[media] staging: add MEDIA_SUPPORT dependency

arndb · mchehab · commit cd70c37b5a23 · 2016-07-28T20:16:16.000-03:00
staging media drivers tend to have a build time dependency on the media support. In particular, the newly added pulse8 cec driver can only be a loadable module if MEDIA_SUPPORT=m, but its build dependency is on a 'bool' symbol (MEDIA_CEC), so a randconfig build can fail with pulse8_cec built-in: drivers/staging/built-in.o: In function `pulse8_disconnect': dgnc_utils.c:(.text+0x114): undefined reference to `cec_unregister_adapter' drivers/staging/built-in.o: In function `pulse8_irq_work_handler': dgnc_utils.c:(.text+0x1bc): undefined reference to `cec_transmit_done' dgnc_utils.c:(.text+0x1d8): undefined reference to `cec_received_msg' dgnc_utils.c:(.text+0x1f4): undefined reference to `cec_transmit_done' dgnc_utils.c:(.text+0x218): undefined reference to `cec_transmit_done' dgnc_utils.c:(.text+0x23c): undefined reference to `cec_transmit_done' drivers/staging/built-in.o: In function `pulse8_connect': dgnc_utils.c:(.text+0x844): undefined reference to `cec_allocate_adapter' dgnc_utils.c:(.text+0x8a4): undefined reference to `cec_delete_adapter' dgnc_utils.c:(.text+0xa10): undefined reference to `cec_register_adapter' Originally, MEDIA_CEC itself was a tristate symbol, which would have prevented this, but since 5bb2399 ("[media] cec: fix Kconfig dependency problems"), it doesn't work like that any more. This encloses all of the staging media drivers in a CONFIG_MEDIA_SUPPORT dependency in Kconfig, which solves the problem by enforcing that none of the drivers can be built-in if the media core is a module. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
diff --git a/drivers/staging/media/Kconfig b/drivers/staging/media/Kconfig
@@ -16,7 +16,7 @@ menuconfig STAGING_MEDIA
           If in doubt, say N here.
 
 
-if STAGING_MEDIA
+if STAGING_MEDIA && MEDIA_SUPPORT
 
 # Please keep them in alphabetic order
 source "drivers/staging/media/bcm2048/Kconfig"
