In thread of one patch posting, LKP test robot reported some compiling errors, paste the LKP report link here: https://lore.kernel.org/all/202306211329.ticOJCSv-lkp@xxxxxxxxx/T/#u In the config file, several Kconfig options are like below: ------ '# CONFIG_PCI is not set' CONFIG_OF_EARLY_FLATTREE=y CONFIG_DMA_DECLARE_COHERENT=y ------ The reason is (words arranged from Niklas): === On s390 systems (aka mainframes), it has classic channel devices for networking and permanent storage that are currently even more common than PCI devices. Hence it could have a fully functional s390 kernel with CONFIG_PCI=n, then the relevant iomem mapping functions [including ioremap(), devm_ioremap(), etc.] are not available. So make several Kconfig options depend on HAS_IOMEM so that it won't build in those driver code if PCI is unset. Reported-by: kernel test robot <lkp@xxxxxxxxx> Closes: https://lore.kernel.org/oe-kbuild-all/202306211329.ticOJCSv-lkp@xxxxxxxxx/ Baoquan He (8): idmaengine: make FSL_EDMA and INTEL_IDMA64 depends on HAS_IOMEM char: xillybus: make XILLYBUS_OF depend on HAS_IOMEM misc: open-dice: make OPEN_DICE depend on HAS_IOMEM pcmcia : make PCMCIA depend on HAS_IOMEM net: altera-tse: make ALTERA_TSE depend on HAS_IOMEM irqchip/al-fic: make AL_FIC depend on HAS_IOMEM clk: fixed-mmio: make COMMON_CLK_FIXED_MMIO depend on HAS_IOMEM of: make OF_EARLY_FLATTREE depend on HAS_IOMEM drivers/char/xillybus/Kconfig | 2 +- drivers/clk/Kconfig | 1 + drivers/dma/Kconfig | 2 ++ drivers/irqchip/Kconfig | 1 + drivers/misc/Kconfig | 1 + drivers/net/ethernet/altera/Kconfig | 1 + drivers/of/Kconfig | 2 +- drivers/pcmcia/Kconfig | 1 + 8 files changed, 9 insertions(+), 2 deletions(-) -- 2.34.1
