Hi Stephen,
On Sun, Dec 08, 2013 at 10:11:52PM -0600, Felipe Balbi wrote:
> On Mon, Dec 09, 2013 at 02:58:03PM +1100, Stephen Rothwell wrote:
> > Hi Felipe,
> >
> > After merging the usb-gadget tree, today's linux-next build (x86_64
> > allmodconfig) failed like this:
> >
> > drivers/built-in.o: In function `otg_set_state':
> > (.text+0x14f7de): undefined reference to `usb_bus_start_enum'
> >
> > CONFIG_USB is 'm' in this build.
> >
> > I am not sure what changed to cause this, maybe e1d2e31975e1 ("usb: phy:
> > Add OTG FSM configuration option")?
> >
> > I have used the usb-gadget tree from next-20131206 for today.
>
> I see what caused it, will fix it up with a patch which should probably
> be backported a few kernels back. Thanks for letting me know.
Do you still have the .config which caused that build error ? I couldn't
reproduce with CONFIG_USB=m && CONFIG_USB_OTG=y.
In any case, I believe this will help:
diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig
index fed7f68..03cc86c 100644
--- a/drivers/usb/core/Kconfig
+++ b/drivers/usb/core/Kconfig
@@ -51,6 +51,7 @@ config USB_DYNAMIC_MINORS
config USB_OTG
bool "OTG support"
+ depends on USB && USB_GADGET
depends on PM_RUNTIME
default n
help
It makes no sense to allow OTG without having both host and gadget
support.
cheers
--
balbi
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