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| author | Rusty Russell <rusty@rustcorp.com.au> | 2013-10-14 18:11:51 +1030 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2013-10-17 10:55:37 +1030 |
| commit | 855e0c5288177bcb193f6f6316952d2490478e1c (patch) | |
| tree | 7c5cfed44c9def1a7ca3388f37a9520de52af44b /drivers/virtio | |
| parent | 0b90d0622ad290b3717a13489b396af52aea9d2d (diff) | |
| download | linux-855e0c5288177bcb193f6f6316952d2490478e1c.tar.gz | |
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 <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/virtio')
| -rw-r--r-- | drivers/virtio/virtio_balloon.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index d6f681641606..c444654fc33f 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -275,9 +275,8 @@ static inline s64 towards_target(struct virtio_balloon *vb) __le32 v; s64 target; - vb->vdev->config->get(vb->vdev, - offsetof(struct virtio_balloon_config, num_pages), - &v, sizeof(v)); + virtio_cread(vb->vdev, struct virtio_balloon_config, num_pages, &v); + target = le32_to_cpu(v); return target - vb->num_pages; } @@ -286,9 +285,8 @@ static void update_balloon_size(struct virtio_balloon *vb) { __le32 actual = cpu_to_le32(vb->num_pages); - vb->vdev->config->set(vb->vdev, - offsetof(struct virtio_balloon_config, actual), - &actual, sizeof(actual)); + virtio_cwrite(vb->vdev, struct virtio_balloon_config, num_pages, + &actual); } static int balloon(void *_vballoon) |