linux-kernel - [ammarfaizi2-block:arm64/linux/for-next/misc 2/2] arch/arm64/kernel/irq.c:81:6: warning: no previous prototype for function 'do_softirq_own

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Date:   Fri, 9 Sep 2022 11:12:21 +0800
From:   kernel test robot <lkp@...el.com>
To:     Qi Zheng <zhengqi.arch@...edance.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        Ammar Faizi <ammarfaizi2@...weeb.org>,
        GNU/Weeb Mailing List <gwml@...r.gnuweeb.org>,
        linux-kernel@...r.kernel.org,
        Catalin Marinas <catalin.marinas@....com>,
        Arnd Bergmann <arnd@...db.de>
Subject: [ammarfaizi2-block:arm64/linux/for-next/misc 2/2]
 arch/arm64/kernel/irq.c:81:6: warning: no previous prototype for function
 'do_softirq_own_stack'

tree:   https://github.com/ammarfaizi2/linux-block arm64/linux/for-next/misc
head:   2d2f3bb897a3de4190b1b6b296c3429d01327554
commit: 2d2f3bb897a3de4190b1b6b296c3429d01327554 [2/2] arm64: run softirqs on the per-CPU IRQ stack
config: arm64-randconfig-r023-20220907
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 1546df49f5a6d09df78f569e4137ddb365a3e827)
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://github.com/ammarfaizi2/linux-block/commit/2d2f3bb897a3de4190b1b6b296c3429d01327554
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block arm64/linux/for-next/misc
        git checkout 2d2f3bb897a3de4190b1b6b296c3429d01327554
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/kernel/

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

All warnings (new ones prefixed by >>):

>> arch/arm64/kernel/irq.c:81:6: warning: no previous prototype for function 'do_softirq_own_stack' [-Wmissing-prototypes]
   void do_softirq_own_stack(void)
        ^
   arch/arm64/kernel/irq.c:81:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void do_softirq_own_stack(void)
   ^
   static 
   arch/arm64/kernel/irq.c:120:13: warning: no previous prototype for function 'init_IRQ' [-Wmissing-prototypes]
   void __init init_IRQ(void)
               ^
   arch/arm64/kernel/irq.c:120:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void __init init_IRQ(void)
   ^
   static 
   2 warnings generated.


vim +/do_softirq_own_stack +81 arch/arm64/kernel/irq.c

    80	
  > 81	void do_softirq_own_stack(void)
    82	{
    83		call_on_irq_stack(NULL, ____do_softirq);
    84	}
    85	#endif
    86	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

View attachment "config" of type "text/plain" (178254 bytes)