Re: [mst-vhost:balloon 6/30] Warning: mm/mempolicy.c:2444 function parameter 'user_addr' not described in '__alloc_pages_mpol'

["Michael S. Tsirkin" <mst@redhat.com>]

On Fri, May 08, 2026 at 05:26:30AM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git balloon
> head:   9f56ee36fbf6a6d336dc6a9eaeb4f8a67cb42a31
> commit: c4289f5a4e563611a468b4b5379025a4aa4a7c12 [6/30] mm: thread user_addr through page allocator for cache-friendly zeroing
> config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20260508/202605080515.6jRN5wN7-lkp@intel.com/config)
> compiler: powerpc64-linux-gcc (GCC) 15.2.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260508/202605080515.6jRN5wN7-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/202605080515.6jRN5wN7-lkp@intel.com/
> 
> All warnings (new ones prefixed by >>):
> 
> >> Warning: mm/mempolicy.c:2444 function parameter 'user_addr' not described in '__alloc_pages_mpol'
> >> Warning: mm/mempolicy.c:2444 expecting prototype for alloc_pages_mpol(). Prototype was for __alloc_pages_mpol() instead
>    Warning: mm/mempolicy.c:2547 expecting prototype for vma_alloc_folio(). Prototype was for alloc_frozen_pages() instead
> 
> -- 
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki


kerneldoc messed up with a rebase. will fix in v6.