Configuring the USB_G_WEBCAM driver as built-in leads to a link
error when CONFIG_VIDEO_V4L2 is a loadable module:
drivers/usb/gadget/function/f_uvc.o: In function `uvc_function_setup':
f_uvc.c:(.text+0xfe): undefined reference to `v4l2_event_queue'
drivers/usb/gadget/function/f_uvc.o: In function `uvc_function_ep0_complete':
f_uvc.c:(.text+0x188): undefined reference to `v4l2_event_queue'
This changes the Kconfig dependency to disallow that configuration,
and force it to be a module in that case as well.
This is apparently a rather old bug, but very hard to trigger
even in thousands of randconfig builds.
Signed-off-by: Arnd Bergmann <a...@arndb.de>
---
drivers/usb/gadget/legacy/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/legacy/Kconfig
b/drivers/usb/gadget/legacy/Kconfig
index 2d80a9d1d5d9..fbd974965399 100644
--- a/drivers/usb/gadget/legacy/Kconfig
+++ b/drivers/usb/gadget/legacy/Kconfig
@@ -513,7 +513,7 @@ endif
# or video class gadget drivers), or specific hardware, here.
config USB_G_WEBCAM
tristate "USB Webcam Gadget"
- depends on VIDEO_DEV
+ depends on VIDEO_V4L2
select USB_LIBCOMPOSITE
select VIDEOBUF2_VMALLOC
select USB_F_UVC
--
2.9.0
