Re: [akpm-mm:mm-unstable 433/449] vm_util.c:133:14: error: too many arguments to function 'pagemap_scan_supported'

[Andrew Morton <akpm@linux-foundation.org>]

On Sat, 21 Mar 2026 03:34:21 +0100 kernel test robot <lkp@intel.com> wrote:

> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable
> head:   28edd9c5a25ceb76c2d4e55bc5c37acd7eb0fc92
> commit: 6fa1bf6b010deb50b35d2b2a7c97e7e229f2747e [433/449] selftests/mm: add UFFDIO_MOVE huge zeropage PMD regression test
> config: i386-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20260321/202603210319.P5MPyTEf-lkp@intel.com/config)
> compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260321/202603210319.P5MPyTEf-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/202603210319.P5MPyTEf-lkp@intel.com/
> 
> Note: the akpm-mm/mm-unstable HEAD 28edd9c5a25ceb76c2d4e55bc5c37acd7eb0fc92 builds fine.
>       It only hurts bisectability.

No, there is no later patch which fixes this.

> All errors (new ones prefixed by >>):
> 
>    vm_util.c: In function 'pagemap_is_huge_zero':
> >> vm_util.c:133:14: error: too many arguments to function 'pagemap_scan_supported'
>      133 |         if (!pagemap_scan_supported(fd, start))
>          |              ^~~~~~~~~~~~~~~~~~~~~~
>    vm_util.c:70:13: note: declared here
>       70 | static bool pagemap_scan_supported(int fd)
>          |             ^~~~~~~~~~~~~~~~~~~~~~
> 

Thanks, I assume this:

--- a/tools/testing/selftests/mm/vm_util.c~selftests-mm-add-uffdio_move-huge-zeropage-pmd-regression-test-fix
+++ a/tools/testing/selftests/mm/vm_util.c
@@ -130,7 +130,7 @@ bool pagemap_is_huge_zero(int fd, char *
 {
 	uint64_t categories;
 
-	if (!pagemap_scan_supported(fd, start))
+	if (!pagemap_scan_supported(fd))
 		return false;
 
 	categories = pagemap_scan_get_categories(fd, start);
_