diff options
| author |   Michael S. Tsirkin <mst@redhat.com> | 2020-08-05 05:39:36 -0400 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-08-05 11:08:41 -0400 |
| commit | 64ffa39dc860fb9772225c694353f73eca5801c6 (patch) | |
| tree | 547462f63d3b8f40c293bcd691533900c019a2de | |
| parent | virtio_config: drop LE option from config space (diff) | |
| download | linux-dev-64ffa39dc860fb9772225c694353f73eca5801c6.tar.xz linux-dev-64ffa39dc860fb9772225c694353f73eca5801c6.zip | |
virtio_net: use LE accessors for speed/duplex
Speed and duplex config fields depend on VIRTIO_NET_F_SPEED_DUPLEX
which being 63>31 depends on VIRTIO_F_VERSION_1.
Accordingly, use LE accessors for these fields.
Reported-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| -rw-r--r-- | drivers/net/virtio_net.c | 9 | ||||
| -rw-r--r-- | include/uapi/linux/virtio_net.h | 2 |
2 files changed, 6 insertions, 5 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index ba38765dc490..0934b1ec5320 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -2264,12 +2264,13 @@ static void virtnet_update_settings(struct virtnet_info *vi) if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_SPEED_DUPLEX)) return; - speed = virtio_cread32(vi->vdev, offsetof(struct virtio_net_config, - speed)); + virtio_cread_le(vi->vdev, struct virtio_net_config, speed, &speed); + if (ethtool_validate_speed(speed)) vi->speed = speed; - duplex = virtio_cread8(vi->vdev, offsetof(struct virtio_net_config, - duplex)); + + virtio_cread_le(vi->vdev, struct virtio_net_config, duplex, &duplex); + if (ethtool_validate_duplex(duplex)) vi->duplex = duplex; } diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h index 27d996f29dd1..3f55a4215f11 100644 --- a/include/uapi/linux/virtio_net.h +++ b/include/uapi/linux/virtio_net.h @@ -99,7 +99,7 @@ struct virtio_net_config { * speed, in units of 1Mb. All values 0 to INT_MAX are legal. * Any other value stands for unknown. */ - __virtio32 speed; + __le32 speed; /* * 0x00 - half duplex * 0x01 - full duplex |