>> include/linux/wakeup_reason.h:29:9: warning: no previous prototype for 'log_ws_wakeup_reason' [-Wmissing-prototypes]
      29 | ssize_t log_ws_wakeup_reason(void) { }
         |         ^~~~~~~~~~~~~~~~~~~~
>> include/linux/wakeup_reason.h:30:9: warning: no previous prototype for 'log_irq_wakeup_reason' [-Wmissing-prototypes]
      30 | ssize_t log_irq_wakeup_reason(unsigned int irq_number) { }
         |         ^~~~~~~~~~~~~~~~~~~~~
>> include/linux/wakeup_reason.h:31:6: warning: no previous prototype for 'clear_wakeup_reason' [-Wmissing-prototypes]
      31 | void clear_wakeup_reason(void) { }
         |      ^~~~~~~~~~~~~~~~~~~
>> include/linux/wakeup_reason.h:32:9: warning: no previous prototype for 'last_wakeup_reason_get' [-Wmissing-prototypes]
      32 | ssize_t last_wakeup_reason_get(char *buf, ssize_t max) { }
         |         ^~~~~~~~~~~~~~~~~~~~~~
   include/linux/wakeup_reason.h: In function 'log_ws_wakeup_reason':
   include/linux/wakeup_reason.h:29:38: error: control reaches end of non-void function [-Werror=return-type]
      29 | ssize_t log_ws_wakeup_reason(void) { }
         |                                      ^
   include/linux/wakeup_reason.h: In function 'log_irq_wakeup_reason':
   include/linux/wakeup_reason.h:30:58: error: control reaches end of non-void function [-Werror=return-type]
      30 | ssize_t log_irq_wakeup_reason(unsigned int irq_number) { }
         |                                                          ^
   include/linux/wakeup_reason.h: In function 'last_wakeup_reason_get':
   include/linux/wakeup_reason.h:32:58: error: control reaches end of non-void function [-Werror=return-type]
      32 | ssize_t last_wakeup_reason_get(char *buf, ssize_t max) { }
         |                                                          ^
   cc1: some warnings being treated as errors


vim +/log_ws_wakeup_reason +29 include/linux/wakeup_reason.h

    22	
    23	#ifdef CONFIG_SUSPEND
    24	ssize_t log_ws_wakeup_reason(void);
    25	ssize_t log_irq_wakeup_reason(unsigned int irq_number);
    26	void clear_wakeup_reason(void);
    27	ssize_t last_wakeup_reason_get(char *buf, ssize_t max);
    28	#else
  > 29	ssize_t log_ws_wakeup_reason(void) { }
  > 30	ssize_t log_irq_wakeup_reason(unsigned int irq_number) { }
  > 31	void clear_wakeup_reason(void) { }
  > 32	ssize_t last_wakeup_reason_get(char *buf, ssize_t max) { }
    33	#endif
    34	

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