This patch modifies virtio-net 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@xxxxxxxxxx>
Cc: "Michael S. Tsirkin" <mst@xxxxxxxxxx>
Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Cc: virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <levinsasha928@xxxxxxxxx>
---
drivers/net/virtio_net.c | 14 +++++---------
1 files changed, 5 insertions(+), 9 deletions(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 0c7321c..878db50 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -902,12 +902,10 @@ static void virtnet_update_status(struct virtnet_info *vi)
{
u16 v;
- if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_STATUS))
- return;
-
- vi->vdev->config->get(vi->vdev,
+ if (virtio_config_val(vi->vdev, VIRTIO_NET_F_STATUS,
offsetof(struct virtio_net_config, status),
- &v, sizeof(v));
+ &v) < 0)
+ return;
/* Ignore unknown (future) status bits */
v &= VIRTIO_NET_S_LINK_UP;
@@ -982,11 +980,9 @@ static int virtnet_probe(struct virtio_device *vdev)
}
/* Configuration may specify what MAC to use. Otherwise random. */
- if (virtio_has_feature(vdev, VIRTIO_NET_F_MAC)) {
- vdev->config->get(vdev,
+ if (virtio_config_val_len(vdev, VIRTIO_NET_F_MAC,
offsetof(struct virtio_net_config, mac),
- dev->dev_addr, dev->addr_len);
- } else
+ dev->dev_addr, dev->addr_len) < 0)
random_ether_addr(dev->dev_addr);
/* Set up our device-specific information */
--
1.7.6
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