fs/ext4/extents-test.c:59:3: sparse: sparse: symbol 'k_ctx' was not declared. Should it be static?

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

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   11439c4635edd669ae435eec308f4ab8a0804808
commit: cb1e0c1d1fad5bfad90d80c74ebdb53796d8a2db ext4: kunit tests for extent splitting and conversion
date:   5 weeks ago
config: arc-randconfig-r131-20260302 (https://download.01.org/0day-ci/archive/20260302/202603021708.wwwXBbbO-lkp@intel.com/config)
compiler: arc-linux-gcc (GCC) 14.3.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260302/202603021708.wwwXBbbO-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/202603021708.wwwXBbbO-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   fs/ext4/extents.c: note: in included file:
>> fs/ext4/extents-test.c:59:3: sparse: sparse: symbol 'k_ctx' was not declared. Should it be static?

vim +/k_ctx +59 fs/ext4/extents-test.c

    49	
    50	struct kunit_ctx {
    51		/*
    52		 * Ext4 inode which has only 1 unwrit extent
    53		 */
    54		struct ext4_inode_info *k_ei;
    55		/*
    56		 * Represents the underlying data area (used for zeroout testing)
    57		 */
    58		char *k_data;
  > 59	} k_ctx;
    60	

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