[PATCH 1/5] staging: android: ion: Get rid of ion_sg_table

From: Laura Abbott
Date: Fri Jun 17 2016 - 15:57:01 EST



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@xxxxxxxxxx>
---
drivers/staging/android/ion/ion.c | 20 --------------------
drivers/staging/android/ion/ion.h | 11 -----------
2 files changed, 31 deletions(-)

diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
index a2cf93b..95b18ac 100644
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -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);
diff --git a/drivers/staging/android/ion/ion.h b/drivers/staging/android/ion/ion.h
index a1331fc..225c34a 100644
--- a/drivers/staging/android/ion/ion.h
+++ b/drivers/staging/android/ion/ion.h
@@ -149,17 +149,6 @@ 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
* @handle: handle to map
--
2.5.5