806eb9e416
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 <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202306211329.ticOJCSv-lkp@intel.com/ Signed-off-by: Baoquan He <bhe@redhat.com> Acked-by: Eli Billauer <eli.billauer@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20230707135852.24292-3-bhe@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>