Hi Lorenzo, [auto build test ERROR on pm/linux-next] [also build test ERROR on v4.13-rc3 next-20170804] [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/Lorenzo-Pieralisi/ACPICA-resource_mgr-Allow-_DMA-method-in-walk-resources/20170804-185152 base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next config: ia64-allnoconfig (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 Note: the linux-review/Lorenzo-Pieralisi/ACPICA-resource_mgr-Allow-_DMA-method-in-walk-resources/20170804-185152 HEAD 37e91dddbbeb771d4df0001f716607f1dd8719f8 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): drivers/acpi/scan.c: In function 'acpi_dma_configure': >> drivers/acpi/scan.c:1451:2: error: implicit declaration of function 'iort_dma_setup' [-Werror=implicit-function-declaration] iort_dma_setup(dev, &dma_addr, &size); ^~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/iort_dma_setup +1451 drivers/acpi/scan.c 1440 1441 /** 1442 * acpi_dma_configure - Set-up DMA configuration for the device. 1443 * @dev: The pointer to the device 1444 * @attr: device dma attributes 1445 */ 1446 int acpi_dma_configure(struct device *dev, enum dev_dma_attr attr) 1447 { 1448 const struct iommu_ops *iommu; 1449 u64 dma_addr = 0, size = 0; 1450 > 1451 iort_dma_setup(dev, &dma_addr, &size); 1452 1453 iommu = iort_iommu_configure(dev); 1454 if (IS_ERR(iommu) && PTR_ERR(iommu) == -EPROBE_DEFER) 1455 return -EPROBE_DEFER; 1456 1457 arch_setup_dma_ops(dev, dma_addr, size, 1458 iommu, attr == DEV_DMA_COHERENT); 1459 1460 return 0; 1461 } 1462 EXPORT_SYMBOL_GPL(acpi_dma_configure); 1463 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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