Re: [PATCH 4/9] arch/sparc: Teach arch_get_unmapped_area{_topdown} to handle hugetlb mappings

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

Hi Oscar,

kernel test robot noticed the following build errors:

[auto build test ERROR on s390/features]
[also build test ERROR on akpm-mm/mm-everything powerpc/next powerpc/fixes deller-parisc/for-next arnd-asm-generic/master linus/master v6.10 next-20240718]
[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/Oscar-Salvador/mm-mmap-Teach-generic_get_unmapped_area-_topdown-to-handle-hugetlb-mappings/20240718-191208
base:   https://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git features
patch link:    https://lore.kernel.org/r/20240718105903.19617-5-osalvador%40suse.de
patch subject: [PATCH 4/9] arch/sparc: Teach arch_get_unmapped_area{_topdown} to handle hugetlb mappings
config: sparc64-defconfig (https://download.01.org/0day-ci/archive/20240719/202407190616.9AIcabfU-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240719/202407190616.9AIcabfU-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/202407190616.9AIcabfU-lkp@intel.com/

All errors (new ones prefixed by >>):

   arch/sparc/kernel/sys_sparc_64.c: In function 'get_align_mask':
>> arch/sparc/kernel/sys_sparc_64.c:92:21: error: implicit declaration of function 'is_file_hugepages' [-Wimplicit-function-declaration]
      92 |         if (filp && is_file_hugepages(filp))
         |                     ^~~~~~~~~~~~~~~~~
>> arch/sparc/kernel/sys_sparc_64.c:93:24: error: implicit declaration of function 'huge_page_mask_align' [-Wimplicit-function-declaration]
      93 |                 return huge_page_mask_align(filp);
         |                        ^~~~~~~~~~~~~~~~~~~~
   In file included from arch/sparc/include/asm/bug.h:25,
                    from include/linux/bug.h:5,
                    from include/linux/thread_info.h:13,
                    from include/asm-generic/preempt.h:5,
                    from ./arch/sparc/include/generated/asm/preempt.h:1,
                    from include/linux/preempt.h:79,
                    from include/linux/rcupdate.h:27,
                    from include/linux/rculist.h:11,
                    from include/linux/sched/signal.h:5,
                    from arch/sparc/kernel/sys_sparc_64.c:11:
   arch/sparc/kernel/sys_sparc_64.c: In function 'arch_get_unmapped_area_topdown':
>> include/asm-generic/bug.h:71:27: error: expected ',' or ';' before 'do'
      71 | #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0)
         |                           ^~
   arch/sparc/kernel/sys_sparc_64.c:175:9: note: in expansion of macro 'BUG_ON'
     175 |         BUG_ON(!test_thread_flag(TIF_32BIT));
         |         ^~~~~~


vim +/is_file_hugepages +92 arch/sparc/kernel/sys_sparc_64.c

    89	
    90	static unsigned long get_align_mask(struct file *filp, unsigned long flags)
    91	{
  > 92		if (filp && is_file_hugepages(filp))
  > 93			return huge_page_mask_align(filp);
    94		if (filp || (flags & MAP_SHARED))
    95			return PAGE_MASK & (SHMLBA - 1);
    96	
    97		return 0;
    98	}
    99	

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