netdev - [PATCH 21/38] virtio_net: Replace deprecated CPU-hotplug functions.

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Date:   Tue,  3 Aug 2021 16:16:04 +0200
From:   Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:     linux-kernel@...r.kernel.org
Cc:     tglx@...utronix.de, Peter Zijlstra <peterz@...radead.org>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org
Subject: [PATCH 21/38] virtio_net: Replace deprecated CPU-hotplug functions.

The functions get_online_cpus() and put_online_cpus() have been
deprecated during the CPU hotplug rework. They map directly to
cpus_read_lock() and cpus_read_unlock().

Replace deprecated CPU-hotplug functions with the official version.
The behavior remains unchanged.

Cc: "Michael S. Tsirkin" <mst@...hat.com>
Cc: Jason Wang <jasowang@...hat.com>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: Jakub Kicinski <kuba@...nel.org>
Cc: virtualization@...ts.linux-foundation.org
Cc: netdev@...r.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
---
 drivers/net/virtio_net.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 56c3f85190938..ea551ac9e08db 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -2208,14 +2208,14 @@ static int virtnet_set_channels(struct net_device *dev,
 	if (vi->rq[0].xdp_prog)
 		return -EINVAL;
 
-	get_online_cpus();
+	cpus_read_lock();
 	err = _virtnet_set_queues(vi, queue_pairs);
 	if (err) {
-		put_online_cpus();
+		cpus_read_unlock();
 		goto err;
 	}
 	virtnet_set_affinity(vi);
-	put_online_cpus();
+	cpus_read_unlock();
 
 	netif_set_real_num_tx_queues(dev, queue_pairs);
 	netif_set_real_num_rx_queues(dev, queue_pairs);
@@ -2970,9 +2970,9 @@ static int init_vqs(struct virtnet_info *vi)
 	if (ret)
 		goto err_free;
 
-	get_online_cpus();
+	cpus_read_lock();
 	virtnet_set_affinity(vi);
-	put_online_cpus();
+	cpus_read_unlock();
 
 	return 0;
 
-- 
2.32.0