tree: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git ixp4xx-armsoc-v5.13-rc1 head: 6180f3baa56fc0b0bd3c733d8c11582a734d20de commit: e317a334610f645e147cd8efe6545b42429a9984 [6/12] pata: ixp4xx: split platform data to its own header config: arc-allyesconfig (attached as .config) compiler: arceb-elf-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/linusw/linux-nomadik.git/... git remote add nomadik https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git git fetch --no-tags nomadik ixp4xx-armsoc-v5.13-rc1 git checkout e317a334610f645e147cd8efe6545b42429a9984 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc 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 >>): 22 | #include <mach/hardware.h> | ^~~~~~~~~~~~~~~~~ compilation terminated. vim +22 drivers/ata/pata_ixp4xx_cf.c d5d9f7ac58ea10 Linus Walleij 2021-04-29 @22 #include <mach/hardware.h> 0df0d0a0ea9ffc Alessandro Zummo 2006-11-14 23 :::::: The code at line 22 was first introduced by commit :::::: d5d9f7ac58ea1041375a028f143ca5784693ea86 ARM/ixp4xx: Make NEED_MACH_IO_H optional :::::: TO: Linus Walleij <linus.walleij(a)linaro.org&gt; :::::: CC: Linus Walleij <linus.walleij(a)linaro.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org