(.init.text+0x134): multiple definition of `plat_irq_setup'

[kbuild test robot]

Hi Takashi,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   63fc9c23488d6cf34e4c233e24ba59b7e5548412
commit: c97617a81a7616d49bc3700959e08c6c6f447093 ALSA: hda/ca0132 - Fix build error without CONFIG_PCI
date:   8 weeks ago
config: sh-allmodconfig (attached as .config)
compiler: sh4-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 c97617a81a7616d49bc3700959e08c6c6f447093
        # save the attached .config to linux build tree
        GCC_VERSION=7.2.0 make.cross ARCH=sh 

All errors (new ones prefixed by >>):

   arch/sh/boards/of-generic.o: In function `plat_irq_setup':
>> (.init.text+0x134): multiple definition of `plat_irq_setup'
   arch/sh/kernel/cpu/sh2/setup-sh7619.o:(.init.text+0x30): first defined here
   arch/sh/boards/of-generic.o: In function `arch_init_clk_ops':
>> (.init.text+0x118): multiple definition of `arch_init_clk_ops'
   arch/sh/kernel/cpu/sh2/clock-sh7619.o:(.init.text+0x0): first defined here

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