linux-kernel - [PATCH 1/2] vdpa/mlx5: Update Control VQ callback information

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Date:   Mon, 13 Jun 2022 10:59:57 +0300
From:   Eli Cohen <elic@...dia.com>
To:     <mst@...hat.com>, <jasowang@...hat.com>, <eperezma@...hat.com>
CC:     <virtualization@...ts.linux-foundation.org>,
        <linux-kernel@...r.kernel.org>, <si-wei.liu@...cle.com>,
        Eli Cohen <elic@...dia.com>
Subject: [PATCH 1/2] vdpa/mlx5: Update Control VQ callback information

The control VQ specific information is stored in the dedicated struct
mlx5_control_vq. When the callback is updated through
mlx5_vdpa_set_vq_cb(), make sure to update the control VQ struct.

Fixes: 5262912ef3cf ("vdpa/mlx5: Add support for control VQ and MAC setting")
Signed-off-by: Eli Cohen <elic@...dia.com>
---
 drivers/vdpa/mlx5/net/mlx5_vnet.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index 1b6d46b86f81..789c078ff1af 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -1962,6 +1962,8 @@ static void mlx5_vdpa_set_vq_cb(struct vdpa_device *vdev, u16 idx, struct vdpa_c
 	struct mlx5_vdpa_net *ndev = to_mlx5_vdpa_ndev(mvdev);
 
 	ndev->event_cbs[idx] = *cb;
+	if (is_ctrl_vq_idx(mvdev, idx))
+		mvdev->cvq.event_cb = *cb;
 }
 
 static void mlx5_cvq_notify(struct vringh *vring)
-- 
2.35.1