[tip:x86/cleanups 1/2] arch/arm64/include/asm/efi.h:102:20: error: static declaration of 'efifb_setup_from_dmi' follows non-static declaration

[kbuild test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/cleanups
head:   c382986fe178d02abdfcd6f4e7b9783c2922872c
commit: d37904c5b14317a2c76efec6b9e4dbcaa17380e5 [1/2] x86/headers: Fix -Wmissing-prototypes warning
config: arm64-allmodconfig (attached as .config)
compiler: aarch64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout d37904c5b14317a2c76efec6b9e4dbcaa17380e5
        # save the attached .config to linux build tree
        GCC_VERSION=7.2.0 make.cross ARCH=arm64 

All errors (new ones prefixed by >>):

   In file included from arch/arm64/kernel/setup.c:62:0:
>> arch/arm64/include/asm/efi.h:102:20: error: static declaration of 'efifb_setup_from_dmi' follows non-static declaration
    static inline void efifb_setup_from_dmi(struct screen_info *si, const char *opt)
                       ^~~~~~~~~~~~~~~~~~~~
   In file included from arch/arm64/kernel/setup.c:40:0:
   include/linux/efi.h:1056:13: note: previous declaration of 'efifb_setup_from_dmi' was here
    extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
                ^~~~~~~~~~~~~~~~~~~~

vim +/efifb_setup_from_dmi +102 arch/arm64/include/asm/efi.h

760b61d76 Ard Biesheuvel 2017-08-18  101  
9822504c1 Ard Biesheuvel 2016-04-25 @102  static inline void efifb_setup_from_dmi(struct screen_info *si, const char *opt)
9822504c1 Ard Biesheuvel 2016-04-25  103  {
9822504c1 Ard Biesheuvel 2016-04-25  104  }
9822504c1 Ard Biesheuvel 2016-04-25  105  

:::::: The code at line 102 was first introduced by commit
:::::: 9822504c1fa5c557ea8776765f03fd16eb4de4c9 efifb: Enable the efi-framebuffer platform driver for ARM and arm64

:::::: TO: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
:::::: CC: Ingo Molnar <mingo@xxxxxxxxxx>

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