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Subject[PATCH 1/5] vhost-vdpa: refine ioctl pre-processing
Date
Switch to use 'switch' to make the codes more easier to be extended.

Signed-off-by: Jason Wang <jasowang@redhat.com>
---
drivers/vhost/vdpa.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index 77a0c9fb6cc3..db4c9cb44c61 100644
--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -353,15 +353,16 @@ static long vhost_vdpa_vring_ioctl(struct vhost_vdpa *v, unsigned int cmd,
idx = array_index_nospec(idx, v->nvqs);
vq = &v->vqs[idx];

- if (cmd == VHOST_VDPA_SET_VRING_ENABLE) {
+ switch (cmd) {
+ case VHOST_VDPA_SET_VRING_ENABLE:
if (copy_from_user(&s, argp, sizeof(s)))
return -EFAULT;
ops->set_vq_ready(vdpa, idx, s.num);
return 0;
- }
-
- if (cmd == VHOST_GET_VRING_BASE)
+ case VHOST_GET_VRING_BASE:
vq->last_avail_idx = ops->get_vq_state(v->vdpa, idx);
+ break;
+ }

r = vhost_vring_ioctl(&v->vdev, cmd, argp);
if (r)
--
2.20.1
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