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| author | Steve Sistare <steven.sistare@oracle.com> | 2024-02-13 06:25:58 -0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2024-03-19 02:45:49 -0400 |
| commit | c4e8b5aed7cd18bb8377b6dd461e336688c5d503 (patch) | |
| tree | 8c2e2128c1806348f18b36d9c9cf1bf6d1f34129 /drivers/vhost | |
| parent | 310227f42882c52356b523e2f4e11690eebcd2ab (diff) | |
| download | lwn-c4e8b5aed7cd18bb8377b6dd461e336688c5d503.tar.gz lwn-c4e8b5aed7cd18bb8377b6dd461e336688c5d503.zip | |
vdpa: skip suspend/resume ops if not DRIVER_OK
If a vdpa device is not in state DRIVER_OK, then there is no driver state
to preserve, so no need to call the suspend and resume driver ops.
Suggested-by: Eugenio Perez Martin <eperezma@redhat.com>"
Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Message-Id: <1707834358-165470-1-git-send-email-steven.sistare@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>
Diffstat (limited to 'drivers/vhost')
| -rw-r--r-- | drivers/vhost/vdpa.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index bc4a51e4638b..aef92a7c57f3 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -595,6 +595,9 @@ static long vhost_vdpa_suspend(struct vhost_vdpa *v) const struct vdpa_config_ops *ops = vdpa->config; int ret; + if (!(ops->get_status(vdpa) & VIRTIO_CONFIG_S_DRIVER_OK)) + return 0; + if (!ops->suspend) return -EOPNOTSUPP; @@ -615,6 +618,9 @@ static long vhost_vdpa_resume(struct vhost_vdpa *v) const struct vdpa_config_ops *ops = vdpa->config; int ret; + if (!(ops->get_status(vdpa) & VIRTIO_CONFIG_S_DRIVER_OK)) + return 0; + if (!ops->resume) return -EOPNOTSUPP; |