linux-kernel - Re: [PATCH v6 4/9] mm: thp: Introduce anon_orders and anon_always

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Date:   Wed, 11 Oct 2023 14:02:14 +0800
From:   kernel test robot <lkp@...el.com>
To:     Ryan Roberts <ryan.roberts@....com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Matthew Wilcox <willy@...radead.org>,
        Yin Fengwei <fengwei.yin@...el.com>,
        David Hildenbrand <david@...hat.com>,
        Yu Zhao <yuzhao@...gle.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Anshuman Khandual <anshuman.khandual@....com>,
        Yang Shi <shy828301@...il.com>,
        "Huang, Ying" <ying.huang@...el.com>, Zi Yan <ziy@...dia.com>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Itaru Kitayama <itaru.kitayama@...il.com>,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        John Hubbard <jhubbard@...dia.com>,
        David Rientjes <rientjes@...gle.com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Hugh Dickins <hughd@...gle.com>
Cc:     oe-kbuild-all@...ts.linux.dev,
        Linux Memory Management List <linux-mm@...ck.org>,
        Ryan Roberts <ryan.roberts@....com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v6 4/9] mm: thp: Introduce anon_orders and
 anon_always_mask sysfs files

Hi Ryan,

kernel test robot noticed the following build errors:

[auto build test ERROR on arm64/for-next/core]
[also build test ERROR on linus/master v6.6-rc5]
[cannot apply to akpm-mm/mm-everything tj-cgroup/for-next next-20231010]
[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/Ryan-Roberts/mm-Allow-deferred-splitting-of-arbitrary-anon-large-folios/20230929-194541
base:   https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
patch link:    https://lore.kernel.org/r/20230929114421.3761121-5-ryan.roberts%40arm.com
patch subject: [PATCH v6 4/9] mm: thp: Introduce anon_orders and anon_always_mask sysfs files
config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20231011/202310111302.ahYvNKX4-lkp@intel.com/config)
compiler: powerpc64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231011/202310111302.ahYvNKX4-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202310111302.ahYvNKX4-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/linux/bits.h:6,
                    from include/linux/ratelimit_types.h:5,
                    from include/linux/printk.h:9,
                    from include/asm-generic/bug.h:22,
                    from arch/powerpc/include/asm/bug.h:116,
                    from include/linux/bug.h:5,
                    from include/linux/mmdebug.h:5,
                    from include/linux/mm.h:6,
                    from mm/huge_memory.c:8:
>> include/vdso/bits.h:7:33: error: initializer element is not constant
       7 | #define BIT(nr)                 (UL(1) << (nr))
         |                                 ^
   mm/huge_memory.c:73:47: note: in expansion of macro 'BIT'
      73 | unsigned int huge_anon_orders __read_mostly = BIT(PMD_ORDER);
         |                                               ^~~


vim +7 include/vdso/bits.h

3945ff37d2f48d Vincenzo Frascino 2020-03-20  6  
3945ff37d2f48d Vincenzo Frascino 2020-03-20 @7  #define BIT(nr)			(UL(1) << (nr))
cbdb1f163af2bb Andy Shevchenko   2022-11-28  8  #define BIT_ULL(nr)		(ULL(1) << (nr))
3945ff37d2f48d Vincenzo Frascino 2020-03-20  9  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki