CONFIG_MFD_CROS_EC requires CONFIG_MFD_CORE for a couple of functions that are declared but not defined:
ERROR: "mfd_remove_devices" [drivers/mfd/cros_ec.ko] undefined! ERROR: "mfd_add_devices" [drivers/mfd/cros_ec.ko] undefined! Fix it by selecting CONFIG_MFD_CORE anytime CONFIG_MFD_CROS_EC is enabled. Signed-off-by: David Rientjes <rient...@google.com> --- drivers/mfd/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -23,6 +23,7 @@ config MFD_88PM860X config MFD_CROS_EC tristate "Support ChromeOS Embedded Controller" + select MFD_CORE help If you say Y here you get support for the ChromeOS Embedded Controller (EC) providing keyboard, battery and power services. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/