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From:   Gautam Dawar <gautam.dawar@xilinx.com>
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Subject: [RFC PATCH v2 02/19] virtio-vdpa: don't set callback if virtio doesn't need it
Date:   Fri, 25 Feb 2022 02:52:42 +0530
Message-ID: <20220224212314.1326-3-gdawar@xilinx.com>
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References: <20201216064818.48239-1-jasowang@redhat.com>
 <20220224212314.1326-1-gdawar@xilinx.com>
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There's no need for setting callbacks for the driver that doesn't care
about that.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Gautam Dawar <gdawar@xilinx.com>
---
 drivers/virtio/virtio_vdpa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/virtio/virtio_vdpa.c b/drivers/virtio/virtio_vdpa.c
index 7767a7f0119b..bc74ba5fa717 100644
--- a/drivers/virtio/virtio_vdpa.c
+++ b/drivers/virtio/virtio_vdpa.c
@@ -184,7 +184,7 @@ virtio_vdpa_setup_vq(struct virtio_device *vdev, unsigned int index,
 	}
 
 	/* Setup virtqueue callback */
-	cb.callback = virtio_vdpa_virtqueue_cb;
+	cb.callback = callback ? virtio_vdpa_virtqueue_cb : NULL;
 	cb.private = info;
 	ops->set_vq_cb(vdpa, index, &cb);
 	ops->set_vq_num(vdpa, index, virtqueue_get_vring_size(vq));
-- 
2.25.0