linux-kernel - [RFC PATCH 06/17] caif_virtio: Remove unused used length

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Date:   Mon, 17 May 2021 17:08:25 +0800
From:   Xie Yongji <xieyongji@...edance.com>
To:     mst@...hat.com, jasowang@...hat.com, stefanha@...hat.com
Cc:     amit@...nel.org, arei.gonglei@...wei.com, airlied@...ux.ie,
        kraxel@...hat.com, dan.j.williams@...el.com,
        johannes@...solutions.net, ohad@...ery.com,
        bjorn.andersson@...aro.org, david@...hat.com, vgoyal@...hat.com,
        miklos@...redi.hu, sgarzare@...hat.com,
        virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org
Subject: [RFC PATCH 06/17] caif_virtio: Remove unused used length

The used length is not used. Let's drop it and
pass NULL to virtqueue_get_buf() instead.

Signed-off-by: Xie Yongji <xieyongji@...edance.com>
---
 drivers/net/caif/caif_virtio.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/caif/caif_virtio.c b/drivers/net/caif/caif_virtio.c
index 106f089eb2a8..020ce35c2d65 100644
--- a/drivers/net/caif/caif_virtio.c
+++ b/drivers/net/caif/caif_virtio.c
@@ -165,12 +165,11 @@ static void cfv_release_used_buf(struct virtqueue *vq_tx)
 	BUG_ON(vq_tx != cfv->vq_tx);
 
 	for (;;) {
-		unsigned int len;
 		struct buf_info *buf_info;
 
 		/* Get used buffer from used ring to recycle used descriptors */
 		spin_lock_irqsave(&cfv->tx_lock, flags);
-		buf_info = virtqueue_get_buf(vq_tx, &len);
+		buf_info = virtqueue_get_buf(vq_tx, NULL);
 		spin_unlock_irqrestore(&cfv->tx_lock, flags);
 
 		/* Stop looping if there are no more buffers to free */
-- 
2.11.0