[avpatel:riscv_kvm_v17 16/22] drivers/clocksource/timer-riscv.c:83:6: warning: no previous prototype for function 'riscv_cs_get_mult_shift'

[avpatel:riscv_kvm_v17 16/22] drivers/clocksource/timer-riscv.c:83:6: warning: no previous prototype for function 'riscv_cs_get_mult_shift'

[kernel test robot]

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tree:   https://github.com/avpatel/linux.git riscv_kvm_v17
head:   ba7ce7de0cc0281ef05082cf82d498222443c9bf
commit: 48d5f95187b37f1612ac6738e3af1d854f200bd3 [16/22] RISC-V: KVM: Add timer functionality
config: riscv-randconfig-r005-20210217 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project c9439ca36342fb6013187d0a69aef92736951476)
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
        # https://github.com/avpatel/linux/commit/48d5f95187b37f1612ac6738e3af1d854f200bd3
        git remote add avpatel https://github.com/avpatel/linux.git
        git fetch --no-tags avpatel riscv_kvm_v17
        git checkout 48d5f95187b37f1612ac6738e3af1d854f200bd3
        # 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:83:6: 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:83:1: 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 +83 drivers/clocksource/timer-riscv.c

    82	
  > 83	void riscv_cs_get_mult_shift(u32 *mult, u32 *shift)
    84	{
    85		*mult = riscv_clocksource.mult;
    86		*shift = riscv_clocksource.shift;
    87	}
    88	EXPORT_SYMBOL_GPL(riscv_cs_get_mult_shift);
    89	

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

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