[android-common:android13-5.15 2/2] drivers/dma-buf/heaps/deferred-free-helper.c:21:19: sparse: sparse: symbol 'freelist_waitqueue' was not declared. Should it be static?

[android-common:android13-5.15 2/2] drivers/dma-buf/heaps/deferred-free-helper.c:21:19: sparse: sparse: symbol 'freelist_waitqueue' was not declared. Should it be static?

[kernel test robot]

Hi Isaac,

First bad commit (maybe != root cause):

tree:   https://android.googlesource.com/kernel/common android13-5.15
head:   3ca64f2c1d4a9c43702fb81c557480d6e43870f2
commit: 811cea558ee8a321fdfa5051549ebf76b4f6cacb [2/2] ANDROID: Allow the deferred-free library heap to be compiled into the GKI
config: i386-randconfig-061-20230822 (https://download.01.org/0day-ci/archive/20230822/202308220539.quOFMSwZ-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230822/202308220539.quOFMSwZ-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/202308220539.quOFMSwZ-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/dma-buf/heaps/deferred-free-helper.c:21:19: sparse: sparse: symbol 'freelist_waitqueue' was not declared. Should it be static?
>> drivers/dma-buf/heaps/deferred-free-helper.c:22:20: sparse: sparse: symbol 'freelist_task' was not declared. Should it be static?

vim +/freelist_waitqueue +21 drivers/dma-buf/heaps/deferred-free-helper.c

18b754f7ce7e6b John Stultz 2020-12-09  18  
18b754f7ce7e6b John Stultz 2020-12-09  19  static LIST_HEAD(free_list);
18b754f7ce7e6b John Stultz 2020-12-09  20  static size_t list_nr_pages;
18b754f7ce7e6b John Stultz 2020-12-09 @21  wait_queue_head_t freelist_waitqueue;
18b754f7ce7e6b John Stultz 2020-12-09 @22  struct task_struct *freelist_task;
18b754f7ce7e6b John Stultz 2020-12-09  23  static DEFINE_SPINLOCK(free_list_lock);
18b754f7ce7e6b John Stultz 2020-12-09  24  

:::::: The code at line 21 was first introduced by commit
:::::: 18b754f7ce7e6b09a08af9cfdbfcefeee9e54e08 ANDROID: dma-buf: heaps: Add deferred-free-helper library code

:::::: TO: John Stultz <john.stultz@linaro.org>
:::::: CC: Alistair Delva <adelva@google.com>

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