[arm-platforms:irq/fiq 8/9] arch/arm64/kernel/irq.c:79:6: warning: no previous prototype for function 'default_handle_fiq'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git irq/fiq
head:   cdd1f26172a46397fcc4e659c7cd1a0fa78e13e7
commit: 42c513c4b2f8065f294c5ee8b7ec18d2f429559c [8/9] arm64: irq: allow FIQs to be handled
config: arm64-randconfig-r035-20210219 (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 arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/commit/?id=42c513c4b2f8065f294c5ee8b7ec18d2f429559c
        git remote add arm-platforms https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git
        git fetch --no-tags arm-platforms irq/fiq
        git checkout 42c513c4b2f8065f294c5ee8b7ec18d2f429559c
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <redacted>

All warnings (new ones prefixed by >>):

   arch/arm64/kernel/irq.c:74:6: warning: no previous prototype for function 'default_handle_irq' [-Wmissing-prototypes]
   void default_handle_irq(struct pt_regs *regs)
        ^
   arch/arm64/kernel/irq.c:74:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void default_handle_irq(struct pt_regs *regs)
   ^
   static 

quoted

arch/arm64/kernel/irq.c:79:6: warning: no previous prototype for function 'default_handle_fiq' [-Wmissing-prototypes]

   void default_handle_fiq(struct pt_regs *regs)
        ^
   arch/arm64/kernel/irq.c:79:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void default_handle_fiq(struct pt_regs *regs)
   ^
   static 
   arch/arm64/kernel/irq.c:105:13: warning: no previous prototype for function 'init_IRQ' [-Wmissing-prototypes]
   void __init init_IRQ(void)
               ^
   arch/arm64/kernel/irq.c:105:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void __init init_IRQ(void)
   ^
   static 
   3 warnings generated.


vim +/default_handle_fiq +79 arch/arm64/kernel/irq.c

    78	
  > 79	void default_handle_fiq(struct pt_regs *regs)
    80	{
    81		panic("FIQ taken without a registered FIQ controller\n");
    82	}
    83	

---
0-DAY CI Kernel Test Service, Intel Corporation
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