Re: [PATCH] printk: Use two irq_works instead per-CPU

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

Hi Sebastian,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[also build test WARNING on v7.3-rc2 next-20260909]
[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/Sebastian-Andrzej-Siewior/printk-Use-two-irq_works-instead-per-CPU/20260911-123832
base:   linus/master
patch link:    https://lore.kernel.org/r/20260911103832.w6C8cT4L%40linutronix.de
patch subject: [PATCH] printk: Use two irq_works instead per-CPU
config: m68k-randconfig-r131-20260911 (https://download.01.org/0day-ci/archive/20260912/202609120349.yDbrP6Tf-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 11.5.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260912/202609120349.yDbrP6Tf-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/202609120349.yDbrP6Tf-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> kernel/printk/printk.c:4614:17: sparse: sparse: symbol 'pending_wakeup_work' was not declared. Should it be static?
>> kernel/printk/printk.c:4615:17: sparse: sparse: symbol 'pending_output_work' was not declared. Should it be static?

vim +/pending_wakeup_work +4614 kernel/printk/printk.c

  4613	
> 4614	struct irq_work pending_wakeup_work = IRQ_WORK_INIT_LAZY(pending_wake_fn);
> 4615	struct irq_work pending_output_work = IRQ_WORK_INIT_LAZY(pending_output_fn);
  4616	

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