Use obj-m for drivers/net/wireless/ to support driver-select

The script ./scripts/driver-select allows you to enable only
one wireless driver or a select group of wireless drivers on
drivers/net/wireless/ .

When using driver-select you can opt out to *not* provide a driver
being built in to the directory drivers/net/wireless/ but instead
to a child directory, example would be to enable ATH_COMMON which
only enables modules within drivers/net/wireless/ath/ and nothing
in drivers/net/wireless/ .

When building external kernel modules obj-y enabled directories will
build a built-in.o file only if at least one module was enabled in
that directory. Traditionally the kernel will also build empty
built-in.o files on empty directories. Since running 'make' instead
of 'make modules' makes no sense for external modules we cannot
build a built-in.o on drivers/net/wireless/ by using oby-y and
only enabling modules on children directories, say on
drivers/net/wireless/ath/. Doing this in-kernel (only selecting
ATH_COMMON) *does* work as a first pass 'make' would have built
the empty drivers/net/wireless/built-in.o but for external modules
this is not the case.

To fix this for compat-wireless then use oby-m for drivers/net/wireless/

driver-select now works.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>

diff --git a/Makefile b/Makefile
index 6fda3f4df76ac274d5a762dcb09e3731dbd9bf3f..41a3c97f0905a1bb70c19198f2eaea83bd5b37ea 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -21,7 +21,7 @@ NOSTDINC_FLAGS := -I$(M)/include/ -include $(M)/include/net/compat.h $(CFLAGS)
 
 obj-y := net/wireless/ net/mac80211/ net/rfkill/
 ifeq ($(ONLY_CORE),)
-obj-y += \
+obj-m += \
        drivers/ssb/ \
        drivers/misc/eeprom/ \
        drivers/net/usb/ \