tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: e844ee04dee0cf1b6d97183c12266c7726d73636 commit: 5f14a8ca1b493a3c633ff549fb7d494887d7804a [1194/13432] mtd: rawnand: denali: Make use of the helper function devm_platform_ioremap_resource_byname() config: s390-randconfig-c004-20211101 (attached as .config) compiler: s390-linux-gcc (GCC) 11.2.0 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/commi... 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 5f14a8ca1b493a3c633ff549fb7d494887d7804a # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=s390 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; 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+0x48): undefined reference to `of_iomap' s390-linux-ld: irq-al-fic.c:(.init.text+0x280): undefined reference to `iounmap' s390-linux-ld: drivers/char/xillybus/xillybus_of.o: in function `xilly_drv_probe': xillybus_of.c:(.text+0x13c): undefined reference to `devm_platform_ioremap_resource' s390-linux-ld: drivers/mtd/nand/raw/denali_dt.o: in function `denali_dt_probe': s390-linux-ld: drivers/pcmcia/cistpl.o: in function `set_cis_map': cistpl.c:(.text+0x230): undefined reference to `iounmap' s390-linux-ld: cistpl.c:(.text+0x242): undefined reference to `ioremap' s390-linux-ld: cistpl.c:(.text+0x2a2): undefined reference to `ioremap' s390-linux-ld: cistpl.c:(.text+0x2bc): undefined reference to `iounmap' s390-linux-ld: drivers/pcmcia/cistpl.o: in function `release_cis_mem': cistpl.c:(.text+0xd72): undefined reference to `iounmap' s390-linux-ld: drivers/clocksource/timer-of.o: in function `timer_of_init': timer-of.c:(.init.text+0x96): undefined reference to `of_iomap' s390-linux-ld: timer-of.c:(.init.text+0x34e): undefined reference to `iounmap' s390-linux-ld: drivers/clocksource/timer-of.o: in function `timer_of_cleanup': timer-of.c:(.init.text+0x3ec): 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+0xda): undefined reference to `of_iomap' s390-linux-ld: timer-microchip-pit64b.c:(.init.text+0x4e2): undefined reference to `iounmap' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org