Re: [PATCH 3/3] mm: shmem: move shmem_huge_global_enabled() into shmem_allowable_huge_orders()

[Baolin Wang]

On 2024/7/12 11:10, kernel test robot wrote:
> Hi Baolin,
>
> kernel test robot noticed the following build errors:
>
> [auto build test ERROR on akpm-mm/mm-everything]
> [also build test ERROR on next-20240711]
> [cannot apply to linus/master v6.10-rc7]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch#_base_tree_information]
>
> url:    https://github.com/intel-lab-lkp/linux/commits/Baolin-Wang/mm-shmem-simplify-the-suitable-huge-orders-validation-for-tmpfs/20240711-134512
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
> patch link:    https://lore.kernel.org/r/6e5858d345304d0428c1c2c2a25c289c062b4ea8.1720668581.git.baolin.wang%40linux.alibaba.com
> patch subject: [PATCH 3/3] mm: shmem: move shmem_huge_global_enabled() into shmem_allowable_huge_orders()
> config: x86_64-allnoconfig (https://download.01.org/0day-ci/archive/20240712/202407121052.Jbq6PSIi-lkp@xxxxxxxxx/config)
> compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240712/202407121052.Jbq6PSIi-lkp@xxxxxxxxx/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@xxxxxxxxx>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202407121052.Jbq6PSIi-lkp@xxxxxxxxx/
>
> All errors (new ones prefixed by >>):
>
> > > mm/shmem.c:1160:6: error: call to undeclared function 'shmem_huge_global_enabled'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
>      1160 |         if (shmem_huge_global_enabled(inode, 0, false, NULL, 0))
>           |             ^
>     1 error generated.

Thanks for reporting. I forgot to add a dummy function in case 
CONFIG_TRANSPARENT_HUGEPAGE is not enabled. Will fix in next version.