tree:   git://git.cmpxchg.org/linux-mmotm.git master
head:   6102e3c755ac0084fdce65f69a7a149fc51a8a86
commit: 2e194852dda1e49db738559e428fd168c3d7a8b6 [124/321] mm: mmap: add mmap flag to request VM_LOCKONFAULT
config: tile-tilegx_defconfig (attached as .config)
reproduce:
  wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
  chmod +x ~/bin/make.cross
  git checkout 2e194852dda1e49db738559e428fd168c3d7a8b6
  # save the attached .config to linux build tree
  make.cross ARCH=tile 

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

   In file included from fs/hugetlbfs/inode.c:30:0:
   include/linux/mman.h: In function 'calc_vm_flag_bits':
>> include/linux/mman.h:90:9: error: 'MAP_LOCKONFAULT' undeclared (first use in this function)
   include/linux/mman.h:90:9: 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: In function 'calc_vm_flag_bits':
>> include/linux/mman.h:90:9: error: 'MAP_LOCKONFAULT' undeclared (first use in this function)
   include/linux/mman.h:90:9: note: each undeclared identifier is reported only once for each function it appears in
   mm/mmap.c: In function 'do_mmap_pgoff':
>> mm/mmap.c:1317:28: error: 'MAP_LOCKONFAULT' undeclared (first use in this function)
   mm/mmap.c: In function 'calc_vm_flag_bits':
>> include/linux/mman.h:91:1: warning: control reaches end of non-void function [-Wreturn-type]

vim +/MAP_LOCKONFAULT +90 include/linux/mman.h

    84	static inline unsigned long
    85	calc_vm_flag_bits(unsigned long flags)
    86	{
    87		return _calc_vm_trans(flags, MAP_GROWSDOWN,  VM_GROWSDOWN ) |
    88		       _calc_vm_trans(flags, MAP_DENYWRITE,  VM_DENYWRITE ) |
    89		       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    ) |
  > 90		       _calc_vm_trans(flags, MAP_LOCKONFAULT,VM_LOCKONFAULT);
  > 91	}
    92	
    93	unsigned long vm_commit_limit(void);
    94	#endif /* _LINUX_MMAN_H */

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