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virtio: remove virtqueue_add_buf().

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All users changed to virtqueue_add_sg() or virtqueue_add_outbuf/inbuf.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2013-05-20 12:15:44 +09:30
parent 6865b32a86
commit b3087e48ce
2 changed files with 3 additions and 41 deletions
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37
drivers/virtio/virtio_ring.c
View File

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

7
include/linux/virtio.h
View File

@ -34,13 +34,6 @@ struct virtqueue {
void *priv;
};
int virtqueue_add_buf(struct virtqueue *vq,
struct scatterlist sg[],
unsigned int out_num,
unsigned int in_num,
void *data,
gfp_t gfp);
int virtqueue_add_outbuf(struct virtqueue *vq,
struct scatterlist sg[], unsigned int num,
void *data,