[kvm-riscv:riscv_kvm_master 15/21] drivers/clocksource/timer-riscv.c:96:6: warning: no previous prototype for function 'riscv_cs_get_mult_shift'

[kvm-riscv:riscv_kvm_master 15/21] drivers/clocksource/timer-riscv.c:96:6: warning: no previous prototype for function 'riscv_cs_get_mult_shift'

[kernel test robot]

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tree:   git://github.com/kvm-riscv/linux.git riscv_kvm_master
head:   36e7b3ba5f5456ef4f2d7989b06c4f1fea368e6f
commit: 0d79f1ca8d6a481003a90a439c4281acecbc79c1 [15/21] RISC-V: KVM: Add timer functionality
config: riscv-randconfig-r005-20200710 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 02946de3802d3bc65bc9f2eb9b8d4969b5a7add8)
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 riscv cross compiling tool for clang build
        # apt-get install binutils-riscv64-linux-gnu
        git checkout 0d79f1ca8d6a481003a90a439c4281acecbc79c1
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv 

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 >>):

>> drivers/clocksource/timer-riscv.c:96:6: warning: no previous prototype for function 'riscv_cs_get_mult_shift' [-Wmissing-prototypes]
   void riscv_cs_get_mult_shift(u32 *mult, u32 *shift)
        ^
   drivers/clocksource/timer-riscv.c:96:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void riscv_cs_get_mult_shift(u32 *mult, u32 *shift)
   ^
   static 
   1 warning generated.

vim +/riscv_cs_get_mult_shift +96 drivers/clocksource/timer-riscv.c

    95	
  > 96	void riscv_cs_get_mult_shift(u32 *mult, u32 *shift)
    97	{
    98		*mult = riscv_clocksource.mult;
    99		*shift = riscv_clocksource.shift;
   100	}
   101	EXPORT_SYMBOL_GPL(riscv_cs_get_mult_shift);
   102	

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

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