[PATCH v2 05/19] powerpc: interrupt handler wrapper functions

[kernel test robot]

Hi Nicholas,

I love your patch! Perhaps something to improve:

[auto build test WARNING on powerpc/next]
[also build test WARNING on v5.10-rc3 next-20201113]
[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/Nicholas-Piggin/powerpc-interrupt-wrappers/20201111-183954
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-randconfig-r035-20201111 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project a719eef73ec447b2c5fc8b70f69564a2e0f78e1e)
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
        # install powerpc cross compiling tool for clang build
        # apt-get install binutils-powerpc-linux-gnu
        # https://github.com/0day-ci/linux/commit/36805b0ebcf1760588efad86b8b5db5344329148
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Nicholas-Piggin/powerpc-interrupt-wrappers/20201111-183954
        git checkout 36805b0ebcf1760588efad86b8b5db5344329148
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc 

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

All warnings (new ones prefixed by >>):

>> arch/powerpc/kernel/traps.c:1950:30: warning: no previous prototype for function 'performance_monitor_exception_nmi' [-Wmissing-prototypes]
   DEFINE_INTERRUPT_HANDLER_NMI(performance_monitor_exception_nmi)
                                ^
   arch/powerpc/kernel/traps.c:1950:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   DEFINE_INTERRUPT_HANDLER_NMI(performance_monitor_exception_nmi)
   ^
   arch/powerpc/include/asm/interrupt.h:146:19: note: expanded from macro 'DEFINE_INTERRUPT_HANDLER_NMI'
   __visible noinstr long func(struct pt_regs *regs)                       \
                     ^
>> arch/powerpc/kernel/traps.c:1963:32: warning: no previous prototype for function 'performance_monitor_exception_async' [-Wmissing-prototypes]
   DEFINE_INTERRUPT_HANDLER_ASYNC(performance_monitor_exception_async)
                                  ^
   arch/powerpc/kernel/traps.c:1963:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   DEFINE_INTERRUPT_HANDLER_ASYNC(performance_monitor_exception_async)
   ^
   arch/powerpc/include/asm/interrupt.h:118:19: note: expanded from macro 'DEFINE_INTERRUPT_HANDLER_ASYNC'
   __visible noinstr void func(struct pt_regs *regs)                       \
                     ^
   2 warnings generated.

vim +/performance_monitor_exception_nmi +1950 arch/powerpc/kernel/traps.c

  1949	
> 1950	DEFINE_INTERRUPT_HANDLER_NMI(performance_monitor_exception_nmi)
  1951	{
  1952		nmi_enter();
  1953	
  1954		__this_cpu_inc(irq_stat.pmu_irqs);
  1955	
  1956		perf_irq(regs);
  1957	
  1958		nmi_exit();
  1959	
  1960		return 0;
  1961	}
  1962	
> 1963	DEFINE_INTERRUPT_HANDLER_ASYNC(performance_monitor_exception_async)
  1964	{
  1965		irq_enter();
  1966	
  1967		__this_cpu_inc(irq_stat.pmu_irqs);
  1968	
  1969		perf_irq(regs);
  1970	
  1971		irq_exit();
  1972	}
  1973	

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