From 855e0c5288177bcb193f6f6316952d2490478e1c Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Mon, 14 Oct 2013 18:11:51 +1030 Subject: virtio: use size-based config accessors. This lets the transport do endian conversion if necessary, and insulates the drivers from the difference. Most drivers can use the simple helpers virtio_cread() and virtio_cwrite(). Signed-off-by: Rusty Russell --- net/9p/trans_virtio.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'net/9p') diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c index 990afab2be1b..9c5a1aa34d12 100644 --- a/net/9p/trans_virtio.c +++ b/net/9p/trans_virtio.c @@ -544,9 +544,7 @@ static int p9_virtio_probe(struct virtio_device *vdev) chan->inuse = false; if (virtio_has_feature(vdev, VIRTIO_9P_MOUNT_TAG)) { - vdev->config->get(vdev, - offsetof(struct virtio_9p_config, tag_len), - &tag_len, sizeof(tag_len)); + virtio_cread(vdev, struct virtio_9p_config, tag_len, &tag_len); } else { err = -EINVAL; goto out_free_vq; @@ -556,8 +554,9 @@ static int p9_virtio_probe(struct virtio_device *vdev) err = -ENOMEM; goto out_free_vq; } - vdev->config->get(vdev, offsetof(struct virtio_9p_config, tag), - tag, tag_len); + + virtio_cread_bytes(vdev, offsetof(struct virtio_9p_config, tag), + tag, tag_len); chan->tag = tag; chan->tag_len = tag_len; err = sysfs_create_file(&(vdev->dev.kobj), &dev_attr_mount_tag.attr); -- cgit v1.2.3