linux-kernel - [PATCH] usb: gadget: legacy gadgets are optional

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Date:   Mon, 13 Feb 2017 15:50:12 +0100
From:   Romain Izard <romain.izard.pro@...il.com>
To:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Felipe Balbi <balbi@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Romain Izard <romain.izard.pro@...il.com>,
        "# 4 . 9" <stable@...r.kernel.org>
Subject: [PATCH] usb: gadget: legacy gadgets are optional

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@...il.com>
cc: <stable@...r.kernel.org> # 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