linux-kernel - Re: [PATCH] mm: introduce MADV_CLR

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Message-ID: <201705222358.rWUCVz4F%fengguang.wu@intel.com>
Date:   Mon, 22 May 2017 23:33:53 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Mike Rapoport <rppt@...ux.vnet.ibm.com>
Cc:     kbuild-all@...org, Andrew Morton <akpm@...ux-foundation.org>,
        Arnd Bergmann <arnd@...db.de>,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Andrea Arcangeli <aarcange@...hat.com>,
        linux-mm <linux-mm@...ck.org>,
        lkml <linux-kernel@...r.kernel.org>,
        Mike Rapoport <rppt@...ux.vnet.ibm.com>
Subject: Re: [PATCH] mm: introduce MADV_CLR_HUGEPAGE

Hi Mike,

[auto build test ERROR on mmotm/master]
[also build test ERROR on v4.12-rc2 next-20170522]
[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/Mike-Rapoport/mm-introduce-MADV_CLR_HUGEPAGE/20170522-212244
base:   git://git.cmpxchg.org/linux-mmotm.git master
config: xtensa-allmodconfig (attached as .config)
compiler: xtensa-linux-gcc (GCC) 4.9.0
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=xtensa 

All errors (new ones prefixed by >>):

   mm/madvise.c: In function 'madvise_behavior':
>> mm/madvise.c:108:7: error: 'MADV_CLR_HUGEPAGE' undeclared (first use in this function)
     case MADV_CLR_HUGEPAGE:
          ^
   mm/madvise.c:108:7: note: each undeclared identifier is reported only once for each function it appears in

vim +/MADV_CLR_HUGEPAGE +108 mm/madvise.c

   102					error = -EAGAIN;
   103				goto out;
   104			}
   105			break;
   106		case MADV_HUGEPAGE:
   107		case MADV_NOHUGEPAGE:
 > 108		case MADV_CLR_HUGEPAGE:
   109			error = hugepage_madvise(vma, &new_flags, behavior);
   110			if (error) {
   111				/*

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

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