Hi David, kernel test robot noticed the following build errors: [auto build test ERROR on 7a934f4bd7d6f9da84c8812da3ba42ee10f5778e] url: https://github.com/intel-lab-lkp/linux/commits/David-Yang/dt-bindings-clock-Add-simple-clock-controller/20230417-034857 base: 7a934f4bd7d6f9da84c8812da3ba42ee10f5778e patch link: https://lore.kernel.org/r/20230416194624.1258860-3-mmyangfl%40gmail.com patch subject: [PATCH v3 2/4] clk: Add simple clock controller config: s390-randconfig-r036-20230416 (https://download.01.org/0day-ci/archive/20230419/202304190206.OjctYqwT-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 437b7602e4a998220871de78afcb020b9c14a661) 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 # install s390 cross compiling tool for clang build # apt-get install binutils-s390x-linux-gnu # https://github.com/intel-lab-lkp/linux/commit/242d6bab7339a967b40f9731b989913e8b2ea63c git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review David-Yang/dt-bindings-clock-Add-simple-clock-controller/20230417-034857 git checkout 242d6bab7339a967b40f9731b989913e8b2ea63c # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202304190206.OjctYqwT-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): s390x-linux-ld: DWARF error: could not find abbrev number 115 kernel/dma/coherent.o: in function `dma_declare_coherent_memory': coherent.c:(.text+0xc8): undefined reference to `memunmap' s390x-linux-ld: kernel/dma/coherent.o: in function `dma_init_coherent_memory': coherent.c:(.text+0x14a): undefined reference to `memremap' s390x-linux-ld: coherent.c:(.text+0x254): undefined reference to `memunmap' s390x-linux-ld: kernel/dma/coherent.o: in function `dma_release_coherent_memory': coherent.c:(.text+0x2c0): undefined reference to `memunmap' s390x-linux-ld: DWARF error: could not find abbrev number 53 drivers/clk/clk-of.o: in function `of_clk_get_reg': >> clk-of.c:(.text+0x6a): undefined reference to `of_iomap' s390x-linux-ld: drivers/clk/clk-of.o: in function `of_crg_ctrl_setup': clk-of.c:(.text+0x322): undefined reference to `of_iomap' s390x-linux-ld: DWARF error: could not find abbrev number 8446 drivers/clk/clk-fixed-mmio.o: in function `fixed_mmio_clk_setup': clk-fixed-mmio.c:(.text+0x48): undefined reference to `of_iomap' s390x-linux-ld: clk-fixed-mmio.c:(.text+0x68): undefined reference to `iounmap' s390x-linux-ld: DWARF error: could not find abbrev number 15506 drivers/char/xillybus/xillybus_of.o: in function `xilly_drv_probe': xillybus_of.c:(.text+0x64): undefined reference to `devm_platform_ioremap_resource' s390x-linux-ld: DWARF error: could not find abbrev number 93 drivers/misc/open-dice.o: in function `open_dice_write': open-dice.c:(.text+0xe6): undefined reference to `devm_memremap' s390x-linux-ld: open-dice.c:(.text+0x176): undefined reference to `devm_memunmap' s390x-linux-ld: DWARF error: could not find abbrev number 67 drivers/pcmcia/cistpl.o: in function `release_cis_mem': cistpl.c:(.text+0xe8): undefined reference to `iounmap' s390x-linux-ld: drivers/pcmcia/cistpl.o: in function `set_cis_map': cistpl.c:(.text+0x4a6): undefined reference to `ioremap' s390x-linux-ld: cistpl.c:(.text+0x520): undefined reference to `iounmap' s390x-linux-ld: cistpl.c:(.text+0x572): undefined reference to `iounmap' s390x-linux-ld: cistpl.c:(.text+0x59c): undefined reference to `ioremap' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests