Re: [PATCH v4 2/3] genirq: Fixed-delay Global Software Interrupt Moderation (GSIM)

[kernel test robot <lkp@intel.com>]

Hi Luigi,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[also build test WARNING on v6.19-rc5]
[cannot apply to tip/irq/core next-20260115]
[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/Luigi-Rizzo/genirq-Add-flags-for-software-interrupt-moderation/20260116-000808
base:   linus/master
patch link:    https://lore.kernel.org/r/20260115155942.482137-3-lrizzo%40google.com
patch subject: [PATCH v4 2/3] genirq: Fixed-delay Global Software Interrupt Moderation (GSIM)
config: arm-randconfig-r123-20260116 (https://download.01.org/0day-ci/archive/20260116/202601160733.QNd6lcMA-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 9b8addffa70cee5b2acc5454712d9cf78ce45710)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260116/202601160733.QNd6lcMA-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202601160733.QNd6lcMA-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> kernel/irq/irq_moderation.c:404:23: sparse: sparse: symbol 'mod_nb' was not declared. Should it be static?
   kernel/irq/irq_moderation.c:298:9: sparse: sparse: context imbalance in 'mode_write' - different lock contexts for basic block
   kernel/irq/irq_moderation.c:330:9: sparse: sparse: context imbalance in 'drain_desc_list' - different lock contexts for basic block

vim +/mod_nb +404 kernel/irq/irq_moderation.c

   403	
 > 404	struct notifier_block mod_nb = {
   405		.notifier_call	= mod_pm_notifier_cb,
   406		.priority	= 100,
   407	};
   408	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki