From: Rusty Russell <rusty@rustcorp.com.au>
Date: Wed, 20 Mar 2013 05:14:29 +0000 (+1030)
Subject: virtio_rng: use simplified virtqueue accessors.
X-Git-Tag: firefly_0821_release~3680^2~600^2~33
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=fb6aa6fcfec29932122cb0fb2d5d1f7700a9883b;p=firefly-linux-kernel-4.4.55.git

virtio_rng: use simplified virtqueue accessors.

We never add buffers with input and output parts, so use the new accessors.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reviewed-by: Asias He <asias@redhat.com>
---

diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c
index 10fd71ccf587..842e2d55d335 100644
--- a/drivers/char/hw_random/virtio-rng.c
+++ b/drivers/char/hw_random/virtio-rng.c
@@ -47,7 +47,7 @@ static void register_buffer(u8 *buf, size_t size)
 	sg_init_one(&sg, buf, size);
 
 	/* There should always be room for one buffer. */
-	if (virtqueue_add_buf(vq, &sg, 0, 1, buf, GFP_KERNEL) < 0)
+	if (virtqueue_add_inbuf(vq, &sg, 1, buf, GFP_KERNEL) < 0)
 		BUG();
 
 	virtqueue_kick(vq);