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

[Xie Yongji]

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@xxxxxxxxxxxxx>
---
 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