[PATCH] FROMLIST: udmabuf: Add missing compact_ioctl

[Kristian H. Kristensen]

Make sure we can use this on mixed systems.

Signed-off-by: Kristian H. Kristensen <hoegsberg at google.com>
(am from TBD)

BUG=b:167236452
TEST=dmabuf_test from drm-tests passes on mixed systems

Change-Id: I4e9f26aedf82a36b9888bb36d41ccd3b7a27365e
---
 drivers/dma-buf/udmabuf.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c
index 9635897458a0..6f4ff6ede050 100644
--- a/drivers/dma-buf/udmabuf.c
+++ b/drivers/dma-buf/udmabuf.c
@@ -270,6 +270,9 @@ static long udmabuf_ioctl(struct file *filp, unsigned int ioctl,
 static const struct file_operations udmabuf_fops = {
 	.owner		= THIS_MODULE,
 	.unlocked_ioctl = udmabuf_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl   = udmabuf_ioctl,
+#endif
 };
 
 static struct miscdevice udmabuf_misc = {
-- 
2.28.0.402.g5ffc5be6b7-goog