Hi,

[auto build test ERROR on v4.7-rc3]
[also build test ERROR on next-20160614]
[cannot apply to tip/x86/core]
[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/Lukasz-Anaczkowski/Linux-VM-workaround-for-Knights-Landing-A-D-leak/20160615-000610
config: i386-alldefconfig (attached as .config)
compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   mm/built-in.o: In function `unmap_page_range':
   (.text+0x1e9e8): undefined reference to `fix_pte_leak'
   mm/built-in.o: In function `change_protection_range':
>> mprotect.c:(.text+0x25578): undefined reference to `fix_pte_leak'
   mm/built-in.o: In function `move_page_tables':
   (.text+0x25d81): undefined reference to `fix_pte_leak'
   mm/built-in.o: In function `vunmap_page_range':
   vmalloc.c:(.text+0x28419): undefined reference to `fix_pte_leak'
   mm/built-in.o: In function `ptep_clear_flush':
   (.text+0x2a7b3): undefined reference to `fix_pte_leak'
   mm/built-in.o:madvise.c:(.text+0x2b4b0): more undefined references to `fix_pte_leak' follow

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