Hi Zhang,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on tip/irq/core]
[also build test WARNING on linus/master v6.0 next-20221011]
[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/Zhang-Xincheng/interrupt-debug-for-discovering-frequent-interrupts/20221011-135800
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 36de4f94197318e45ba77badb5b07274f5bc72a9
config: um-i386_defconfig
compiler: gcc-11 (Debian 11.3.0-5) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/70d1ccdeb3cc035e44adfd98df109d31ed9af116
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Zhang-Xincheng/interrupt-debug-for-discovering-frequent-interrupts/20221011-135800
        git checkout 70d1ccdeb3cc035e44adfd98df109d31ed9af116
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=um SUBARCH=i386 SHELL=/bin/bash kernel/irq/

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

All warnings (new ones prefixed by >>):

>> kernel/irq/spurious.c:315:6: warning: no previous prototype for 'report_frequent_irq' [-Wmissing-prototypes]
     315 | void report_frequent_irq(struct irq_desc *desc, irqreturn_t action_ret)
         |      ^~~~~~~~~~~~~~~~~~~


vim +/report_frequent_irq +315 kernel/irq/spurious.c

   313	
   314	#else
 > 315	void report_frequent_irq(struct irq_desc *desc, irqreturn_t action_ret)
   316	{
   317	}
   318	#endif /* CONFIG_FREQUENT_IRQ_DEBUG */
   319	

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