linux-kernel - Re: [PATCH v2] arm64: run softirqs on the per-CPU IRQ stack

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Date:   Sun, 7 Aug 2022 21:47:18 +0800
From:   kernel test robot <lkp@...el.com>
To:     Qi Zheng <zhengqi.arch@...edance.com>, will@...nel.org,
        arnd@...db.de, catalin.marinas@....com, mark.rutland@....com
Cc:     kbuild-all@...ts.01.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Qi Zheng <zhengqi.arch@...edance.com>
Subject: Re: [PATCH v2] arm64: run softirqs on the per-CPU IRQ stack

Hi Qi,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on soc/for-next]
[also build test WARNING on v5.19]
[cannot apply to arm64/for-next/core linus/master next-20220805]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Qi-Zheng/arm64-run-softirqs-on-the-per-CPU-IRQ-stack/20220802-145547
base:   https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git for-next
config: arm64-randconfig-r024-20220801 (https://download.01.org/0day-ci/archive/20220807/202208072123.sWU13g72-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 12.1.0
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
        # https://github.com/intel-lab-lkp/linux/commit/34ac9375ce5e75127084159f724fcb2208c022a3
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Qi-Zheng/arm64-run-softirqs-on-the-per-CPU-IRQ-stack/20220802-145547
        git checkout 34ac9375ce5e75127084159f724fcb2208c022a3
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 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 'do_softirq_own_stack' [-Wmissing-prototypes]
      81 | void do_softirq_own_stack(void)
         |      ^~~~~~~~~~~~~~~~~~~~
   arch/arm64/kernel/irq.c:120:13: warning: no previous prototype for 'init_IRQ' [-Wmissing-prototypes]
     120 | void __init init_IRQ(void)
         |             ^~~~~~~~


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	

-- 
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https://01.org/lkp