[weiny2:cxl-cper-testing 2/6] drivers/acpi/apei/ghes.c:710:1: sparse: sparse: symbol 'cxl_cper_fifo' was not declared. Should it be static?

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

tree:   https://github.com/weiny2/linux-kernel.git cxl-cper-testing
head:   9b1f33314e8488506dbad63dc1c896386d4803d6
commit: 5cda2b55e5656f16f327e45c71af123d9d934fdb [2/6] acpi/ghes: Process CXL Component Events
config: i386-randconfig-063-20240423 (https://download.01.org/0day-ci/archive/20240424/202404240040.YT2KAtSx-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240424/202404240040.YT2KAtSx-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/202404240040.YT2KAtSx-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/acpi/apei/ghes.c:710:1: sparse: sparse: symbol 'cxl_cper_fifo' was not declared. Should it be static?
>> drivers/acpi/apei/ghes.c:721:20: sparse: sparse: symbol 'cxl_cper_work' was not declared. Should it be static?
   drivers/acpi/apei/ghes.c:723:13: sparse: sparse: context imbalance in 'cxl_cper_post_event' - different lock contexts for basic block
   drivers/acpi/apei/ghes.c:756:5: sparse: sparse: context imbalance in 'cxl_cper_register_callback' - different lock contexts for basic block

vim +/cxl_cper_fifo +710 drivers/acpi/apei/ghes.c

   709	
 > 710	DEFINE_KFIFO(cxl_cper_fifo, struct cxl_cper_work_data, 32);
   711	static DEFINE_SPINLOCK(cxl_cper_work_lock);
   712	static cxl_cper_callback cper_callback;
   713	static void cxl_cper_cb_fn(struct work_struct *work)
   714	{
   715		struct cxl_cper_work_data wd;
   716	
   717		while (kfifo_get(&cxl_cper_fifo, &wd))
   718			cper_callback(wd.event_type, &wd.rec);
   719	}
   720	static DECLARE_WORK(cxl_cb_work, cxl_cper_cb_fn);
 > 721	struct work_struct *cxl_cper_work = NULL;
   722	

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