summaryrefslogtreecommitdiffstats
path: root/drivers/vdpa/vdpa_sim
diff options
context:
space:
mode:
authorEli Cohen <eli@mellanox.com>2020-08-04 19:20:44 +0300
committerMichael S. Tsirkin <mst@redhat.com>2020-08-05 19:00:23 -0400
commit23750e39d57433d0e3d89658f0bc448f9c42ff49 (patch)
tree9f377ffa73d12ea6d7b8c8a9196f5250e923eb2b /drivers/vdpa/vdpa_sim
parentaac50c0bd434794b9950181349099e709ca4edad (diff)
downloadlinux-23750e39d57433d0e3d89658f0bc448f9c42ff49.tar.bz2
vdpa: Modify get_vq_state() to return error code
Modify get_vq_state() so it returns an error code. In case of hardware acceleration, the available index may be retrieved from the device, an operation that can possibly fail. Reviewed-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Link: https://lore.kernel.org/r/20200804162048.22587-9-eli@mellanox.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'drivers/vdpa/vdpa_sim')
-rw-r--r--drivers/vdpa/vdpa_sim/vdpa_sim.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index c93126ad09d1..df3224b138ee 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
@@ -464,14 +464,15 @@ static int vdpasim_set_vq_state(struct vdpa_device *vdpa, u16 idx,
return 0;
}
-static void vdpasim_get_vq_state(struct vdpa_device *vdpa, u16 idx,
- struct vdpa_vq_state *state)
+static int vdpasim_get_vq_state(struct vdpa_device *vdpa, u16 idx,
+ struct vdpa_vq_state *state)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
struct vringh *vrh = &vq->vring;
state->avail_index = vrh->last_avail_idx;
+ return 0;
}
static u32 vdpasim_get_vq_align(struct vdpa_device *vdpa)