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staging: android: ion: Get rid of ion_sg_table

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The ion_sg_table interface is mostly a reimplementation of
what dma_buf is doing. Clients should be using dma_buf APIs instead.

Signed-off-by: Laura Abbott <labbott@redhat.com>
Reviewed-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Laura Abbott 2016-08-08 09:52:54 -07:00 committed by Greg Kroah-Hartman
parent 803394d03b
commit c7df077b6d
2 changed files with 0 additions and 31 deletions
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20
drivers/staging/android/ion/ion.c
View File

@ -917,26 +917,6 @@ void ion_client_destroy(struct ion_client *client)
}
EXPORT_SYMBOL(ion_client_destroy);
struct sg_table *ion_sg_table(struct ion_client *client,
struct ion_handle *handle)
{
struct ion_buffer *buffer;
struct sg_table *table;
mutex_lock(&client->lock);
if (!ion_handle_validate(client, handle)) {
pr_err("%s: invalid handle passed to map_dma.\n",
__func__);
mutex_unlock(&client->lock);
return ERR_PTR(-EINVAL);
}
buffer = handle->buffer;
table = buffer->sg_table;
mutex_unlock(&client->lock);
return table;
}
EXPORT_SYMBOL(ion_sg_table);
static void ion_buffer_sync_for_device(struct ion_buffer *buffer,
struct device *dev,
enum dma_data_direction direction);

11
drivers/staging/android/ion/ion.h
View File

@ -148,17 +148,6 @@ void ion_free(struct ion_client *client, struct ion_handle *handle);
int ion_phys(struct ion_client *client, struct ion_handle *handle,
ion_phys_addr_t *addr, size_t *len);
/**
* ion_map_dma - return an sg_table describing a handle
* @client: the client
* @handle: the handle
*
* This function returns the sg_table describing
* a particular ion handle.
*/
struct sg_table *ion_sg_table(struct ion_client *client,
struct ion_handle *handle);
/**
* ion_map_kernel - create mapping for the given handle
* @client: the client