[mmotm:master 186/293] WARNING: mm/built-in.o(.text+0x4f528): Section mismatch in reference from the function section_deactivate() to the function .init.text:section_active_mask.part.3()

[kbuild test robot <fengguang.wu@xxxxxxxxx>]

tree:   git://git.cmpxchg.org/linux-mmotm.git master
head:   fa78008f505569e7988ed3eb737ca7d43d87eac3
commit: 621d4f1abb2f03f3f9521fe4706663ddee531cb4 [186/293] mm: support section-unaligned ZONE_DEVICE memory ranges
config: x86_64-allyesdebian (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        git checkout 621d4f1abb2f03f3f9521fe4706663ddee531cb4
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

>> WARNING: mm/built-in.o(.text+0x4f528): Section mismatch in reference from the function section_deactivate() to the function .init.text:section_active_mask.part.3()
   The function section_deactivate() references
   the function __init section_active_mask.part.3().
   This is often because section_deactivate lacks a __init
   annotation or the annotation of section_active_mask.part.3 is wrong.
--
>> WARNING: mm/built-in.o(.meminit.text+0x2311): Section mismatch in reference from the function sparse_add_section() to the function .init.text:section_active_mask.part.3()
   The function __meminit sparse_add_section() references
   a function __init section_active_mask.part.3().
   If section_active_mask.part.3 is only used by sparse_add_section then
   annotate section_active_mask.part.3 with a matching annotation.

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