[linux-next:master 6243/6567] WARNING: vmlinux.o(.text+0x110b34): Section mismatch in reference from the function deferred_init_range() to the function .init.text:deferred_free_range()

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

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   a7dd40274d75326ca868479c62090b1198a357ad
commit: 430676b385fb341d5a33950bae284d0df2e70117 [6243/6567] mm: deferred_init_memmap improvements
config: x86_64-randconfig-v0-10180807 (attached as .config)
compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
reproduce:
        git checkout 430676b385fb341d5a33950bae284d0df2e70117
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

>> WARNING: vmlinux.o(.text+0x110b34): Section mismatch in reference from the function deferred_init_range() to the function .init.text:deferred_free_range()
   The function deferred_init_range() references
   the function __init deferred_free_range().
   This is often because deferred_init_range lacks a __init
   annotation or the annotation of deferred_free_range is wrong.
--
>> WARNING: vmlinux.o(.text+0x110bc0): Section mismatch in reference from the function deferred_init_range() to the function .meminit.text:__init_single_page()
   The function deferred_init_range() references
   the function __meminit __init_single_page().
   This is often because deferred_init_range lacks a __meminit
   annotation or the annotation of __init_single_page is wrong.

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