[PATCH v2 3/4] powerpc/watchdog: introduce a LPM factor

[kernel test robot]

Hi Laurent,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on powerpc/next]
[also build test ERROR on linus/master v5.19-rc3 next-20220621]
[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/intel-lab-lkp/linux/commits/Laurent-Dufour/Extending-NMI-watchdog-during-LPM/20220614-215716
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-mgcoge_defconfig (https://download.01.org/0day-ci/archive/20220622/202206221732.AujJ8kWm-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 11.3.0
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/intel-lab-lkp/linux/commit/368bca30c0737461c2ed32a788293018c25fc9c7
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Laurent-Dufour/Extending-NMI-watchdog-during-LPM/20220614-215716
        git checkout 368bca30c0737461c2ed32a788293018c25fc9c7
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/kernel/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp at intel.com>

All errors (new ones prefixed by >>):

   In file included from arch/powerpc/kernel/traps.c:69:
>> arch/powerpc/include/asm/nmi.h:11:13: error: 'watchdog_nmi_set_lpm_factor' defined but not used [-Werror=unused-function]
      11 | static void watchdog_nmi_set_lpm_factor(u64 factor) {}
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +/watchdog_nmi_set_lpm_factor +11 arch/powerpc/include/asm/nmi.h

     4	
     5	#ifdef CONFIG_PPC_WATCHDOG
     6	extern void arch_touch_nmi_watchdog(void);
     7	long soft_nmi_interrupt(struct pt_regs *regs);
     8	void watchdog_nmi_set_lpm_factor(u64 factor);
     9	#else
    10	static inline void arch_touch_nmi_watchdog(void) {}
  > 11	static void watchdog_nmi_set_lpm_factor(u64 factor) {}
    12	#endif
    13	

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