linux-kernel - [PATCH] virtio_ring: fix description of virtqueue_get

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Message-Id: <1479132975-8517-1-git-send-email-felipe@nutanix.com>
Date:   Mon, 14 Nov 2016 06:16:15 -0800
From:   Felipe Franciosi <felipe@...anix.com>
To:     "Michael S. Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>
Cc:     virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org, Felipe Franciosi <felipe@...anix.com>
Subject: [PATCH] virtio_ring: fix description of virtqueue_get_buf

The device (not the driver) populates the used ring and includes the len
of how much data was written.

Signed-off-by: Felipe Franciosi <felipe@...anix.com>
---
 drivers/virtio/virtio_ring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 489bfc6..8a0d6a9 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -649,7 +649,7 @@ static inline bool more_used(const struct vring_virtqueue *vq)
  * @vq: the struct virtqueue we're talking about.
  * @len: the length written into the buffer
  *
- * If the driver wrote data into the buffer, @len will be set to the
+ * If the device wrote data into the buffer, @len will be set to the
  * amount written.  This means you don't need to clear the buffer
  * beforehand to ensure there's no data leakage in the case of short
  * writes.
-- 
1.9.4