linux-kernel - [PATCH 5.18 052/102] vdpa/mlx5: Update Control VQ callback information

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Message-Id: <20220705115619.883641836@linuxfoundation.org>
Date:   Tue,  5 Jul 2022 13:58:18 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Eli Cohen <elic@...dia.com>,
        "Michael S. Tsirkin" <mst@...hat.com>
Subject: [PATCH 5.18 052/102] vdpa/mlx5: Update Control VQ callback information

From: Eli Cohen <elic@...dia.com>

commit 40f2f3e94178d45e4ee6078effba2dfc76f6f5ba upstream.

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>
Message-Id: <20220613075958.511064-1-elic@...dia.com>
Signed-off-by: Michael S. Tsirkin <mst@...hat.com>
Acked-by: Jason Wang <jasowang@...hat.com)
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/vdpa/mlx5/net/mlx5_vnet.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -1757,6 +1757,8 @@ static void mlx5_vdpa_set_vq_cb(struct v
 	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)