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path: root/drivers/staging/android/ion/ion.c
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Diffstat (limited to 'drivers/staging/android/ion/ion.c')
-rw-r--r--drivers/staging/android/ion/ion.c76
1 files changed, 0 insertions, 76 deletions
diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
index 125c537..3d979ef 100644
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -274,24 +274,6 @@ int ion_handle_put(struct ion_handle *handle)
return ret;
}
-static struct ion_handle *ion_handle_lookup(struct ion_client *client,
- struct ion_buffer *buffer)
-{
- struct rb_node *n = client->handles.rb_node;
-
- while (n) {
- struct ion_handle *entry = rb_entry(n, struct ion_handle, node);
-
- if (buffer < entry->buffer)
- n = n->rb_left;
- else if (buffer > entry->buffer)
- n = n->rb_right;
- else
- return entry;
- }
- return ERR_PTR(-EINVAL);
-}
-
struct ion_handle *ion_handle_get_by_id_nolock(struct ion_client *client,
int id)
{
@@ -1023,64 +1005,6 @@ int ion_share_dma_buf_fd(struct ion_client *client, struct ion_handle *handle)
}
EXPORT_SYMBOL(ion_share_dma_buf_fd);
-struct ion_handle *ion_import_dma_buf(struct ion_client *client,
- struct dma_buf *dmabuf)
-{
- struct ion_buffer *buffer;
- struct ion_handle *handle;
- int ret;
-
- /* if this memory came from ion */
-
- if (dmabuf->ops != &dma_buf_ops) {
- pr_err("%s: can not import dmabuf from another exporter\n",
- __func__);
- return ERR_PTR(-EINVAL);
- }
- buffer = dmabuf->priv;
-
- mutex_lock(&client->lock);
- /* if a handle exists for this buffer just take a reference to it */
- handle = ion_handle_lookup(client, buffer);
- if (!IS_ERR(handle)) {
- ion_handle_get(handle);
- mutex_unlock(&client->lock);
- goto end;
- }
-
- handle = ion_handle_create(client, buffer);
- if (IS_ERR(handle)) {
- mutex_unlock(&client->lock);
- goto end;
- }
-
- ret = ion_handle_add(client, handle);
- mutex_unlock(&client->lock);
- if (ret) {
- ion_handle_put(handle);
- handle = ERR_PTR(ret);
- }
-
-end:
- return handle;
-}
-EXPORT_SYMBOL(ion_import_dma_buf);
-
-struct ion_handle *ion_import_dma_buf_fd(struct ion_client *client, int fd)
-{
- struct dma_buf *dmabuf;
- struct ion_handle *handle;
-
- dmabuf = dma_buf_get(fd);
- if (IS_ERR(dmabuf))
- return ERR_CAST(dmabuf);
-
- handle = ion_import_dma_buf(client, dmabuf);
- dma_buf_put(dmabuf);
- return handle;
-}
-EXPORT_SYMBOL(ion_import_dma_buf_fd);
-
int ion_query_heaps(struct ion_client *client, struct ion_heap_query *query)
{
struct ion_device *dev = client->dev;
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