tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   15ac8fdb74403772780be1a8c4f7c1eff1040fc4
commit: 31de313dfdcf6971b0a1c30f86eabaa1eede74b3 [10645/11438] PHY: Ingenic: Add USB PHY driver using generic PHY framework.
config: s390-randconfig-r014-20201207 (attached as .config)
compiler: s390-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=31de313dfdcf6971b0a1c30f86eabaa1eede74b3
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 31de313dfdcf6971b0a1c30f86eabaa1eede74b3
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=s390 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   s390-linux-ld: drivers/irqchip/irq-al-fic.o: in function `al_fic_init_dt':
   irq-al-fic.c:(.init.text+0xbc): undefined reference to `of_iomap'
   s390-linux-ld: irq-al-fic.c:(.init.text+0x794): undefined reference to `iounmap'
   s390-linux-ld: drivers/phy/ingenic/phy-ingenic-usb.o: in function `ingenic_usb_phy_probe':
>> phy-ingenic-usb.c:(.text+0xb66): undefined reference to `devm_platform_ioremap_resource'
   s390-linux-ld: drivers/clk/clk-fixed-mmio.o: in function `fixed_mmio_clk_setup':
   clk-fixed-mmio.c:(.text+0x9a): undefined reference to `of_iomap'
   s390-linux-ld: clk-fixed-mmio.c:(.text+0xf8): undefined reference to `iounmap'
   s390-linux-ld: drivers/input/keyboard/bcm-keypad.o: in function `bcm_kp_probe':
   bcm-keypad.c:(.text+0xda0): undefined reference to `devm_ioremap_resource'
   s390-linux-ld: drivers/input/keyboard/omap4-keypad.o: in function `omap4_keypad_remove':
   omap4-keypad.c:(.text+0x8a): undefined reference to `iounmap'
   s390-linux-ld: drivers/input/keyboard/omap4-keypad.o: in function `omap4_keypad_probe':
   omap4-keypad.c:(.text+0x414): undefined reference to `ioremap'
   s390-linux-ld: omap4-keypad.c:(.text+0x60a): undefined reference to `iounmap'
   s390-linux-ld: drivers/clocksource/timer-of.o: in function `timer_of_init':
   timer-of.c:(.init.text+0x1bc): undefined reference to `of_iomap'
   s390-linux-ld: timer-of.c:(.init.text+0xbe2): undefined reference to `iounmap'
   s390-linux-ld: drivers/clocksource/timer-of.o: in function `timer_of_cleanup':
   timer-of.c:(.init.text+0xfda): undefined reference to `iounmap'
   s390-linux-ld: drivers/clocksource/timer-microchip-pit64b.o: in function `mchp_pit64b_dt_init_timer':
   timer-microchip-pit64b.c:(.init.text+0x384): undefined reference to `of_iomap'
   s390-linux-ld: timer-microchip-pit64b.c:(.init.text+0xf24): undefined reference to `iounmap'

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org