tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   f69d02e37a85645aa90d18cacfff36dba370f797
commit: 61e0349f703d1576a12f88c15f25e0a56fd277af ubsan: disable object-size sanitizer under GCC
date:   3 months ago
config: s390-allmodconfig (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/torvalds/linux.git/commit/?id=61e0349f703d1576a12f88c15f25e0a56fd277af
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 61e0349f703d1576a12f88c15f25e0a56fd277af
        # 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: kernel/dma/coherent.o: in function `dma_init_coherent_memory':
   coherent.c:(.text+0x4f0): undefined reference to `memremap'
   s390-linux-ld: coherent.c:(.text+0x702): undefined reference to `memunmap'
   s390-linux-ld: kernel/dma/coherent.o: in function `dma_declare_coherent_memory':
   coherent.c:(.text+0xf36): undefined reference to `memunmap'
   s390-linux-ld: drivers/irqchip/irq-al-fic.o: in function `al_fic_init_dt':
   irq-al-fic.c:(.init.text+0xc8): undefined reference to `of_iomap'
   s390-linux-ld: irq-al-fic.c:(.init.text+0x814): 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+0xc50): 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+0xaa): undefined reference to `of_iomap'
   s390-linux-ld: clk-fixed-mmio.c:(.text+0x146): undefined reference to `iounmap'
   s390-linux-ld: drivers/clocksource/timer-of.o: in function `timer_of_init':
   timer-of.c:(.init.text+0x1d8): undefined reference to `of_iomap'
>> s390-linux-ld: timer-of.c:(.init.text+0xcea): undefined reference to `iounmap'
   s390-linux-ld: drivers/clocksource/timer-of.o: in function `timer_of_cleanup':
   timer-of.c:(.init.text+0x1040): 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+0x3aa): undefined reference to `of_iomap'
   s390-linux-ld: timer-microchip-pit64b.c:(.init.text+0x1196): undefined reference to `iounmap'

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