linux-kernel - [PATCH 5.17 123/219] tun: annotate access to queue->trans

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Date:   Mon, 18 Apr 2022 14:11:32 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Eric Dumazet <edumazet@...gle.com>,
        Antoine Tenart <atenart@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.17 123/219] tun: annotate access to queue->trans_start

From: Antoine Tenart <atenart@...nel.org>

[ Upstream commit 968a1a5d6541cd24e37dadc1926eab9c10aeb09b ]

Commit 5337824f4dc4 ("net: annotate accesses to queue->trans_start")
introduced a new helper, txq_trans_cond_update, to update
queue->trans_start using WRITE_ONCE. One snippet in drivers/net/tun.c
was missed, as it was introduced roughly at the same time.

Fixes: 5337824f4dc4 ("net: annotate accesses to queue->trans_start")
Cc: Eric Dumazet <edumazet@...gle.com>
Signed-off-by: Antoine Tenart <atenart@...nel.org>
Reviewed-by: Eric Dumazet <edumazet@...gle.com>
Link: https://lore.kernel.org/r/20220412135852.466386-1-atenart@kernel.org
Signed-off-by: Paolo Abeni <pabeni@...hat.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/tun.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index de999e0fedbc..aa78d7e00289 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1106,7 +1106,7 @@ static netdev_tx_t tun_net_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	/* NETIF_F_LLTX requires to do our own update of trans_start */
 	queue = netdev_get_tx_queue(dev, txq);
-	queue->trans_start = jiffies;
+	txq_trans_cond_update(queue);
 
 	/* Notify and wake up reader process */
 	if (tfile->flags & TUN_FASYNC)
-- 
2.35.1