[axboe-block:io_uring-ring-resize 5/5] io_uring/memmap.c:340:26: error: invalid use of undefined type 'struct io_uring_ctx'

[axboe-block:io_uring-ring-resize 5/5] io_uring/memmap.c:340:26: error: invalid use of undefined type 'struct io_uring_ctx'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git io_uring-ring-resize
head:   a33a9152eb06cc15d20dc9d1def2a33b3ff88d81
commit: a33a9152eb06cc15d20dc9d1def2a33b3ff88d81 [5/5] io_uring/register: add IORING_REGISTER_RESIZE_RINGS
config: m68k-randconfig-r071-20241025 (https://download.01.org/0day-ci/archive/20241025/202410251729.DfclLBp9-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241025/202410251729.DfclLBp9-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/202410251729.DfclLBp9-lkp@intel.com/

All errors (new ones prefixed by >>):

   io_uring/memmap.c: In function 'io_uring_get_unmapped_area':
>> io_uring/memmap.c:340:26: error: invalid use of undefined type 'struct io_uring_ctx'
     340 |         guard(mutex)(&ctx->resize_lock);
         |                          ^~

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for GET_FREE_REGION
   Depends on [n]: SPARSEMEM [=n]
   Selected by [m]:
   - RESOURCE_KUNIT_TEST [=m] && RUNTIME_TESTING_MENU [=y] && KUNIT [=m]


vim +340 io_uring/memmap.c

   332	
   333	unsigned long io_uring_get_unmapped_area(struct file *file, unsigned long addr,
   334						 unsigned long len, unsigned long pgoff,
   335						 unsigned long flags)
   336	{
   337		struct io_uring_ctx *ctx = file->private_data;
   338		void *ptr;
   339	
 > 340		guard(mutex)(&ctx->resize_lock);
   341	
   342		ptr = io_uring_validate_mmap_request(file, pgoff, len);
   343		if (IS_ERR(ptr))
   344			return PTR_ERR(ptr);
   345	
   346		return (unsigned long) ptr;
   347	}
   348	

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