linux-kernel - Re: [PATCHv2] mm: Account pud page tables

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Date:   Sun, 1 Oct 2017 08:38:21 +0800
From:   kbuild test robot <lkp@...el.com>
To:     "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Cc:     kbuild-all@...org, Andrew Morton <akpm@...ux-foundation.org>,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Michal Hocko <mhocko@...e.com>,
        Vlastimil Babka <vbabka@...e.cz>
Subject: Re: [PATCHv2] mm: Account pud page tables

Hi Kirill,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.14-rc2]
[cannot apply to next-20170929]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Kirill-A-Shutemov/mm-Account-pud-page-tables/20170926-031536
config: microblaze-nommu_defconfig (attached as .config)
compiler: microblaze-linux-gcc (GCC) 6.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=microblaze 

All errors (new ones prefixed by >>):

   In file included from arch/microblaze/include/uapi/asm/byteorder.h:7:0,
                    from include/asm-generic/bitops/le.h:5,
                    from include/asm-generic/bitops.h:34,
                    from ./arch/microblaze/include/generated/asm/bitops.h:1,
                    from include/linux/bitops.h:37,
                    from include/linux/kernel.h:10,
                    from include/asm-generic/bug.h:15,
                    from ./arch/microblaze/include/generated/asm/bug.h:1,
                    from include/linux/bug.h:4,
                    from include/linux/page-flags.h:9,
                    from kernel/bounds.c:9:
   include/linux/byteorder/big_endian.h:7:2: warning: #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN [-Wcpp]
    #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN
     ^~~~~~~
   In file included from arch/microblaze/include/uapi/asm/byteorder.h:7:0,
                    from include/asm-generic/bitops/le.h:5,
                    from include/asm-generic/bitops.h:34,
                    from ./arch/microblaze/include/generated/asm/bitops.h:1,
                    from include/linux/bitops.h:37,
                    from include/linux/kernel.h:10,
                    from include/linux/list.h:8,
                    from include/linux/rculist.h:9,
                    from include/linux/pid.h:4,
                    from include/linux/sched.h:13,
                    from arch/microblaze/kernel/asm-offsets.c:13:
   include/linux/byteorder/big_endian.h:7:2: warning: #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN [-Wcpp]
    #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN
     ^~~~~~~
   In file included from arch/microblaze/include/asm/io.h:17:0,
                    from include/linux/io.h:25,
                    from include/linux/irq.h:24,
                    from include/asm-generic/hardirq.h:12,
                    from ./arch/microblaze/include/generated/asm/hardirq.h:1,
                    from include/linux/hardirq.h:8,
                    from include/linux/interrupt.h:12,
                    from include/linux/kernel_stat.h:8,
                    from arch/microblaze/kernel/asm-offsets.c:14:
   include/linux/mm.h: In function 'mm_nr_puds_init':
>> include/linux/mm.h:1622:21: error: 'struct mm_struct' has no member named 'nr_puds'; did you mean 'nr_ptes'?
     atomic_long_set(&mm->nr_puds, 0);
                        ^~
   include/linux/mm.h: In function 'mm_nr_puds':
>> include/linux/mm.h:1627:29: error: 'const struct mm_struct' has no member named 'nr_puds'; did you mean 'nr_ptes'?
     return atomic_long_read(&mm->nr_puds);
                                ^~
   include/linux/mm.h: In function 'mm_inc_nr_puds':
   include/linux/mm.h:1632:21: error: 'struct mm_struct' has no member named 'nr_puds'; did you mean 'nr_ptes'?
     atomic_long_inc(&mm->nr_puds);
                        ^~
   include/linux/mm.h: In function 'mm_dec_nr_puds':
   include/linux/mm.h:1637:21: error: 'struct mm_struct' has no member named 'nr_puds'; did you mean 'nr_ptes'?
     atomic_long_dec(&mm->nr_puds);
                        ^~
   make[2]: *** [arch/microblaze/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [sub-make] Error 2

vim +1622 include/linux/mm.h

  1619	
  1620	static inline void mm_nr_puds_init(struct mm_struct *mm)
  1621	{
> 1622		atomic_long_set(&mm->nr_puds, 0);
  1623	}
  1624	
  1625	static inline unsigned long mm_nr_puds(const struct mm_struct *mm)
  1626	{
> 1627		return atomic_long_read(&mm->nr_puds);
  1628	}
  1629	

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