virtio: remove virtqueue_add_buf().
All users changed to virtqueue_add_sg() or virtqueue_add_outbuf/inbuf. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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@ -295,37 +295,6 @@ add_head:
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return 0;
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}
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/**
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* virtqueue_add_buf - expose buffer to other end
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* @vq: the struct virtqueue we're talking about.
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* @sg: the description of the buffer(s).
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* @out_num: the number of sg readable by other side
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* @in_num: the number of sg which are writable (after readable ones)
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* @data: the token identifying the buffer.
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* @gfp: how to do memory allocations (if necessary).
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*
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* Caller must ensure we don't call this with other virtqueue operations
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* at the same time (except where noted).
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*
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* Returns zero or a negative error (ie. ENOSPC, ENOMEM).
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*/
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int virtqueue_add_buf(struct virtqueue *_vq,
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struct scatterlist sg[],
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unsigned int out,
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unsigned int in,
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void *data,
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gfp_t gfp)
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{
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struct scatterlist *sgs[2];
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sgs[0] = sg;
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sgs[1] = sg + out;
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return virtqueue_add(_vq, sgs, sg_next_arr,
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out, in, out ? 1 : 0, in ? 1 : 0, data, gfp);
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}
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EXPORT_SYMBOL_GPL(virtqueue_add_buf);
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/**
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* virtqueue_add_sgs - expose buffers to other end
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* @vq: the struct virtqueue we're talking about.
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@ -473,7 +442,7 @@ EXPORT_SYMBOL_GPL(virtqueue_notify);
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* virtqueue_kick - update after add_buf
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* @vq: the struct virtqueue
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*
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* After one or more virtqueue_add_buf calls, invoke this to kick
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* After one or more virtqueue_add_* calls, invoke this to kick
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* the other side.
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*
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* Caller must ensure we don't call this with other virtqueue
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@ -530,7 +499,7 @@ static inline bool more_used(const struct vring_virtqueue *vq)
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* operations at the same time (except where noted).
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*
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* Returns NULL if there are no used buffers, or the "data" token
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* handed to virtqueue_add_buf().
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* handed to virtqueue_add_*().
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*/
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void *virtqueue_get_buf(struct virtqueue *_vq, unsigned int *len)
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{
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@ -685,7 +654,7 @@ EXPORT_SYMBOL_GPL(virtqueue_enable_cb_delayed);
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* virtqueue_detach_unused_buf - detach first unused buffer
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* @vq: the struct virtqueue we're talking about.
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*
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* Returns NULL or the "data" token handed to virtqueue_add_buf().
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* Returns NULL or the "data" token handed to virtqueue_add_*().
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* This is not valid on an active queue; it is useful only for device
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* shutdown.
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*/
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@ -34,13 +34,6 @@ struct virtqueue {
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void *priv;
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};
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int virtqueue_add_buf(struct virtqueue *vq,
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struct scatterlist sg[],
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unsigned int out_num,
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unsigned int in_num,
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void *data,
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gfp_t gfp);
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int virtqueue_add_outbuf(struct virtqueue *vq,
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struct scatterlist sg[], unsigned int num,
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void *data,
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