tree: https://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/linux.git for-review/acpi-iort-id-rework head: b2a8809a420d6d12a92d54c343c360ead32af752 commit: b2a8809a420d6d12a92d54c343c360ead32af752 [12/12] bus: fsl-mc: Add ACPI support for fsl-mc config: arm-allyesconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout b2a8809a420d6d12a92d54c343c360ead32af752 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>, old ones prefixed by <<): drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c: In function 'fsl_mc_msi_domain_get_msi_id': 35 | iort_msi_map_id(&mc_dev->dev, mc_dev->icid); | ^~~~~~~~~~~~~~~ | iort_msi_map_rid drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c: At top level: drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c:108:33: warning: 'union acpi_subtable_headers' declared inside parameter list will not be visible outside of this definition or declaration 108 | its_fsl_mc_msi_parse_madt(union acpi_subtable_headers *header, | ^~~~~~~~~~~~~~~~~~~~~ drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c: In function 'its_fsl_mc_acpi_msi_init': drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c:138:2: error: implicit declaration of function 'acpi_table_parse_madt'; did you mean 'acpi_table_parse'? [-Werror=implicit-function-declaration] 138 | acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_TRANSLATOR, | ^~~~~~~~~~~~~~~~~~~~~ | acpi_table_parse cc1: some warnings being treated as errors vim +35 drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c 26 27 static u32 fsl_mc_msi_domain_get_msi_id(struct irq_domain *domain, 28 struct fsl_mc_device *mc_dev) 29 { 30 struct device_node *of_node; 31 u32 out_id; 32 33 of_node = irq_domain_get_of_node(domain); 34 out_id = of_node ? of_msi_map_id(&mc_dev->dev, of_node, mc_dev->icid) : 36 37 return out_id; 38 } 39 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org