V4L/DVB (13429): cx18: Add Memory Descriptor List (MDL) layer to buffer handling

Add a Memory Descriptor List (MDL) layer to buffer handling to implement
scatter-gather I/O.  Currently there is still only 1 buffer per MDL.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/media/video/cx18/cx18-streams.h b/drivers/media/video/cx18/cx18-streams.h
index 1afc3fd9d822..4a01db5e5a35 100644
--- a/drivers/media/video/cx18/cx18-streams.h
+++ b/drivers/media/video/cx18/cx18-streams.h
@@ -28,18 +28,18 @@ int cx18_streams_setup(struct cx18 *cx);
 int cx18_streams_register(struct cx18 *cx);
 void cx18_streams_cleanup(struct cx18 *cx, int unregister);
 
-/* Related to submission of buffers to firmware */
+/* Related to submission of mdls to firmware */
 static inline void cx18_stream_load_fw_queue(struct cx18_stream *s)
 {
         struct cx18 *cx = s->cx;
         queue_work(cx->out_work_queue, &s->out_work_order);
 }
 
-static inline void cx18_stream_put_buf_fw(struct cx18_stream *s,
-                                          struct cx18_buffer *buf)
+static inline void cx18_stream_put_mdl_fw(struct cx18_stream *s,
+                                          struct cx18_mdl *mdl)
 {
-        /* Put buf on q_free; the out work handler will move buf(s) to q_busy */
-        cx18_enqueue(s, buf, &s->q_free);
+        /* Put mdl on q_free; the out work handler will move mdl(s) to q_busy */
+        cx18_enqueue(s, mdl, &s->q_free);
         cx18_stream_load_fw_queue(s);
 }