kbuild: Allow to specify composite modules with modname-m
This allows to write
drm-$(CONFIG_AGP) += drm_agpsupport.o
without having to handle CONFIG_AGP=y vs. CONFIG_AGP=m. Only support
this syntax for modules, since built-in code depending on something
modular cannot work and init/Makefile actually relies on the current
semantics. There are a few drivers which adapted to the current
semantics out of necessity; these are fixed to also work when the
respective subsystem is modular.
Acked-by: Peter Chen <peter.chen@freescale.com> [chipidea]
Signed-off-by: Michal Marek <mmarek@suse.com>
diff --git a/drivers/misc/ibmasm/ibmasm.h b/drivers/misc/ibmasm/ibmasm.h
index 9b08344..5bd1277 100644
--- a/drivers/misc/ibmasm/ibmasm.h
+++ b/drivers/misc/ibmasm/ibmasm.h
@@ -211,7 +211,7 @@
void ibmasmfs_add_sp(struct service_processor *sp);
/* uart */
-#ifdef CONFIG_SERIAL_8250
+#if IS_ENABLED(CONFIG_SERIAL_8250)
void ibmasm_register_uart(struct service_processor *sp);
void ibmasm_unregister_uart(struct service_processor *sp);
#else