Hi zhichang.yuan, [auto build test ERROR on linus/master] [also build test ERROR on v4.12-rc2 next-20170525] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Gabriele-Paoloni/LPC-legacy-ISA-I-O-support/20170526-033719 config: ia64-allmodconfig (attached as .config) compiler: ia64-linux-gcc (GCC) 6.2.0 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=ia64 All errors (new ones prefixed by >>): drivers/built-in.o: In function `lpc_host_io_setup': >> hisi_lpc.c:(.text+0x252): undefined reference to `acpi_set_logic_pio_resource' drivers/built-in.o: In function `acpi_scan_init': (.init.text+0x6742): undefined reference to `acpi_indirectio_scan_init' --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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