diff options
| author | H. Peter Anvin <hpa@linux.intel.com> | 2014-10-24 13:26:37 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2014-10-24 13:26:37 -0700 |
| commit | db65bcfd9563a7531c3dd46c350565705be1fd84 (patch) | |
| tree | ff7b068472764e36ab02a739917e206dd11d6b46 /include/linux/virtio_config.h | |
| parent | b47dcbdc5161d3d5756f430191e2840d9b855492 (diff) | |
| parent | f114040e3ea6e07372334ade75d1ee0775c355e1 (diff) | |
Merge tag 'v3.18-rc1' into x86/urgent
Reason:
Need to apply audit patch on top of v3.18-rc1.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'include/linux/virtio_config.h')
| -rw-r--r-- | include/linux/virtio_config.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h index e8f8f71e843c..7f4ef66873ef 100644 --- a/include/linux/virtio_config.h +++ b/include/linux/virtio_config.h @@ -109,6 +109,23 @@ struct virtqueue *virtio_find_single_vq(struct virtio_device *vdev, return vq; } +/** + * virtio_device_ready - enable vq use in probe function + * @vdev: the device + * + * Driver must call this to use vqs in the probe function. + * + * Note: vqs are enabled automatically after probe returns. + */ +static inline +void virtio_device_ready(struct virtio_device *dev) +{ + unsigned status = dev->config->get_status(dev); + + BUG_ON(status & VIRTIO_CONFIG_S_DRIVER_OK); + dev->config->set_status(dev, status | VIRTIO_CONFIG_S_DRIVER_OK); +} + static inline const char *virtio_bus_name(struct virtio_device *vdev) { |