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authorRusty Russell <rusty@rustcorp.com.au>2013-10-14 09:41:51 +0200
committerRusty Russell <rusty@rustcorp.com.au>2013-10-17 02:25:37 +0200
commit855e0c5288177bcb193f6f6316952d2490478e1c (patch)
tree7c5cfed44c9def1a7ca3388f37a9520de52af44b /drivers/char
parentvirtio_config: introduce size-based accessors. (diff)
downloadlinux-855e0c5288177bcb193f6f6316952d2490478e1c.tar.xz
linux-855e0c5288177bcb193f6f6316952d2490478e1c.zip
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/char')
-rw-r--r--drivers/char/virtio_console.c15
1 files changed, 5 insertions, 10 deletions
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 862fd54a0ffb..2a8d9a7a1834 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -1837,12 +1837,8 @@ static void config_intr(struct virtio_device *vdev)
struct port *port;
u16 rows, cols;
- vdev->config->get(vdev,
- offsetof(struct virtio_console_config, cols),
- &cols, sizeof(u16));
- vdev->config->get(vdev,
- offsetof(struct virtio_console_config, rows),
- &rows, sizeof(u16));
+ virtio_cread(vdev, struct virtio_console_config, cols, &cols);
+ virtio_cread(vdev, struct virtio_console_config, rows, &rows);
port = find_port_by_id(portdev, 0);
set_console_size(port, rows, cols);
@@ -2014,10 +2010,9 @@ static int virtcons_probe(struct virtio_device *vdev)
/* Don't test MULTIPORT at all if we're rproc: not a valid feature! */
if (!is_rproc_serial(vdev) &&
- virtio_config_val(vdev, VIRTIO_CONSOLE_F_MULTIPORT,
- offsetof(struct virtio_console_config,
- max_nr_ports),
- &portdev->config.max_nr_ports) == 0) {
+ virtio_cread_feature(vdev, VIRTIO_CONSOLE_F_MULTIPORT,
+ struct virtio_console_config, max_nr_ports,
+ &portdev->config.max_nr_ports) == 0) {
multiport = true;
}