Re: [PATCH v9 27/32] virtio: add helper virtio_find_vqs_ctx_size()

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在 2022/4/6 上午11:43, Xuan Zhuo 写道:
Introduce helper virtio_find_vqs_ctx_size() to call find_vqs and specify
the maximum size of each vq ring.

Signed-off-by: Xuan Zhuo <xuanzhuo@xxxxxxxxxxxxxxxxx>


Acked-by: Jason Wang <jasowang@xxxxxxxxxx>


---
  include/linux/virtio_config.h | 12 ++++++++++++
  1 file changed, 12 insertions(+)

diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index 0f7def7ddfd2..22e29c926946 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -235,6 +235,18 @@ int virtio_find_vqs_ctx(struct virtio_device *vdev, unsigned nvqs,
  				      ctx, desc);
  }
+static inline
+int virtio_find_vqs_ctx_size(struct virtio_device *vdev, u32 nvqs,
+				 struct virtqueue *vqs[],
+				 vq_callback_t *callbacks[],
+				 const char * const names[],
+				 u32 sizes[],
+				 const bool *ctx, struct irq_affinity *desc)
+{
+	return vdev->config->find_vqs(vdev, nvqs, vqs, callbacks, names, sizes,
+				      ctx, desc);
+}
+
  /**
   * virtio_device_ready - enable vq use in probe function
   * @vdev: the device




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