linux-kernel - Re: [PATCHv4] mm/gup: Cache dev

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Date:   Fri, 12 Oct 2018 00:27:55 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Keith Busch <keith.busch@...el.com>
Cc:     kbuild-all@...org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        Kirill Shutemov <kirill.shutemov@...ux.intel.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Keith Busch <keith.busch@...el.com>
Subject: Re: [PATCHv4] mm/gup: Cache dev_pagemap while pinning pages

Hi Keith,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.19-rc7 next-20181011]
[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/Keith-Busch/mm-gup-Cache-dev_pagemap-while-pinning-pages/20181011-205544
config: microblaze-nommu_defconfig (attached as .config)
compiler: microblaze-linux-gcc (GCC) 8.1.0
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
        GCC_VERSION=8.1.0 make.cross ARCH=microblaze 

All errors (new ones prefixed by >>):

>> mm/nommu.c:1714:1: error: expected identifier or '(' before '{' token
    {
    ^

vim +1714 mm/nommu.c

^1da177e Linus Torvalds 2005-04-16  1711  
9d889fcc Keith Busch    2018-10-10  1712  struct page *follow_page(struct vm_area_struct *vma, unsigned long address,
9d889fcc Keith Busch    2018-10-10  1713  			 unsigned int foll_flags);
^1da177e Linus Torvalds 2005-04-16 @1714  {
^1da177e Linus Torvalds 2005-04-16  1715  	return NULL;
^1da177e Linus Torvalds 2005-04-16  1716  }
^1da177e Linus Torvalds 2005-04-16  1717  

:::::: The code at line 1714 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@...970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@...970.osdl.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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