linux-kernel - Re: [PATCH v4 3/3] fs, xfs: introduce MAP_DIRECT for creating block-map-sealed file ranges

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Message-ID: <201708171637.gudWyG5I%fengguang.wu@intel.com>
Date:   Thu, 17 Aug 2017 16:49:48 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     kbuild-all@...org, darrick.wong@...cle.com,
        Jan Kara <jack@...e.cz>, linux-nvdimm@...ts.01.org,
        linux-api@...r.kernel.org, Dave Chinner <david@...morbit.com>,
        linux-kernel@...r.kernel.org, linux-xfs@...r.kernel.org,
        linux-mm@...ck.org, Jeff Moyer <jmoyer@...hat.com>,
        Alexander Viro <viro@...iv.linux.org.uk>, luto@...nel.org,
        linux-fsdevel@...r.kernel.org,
        Ross Zwisler <ross.zwisler@...ux.intel.com>,
        Christoph Hellwig <hch@....de>
Subject: Re: [PATCH v4 3/3] fs, xfs: introduce MAP_DIRECT for creating
 block-map-sealed file ranges

Hi Dan,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.13-rc5 next-20170816]
[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/Dan-Williams/fs-xfs-introduce-S_IOMAP_SEALED/20170817-114711
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 error/warnings (new ones prefixed by >>):

   mm/mmap.c: In function 'do_mmap':
   mm/mmap.c:1391:8: error: 'MAP_VALIDATE' undeclared (first use in this function)
      case MAP_VALIDATE:
           ^
   mm/mmap.c:1391:8: note: each undeclared identifier is reported only once for each function it appears in
   In file included from mm/mmap.c:17:0:
>> include/linux/mman.h:11:29: error: 'MAP_DIRECT' undeclared (first use in this function)
    #define MAP_SUPPORTED_MASK (MAP_DIRECT)
                                ^
>> mm/mmap.c:1392:18: note: in expansion of macro 'MAP_SUPPORTED_MASK'
       if (flags & ~(MAP_SUPPORTED_MASK | MAP_VALIDATE))
                     ^

vim +/MAP_DIRECT +11 include/linux/mman.h

     9	
    10	/* the MAP_VALIDATE set of supported flags */
  > 11	#define	MAP_SUPPORTED_MASK (MAP_DIRECT)
    12	

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