Re: [PATCH RFC v3 2/2] mm: guestmem: Convert address_space operations to guestmem library

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

Hi Elliot,

[This is a private test report for your RFC patch.]
kernel test robot noticed the following build warnings:

[auto build test WARNING on 5cb1659f412041e4780f2e8ee49b2e03728a2ba6]

url:    https://github.com/intel-lab-lkp/linux/commits/Elliot-Berman/KVM-guest_memfd-Convert-free_folio-to-release_folio/20241114-063557
base:   5cb1659f412041e4780f2e8ee49b2e03728a2ba6
patch link:    https://lore.kernel.org/r/20241113-guestmem-library-v3-2-71fdee85676b%40quicinc.com
patch subject: [PATCH RFC v3 2/2] mm: guestmem: Convert address_space operations to guestmem library
config: x86_64-rhel-8.3 (https://download.01.org/0day-ci/archive/20241114/202411141918.hOFtcGfU-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241114/202411141918.hOFtcGfU-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/202411141918.hOFtcGfU-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> mm/guestmem.c:214: warning: expecting prototype for guestmem_put_folio(). Prototype was for guestmem_punch_hole() instead


vim +214 mm/guestmem.c

   203	
   204	/**
   205	 * guestmem_put_folio() - Helper to punch a hole in a guestmem mapping
   206	 * @mapping: The address space to punch a hole in
   207	 * @offset: The offset to punch a hole at
   208	 * @len: The length of the hole to punch
   209	 *
   210	 * Return: 0 on success, -errno on failure.
   211	 */
   212	int guestmem_punch_hole(struct address_space *mapping, loff_t offset,
   213				loff_t len)
 > 214	{

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