[PATCH V3 1/9] virtio: use virtio_device_ready() in virtio_device_restore()

From: Jason Wang <jasowang@redhat.com>
To: jasowang@redhat.com, mst@redhat.com,
	linux-kernel@vger.kernel.org,
	virtualization@lists.linux-foundation.org
Cc: sgarzare@redhat.com, eperezma@redhat.com, lulu@redhat.com,
	tglx@linutronix.de, peterz@infradead.org, paulmck@kernel.org,
	maz@kernel.org, pasic@linux.ibm.com, cohuck@redhat.com
Subject: [PATCH V3 1/9] virtio: use virtio_device_ready() in virtio_device_restore()
Date: Mon, 25 Apr 2022 10:44:10 +0800	[thread overview]
Message-ID: <20220425024418.8415-2-jasowang@redhat.com> (raw)
In-Reply-To: <20220425024418.8415-1-jasowang@redhat.com>

From: Stefano Garzarella <sgarzare@redhat.com>

It will allow us to do extension on virtio_device_ready() without
duplicating code.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Halil Pasic <pasic@linux.ibm.com>
Cc: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 drivers/virtio/virtio.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c
index 22f15f444f75..75c8d560bbd3 100644
--- a/drivers/virtio/virtio.c
+++ b/drivers/virtio/virtio.c
@@ -526,8 +526,9 @@ int virtio_device_restore(struct virtio_device *dev)
 			goto err;
 	}
 
-	/* Finally, tell the device we're all set */
-	virtio_add_status(dev, VIRTIO_CONFIG_S_DRIVER_OK);
+	/* If restore didn't do it, mark device DRIVER_OK ourselves. */
+	if (!(dev->config->get_status(dev) & VIRTIO_CONFIG_S_DRIVER_OK))
+		virtio_device_ready(dev);
 
 	virtio_config_enable(dev);
 
-- 
2.25.1

