From 806eb9e4160d5fc633c20db660586e1aaa121e1c Mon Sep 17 00:00:00 2001 From: Baoquan He Date: Fri, 7 Jul 2023 21:58:46 +0800 Subject: [PATCH] char: xillybus: make XILLYBUS_OF depend on HAS_IOMEM 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. Here let XILLYBUS_OF depend on HAS_IOMEM so that it won't be built to cause below compiling error if PCI is unset: ------ ERROR: modpost: "devm_platform_ioremap_resource" [drivers/char/xillybus/xillybus_of.ko] undefined! ------ Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202306211329.ticOJCSv-lkp@intel.com/ Signed-off-by: Baoquan He Acked-by: Eli Billauer Cc: Arnd Bergmann Link: https://lore.kernel.org/r/20230707135852.24292-3-bhe@redhat.com Signed-off-by: Greg Kroah-Hartman --- drivers/char/xillybus/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/char/xillybus/Kconfig b/drivers/char/xillybus/Kconfig index a8036da..f51d5333 100644 --- a/drivers/char/xillybus/Kconfig +++ b/drivers/char/xillybus/Kconfig @@ -29,7 +29,7 @@ config XILLYBUS_PCIE config XILLYBUS_OF tristate "Xillybus over Device Tree" - depends on OF && HAS_DMA + depends on OF && HAS_DMA && HAS_IOMEM help Set to M if you want Xillybus to find its resources from the Open Firmware Flattened Device Tree. If the target is an embedded -- 2.7.4