linux-kernel - [RFC PATCH 08/17] mac80211_hwsim: Remove unused used length

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Date:   Mon, 17 May 2021 17:08:27 +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 08/17] mac80211_hwsim: Remove unused used length

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

Signed-off-by: Xie Yongji <xieyongji@...edance.com>
---
 drivers/net/wireless/mac80211_hwsim.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index fa7d4c20dc13..56d1484e7efa 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -4210,12 +4210,11 @@ static void hwsim_exit_netlink(void)
 #if IS_REACHABLE(CONFIG_VIRTIO)
 static void hwsim_virtio_tx_done(struct virtqueue *vq)
 {
-	unsigned int len;
 	struct sk_buff *skb;
 	unsigned long flags;
 
 	spin_lock_irqsave(&hwsim_virtio_lock, flags);
-	while ((skb = virtqueue_get_buf(vq, &len)))
+	while ((skb = virtqueue_get_buf(vq, NULL)))
 		nlmsg_free(skb);
 	spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
 }
-- 
2.11.0