[asm-generic:master 2/6] arch/x86/mm/mpx.c:57:26: error: 'MAP_PRIVATE' undeclared

[asm-generic:master 2/6] arch/x86/mm/mpx.c:57:26: error: 'MAP_PRIVATE' undeclared

[kbuild test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git master
head:   3c4fcc2648569c3fe573849f9254c8c3499ec648
commit: 9ac483109d19095e22414e46d38a6817520883b9 [2/6] arch: move common mmap flags to linux/mman.h
config: x86_64-randconfig-l2-02182029 (attached as .config)
compiler: gcc-5 (Debian 5.5.0-3) 5.4.1 20171010
reproduce:
        git checkout 9ac483109d19095e22414e46d38a6817520883b9
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   arch/x86/mm/mpx.c: In function 'mpx_mmap':
>> arch/x86/mm/mpx.c:57:26: error: 'MAP_PRIVATE' undeclared (first use in this function)
             MAP_ANONYMOUS | MAP_PRIVATE, VM_MPX, 0, &populate, NULL);
                             ^
   arch/x86/mm/mpx.c:57:26: note: each undeclared identifier is reported only once for each function it appears in

vim +/MAP_PRIVATE +57 arch/x86/mm/mpx.c

613fcb7d3 Dave Hansen   2015-06-07  41  
57319d80e Qiaowei Ren   2014-11-14  42  /*
57319d80e Qiaowei Ren   2014-11-14  43   * This is really a simplified "vm_mmap". it only handles MPX
57319d80e Qiaowei Ren   2014-11-14  44   * bounds tables (the bounds directory is user-allocated).
57319d80e Qiaowei Ren   2014-11-14  45   */
57319d80e Qiaowei Ren   2014-11-14  46  static unsigned long mpx_mmap(unsigned long len)
57319d80e Qiaowei Ren   2014-11-14  47  {
57319d80e Qiaowei Ren   2014-11-14  48  	struct mm_struct *mm = current->mm;
1fcfd8db7 Oleg Nesterov 2015-09-09  49  	unsigned long addr, populate;
57319d80e Qiaowei Ren   2014-11-14  50  
eb099e5bc Dave Hansen   2015-06-07  51  	/* Only bounds table can be allocated here */
613fcb7d3 Dave Hansen   2015-06-07  52  	if (len != mpx_bt_size_bytes(mm))
57319d80e Qiaowei Ren   2014-11-14  53  		return -EINVAL;
57319d80e Qiaowei Ren   2014-11-14  54  
57319d80e Qiaowei Ren   2014-11-14  55  	down_write(&mm->mmap_sem);
1fcfd8db7 Oleg Nesterov 2015-09-09  56  	addr = do_mmap(NULL, 0, len, PROT_READ | PROT_WRITE,
897ab3e0c Mike Rapoport 2017-02-24 @57  		       MAP_ANONYMOUS | MAP_PRIVATE, VM_MPX, 0, &populate, NULL);
57319d80e Qiaowei Ren   2014-11-14  58  	up_write(&mm->mmap_sem);
1fcfd8db7 Oleg Nesterov 2015-09-09  59  	if (populate)
1fcfd8db7 Oleg Nesterov 2015-09-09  60  		mm_populate(addr, populate);
57319d80e Qiaowei Ren   2014-11-14  61  
1fcfd8db7 Oleg Nesterov 2015-09-09  62  	return addr;
57319d80e Qiaowei Ren   2014-11-14  63  }
fcc7ffd67 Dave Hansen   2014-11-14  64  

:::::: The code at line 57 was first introduced by commit
:::::: 897ab3e0c49e24b62e2d54d165c7afec6bbca65b userfaultfd: non-cooperative: add event for memory unmaps

:::::: TO: Mike Rapoport <rppt@linux.vnet.ibm.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

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