linux-kernel - Re: [v3 3/9] mm: add "zero" argument to vmemmap allocators

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Date:   Sun, 14 May 2017 03:17:14 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Pavel Tatashin <pasha.tatashin@...cle.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        sparclinux@...r.kernel.org, linux-mm@...ck.org,
        linuxppc-dev@...ts.ozlabs.org, linux-s390@...r.kernel.org,
        borntraeger@...ibm.com, heiko.carstens@...ibm.com,
        davem@...emloft.net
Subject: Re: [v3 3/9] mm: add "zero" argument to vmemmap allocators

Hi Pavel,

[auto build test ERROR on mmotm/master]
[also build test ERROR on next-20170512]
[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/Pavel-Tatashin/parallelized-struct-page-zeroing/20170507-061412
base:   git://git.cmpxchg.org/linux-mmotm.git master
config: ia64-gensparse_defconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 6.2.0
reproduce:
        wget https://raw.githubusercontent.com/01org/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=ia64 

All error/warnings (new ones prefixed by >>):

   mm/sparse-vmemmap.c: In function '__earlyonly_bootmem_alloc':
>> mm/sparse-vmemmap.c:45:14: error: implicit declaration of function 'memblock_virt_alloc_try_nid_raw' [-Werror=implicit-function-declaration]
     void *mem = memblock_virt_alloc_try_nid_raw(size, align, goal,
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> mm/sparse-vmemmap.c:45:14: warning: initialization makes pointer from integer without a cast [-Wint-conversion]
   cc1: some warnings being treated as errors

vim +/memblock_virt_alloc_try_nid_raw +45 mm/sparse-vmemmap.c

    39	static void * __ref __earlyonly_bootmem_alloc(int node,
    40					unsigned long size,
    41					unsigned long align,
    42					unsigned long goal,
    43					bool zero)
    44	{
  > 45		void *mem = memblock_virt_alloc_try_nid_raw(size, align, goal,
    46							    BOOTMEM_ALLOC_ACCESSIBLE,
    47							    node);
    48		if (!mem) {

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