Re: [PATCH] vdpa/mlx5: Avoid executing set_vq_ready() if device is reset
From: Jason Wang <hidden>
Date: 2021-09-14 02:54:52
On Thu, Sep 9, 2021 at 2:37 PM Eli Cohen [off-list ref] wrote:
Avoid executing set_vq_ready() if the device has been reset. In such
case, the features are cleared and cannot be used in conditional
statements. Such reference happens is the function ctrl_vq_idx().
Fixes: 9c90709cf8e7 ("vdpa/mlx5: Add multiqueue support")
Signed-off-by: Eli Cohen <redacted>Acked-by: Jason Wang <redacted>
quoted hunk
--- drivers/vdpa/mlx5/net/mlx5_vnet.c | 3 +++ 1 file changed, 3 insertions(+)diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c index 64dfd0f500d2..bd56de7484dc 100644 --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c@@ -1714,6 +1714,9 @@ static void mlx5_vdpa_set_vq_ready(struct vdpa_device *vdev, u16 idx, bool ready struct mlx5_vdpa_net *ndev = to_mlx5_vdpa_ndev(mvdev); struct mlx5_vdpa_virtqueue *mvq; + if (!mvdev->actual_features) + return; + if (!is_index_valid(mvdev, idx)) return; --2.32.0
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