usb: gadget: add compat_ioctl

This allows 32 bit owners of USB Class to make ioctls
into a 64 bit kernel.

Change-Id: Ia31b26147ab619f0673f94b6662eaf181a9eb5dd
Signed-off-by: William Wu <william.wu@rock-chips.com>
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>

drivers/usb/gadget/function/f_accessory.c

@@ -922,6 +922,9 @@ static const struct file_operations acc_fops = {
 	.read = acc_read,
 	.write = acc_write,
 	.unlocked_ioctl = acc_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = acc_ioctl,
+#endif
 	.open = acc_open,
 	.release = acc_release,
 };

drivers/usb/gadget/function/uvc_v4l2.c

@@ -354,6 +354,9 @@ const struct v4l2_file_operations uvc_v4l2_fops = {
 	.open		= uvc_v4l2_open,
 	.release	= uvc_v4l2_release,
 	.unlocked_ioctl	= video_ioctl2,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl32	= video_ioctl2,
+#endif
 	.mmap		= uvc_v4l2_mmap,
 	.poll		= uvc_v4l2_poll,
 #ifndef CONFIG_MMU