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virtio-console: Use virtio_config_val() for retrieving config 

This patch modifies virtio-console to use virtio_config_val() instead
of a 'if(virtio_has_feature()) vdev->config->get()' construct to retrieve
optional values from the config space.

Cc: Amit Shah <amit.shah@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: virtualization@lists.linux-foundation.org
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Sasha Levin 2011-08-14 17:52:31 +03:00 committed by Rusty Russell
parent b4beb4bf99
commit 51c6d61ac5
1 changed files with 4 additions and 6 deletions
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10
drivers/char/virtio_console.c
View File

@ -1675,13 +1675,11 @@ static int __devinit virtcons_probe(struct virtio_device *vdev)
multiport = false;
portdev->config.max_nr_ports = 1;
if (virtio_has_feature(vdev, VIRTIO_CONSOLE_F_MULTIPORT)) {
if (virtio_config_val(vdev, VIRTIO_CONSOLE_F_MULTIPORT,
offsetof(struct virtio_console_config,
max_nr_ports),
&portdev->config.max_nr_ports) == 0)
multiport = true;
vdev->config->get(vdev, offsetof(struct virtio_console_config,
max_nr_ports),
&portdev->config.max_nr_ports,
sizeof(portdev->config.max_nr_ports));
}
err = init_vqs(portdev);
if (err < 0) {