[PATCH] usb: gadget: legacy gadgets are optional

[Romain Izard]

When building without modules, it makes sense to configure the kernel to
only use configfs for USB Gadget drivers.

Mark the choice for legacy gadget drivers as optional.

Signed-off-by: Romain Izard <romain.izard.pro@xxxxxxxxx>
cc: <stable@xxxxxxxxxxxxxxx> # 4.9
---
 drivers/usb/gadget/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 8ad203296079..f3ee80ece682 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -460,6 +460,7 @@ config USB_CONFIGFS_F_TCM
 choice
 	tristate "USB Gadget Drivers"
 	default USB_ETH
+	optional
 	help
 	  A Linux "Gadget Driver" talks to the USB Peripheral Controller
 	  driver through the abstract "gadget" API.  Some other operating
-- 
2.9.3