From: Ricardo B. Marliere <ricardo@marliere.net>
Date: Sun, 4 Feb 2024 20:52:51 +0000 (-0300)
Subject: virtio: make virtio_bus const
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=2b666ee29618f452b84aeacf08e1267894de7234;p=linux.git

virtio: make virtio_bus const

Now that the driver core can properly handle constant struct bus_type,
move the virtio_bus variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Message-Id: <20240204-bus_cleanup-virtio-v1-1-3bcb2212aaa0@marliere.net>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Jason Wang <jasowang@redhat.com>
---

diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c
index f513ee21b1c18..f173587893cb3 100644
--- a/drivers/virtio/virtio.c
+++ b/drivers/virtio/virtio.c
@@ -353,7 +353,7 @@ static void virtio_dev_remove(struct device *_d)
 	of_node_put(dev->dev.of_node);
 }
 
-static struct bus_type virtio_bus = {
+static const struct bus_type virtio_bus = {
 	.name  = "virtio",
 	.match = virtio_dev_match,
 	.dev_groups = virtio_dev_groups,