V4L/DVB (13428): cx18: Rename mdl_offset to mdl_base_idx or free_mdl_idx as appropriate

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

drivers/media/video/cx18/cx18-driver.h

@@ -337,7 +337,7 @@ struct cx18_stream {
 	const char *name;		/* name of the stream */
 	int type;			/* stream type */
 	u32 handle;			/* task handle */
-	unsigned mdl_offset;
+	unsigned int mdl_base_idx;
 
 	u32 id;
 	unsigned long s_flags;	/* status flags, see above */
@@ -514,7 +514,7 @@ struct cx18 {
 	u16 buffer_id;		/* buffer ID counter */
 	u32 v4l2_cap;		/* V4L2 capabilities of card */
 	u32 hw_flags; 		/* Hardware description of the board */
-	unsigned mdl_offset;
+	unsigned int free_mdl_idx;
 	struct cx18_scb __iomem *scb; /* pointer to SCB */
 	struct mutex epu2apu_mb_lock; /* protect driver to chip mailbox in SCB*/
 	struct mutex epu2cpu_mb_lock; /* protect driver to chip mailbox in SCB*/

drivers/media/video/cx18/cx18-mailbox.c

@@ -178,8 +178,8 @@ static void epu_dma_done(struct cx18 *cx, struct cx18_in_work_order *order)
 		 * and send them back to q_free for fw rotation eventually.
 		 */
 		if ((order->flags & CX18_F_EWO_MB_STALE_UPON_RECEIPT) &&
-		    !(id >= s->mdl_offset &&
-		      id < (s->mdl_offset + s->buffers))) {
+		    !(id >= s->mdl_base_idx &&
+		      id < (s->mdl_base_idx + s->buffers))) {
 			CX18_WARN("Fell behind! Ignoring stale mailbox with "
 				  " inconsistent data. Lost buffer for mailbox "
 				  "seq no %d\n", mb->request);

drivers/media/video/cx18/cx18-queue.c

@@ -194,7 +194,7 @@ int cx18_stream_alloc(struct cx18_stream *s)
 		s->name, s->buffers, s->buf_size,
 		s->buffers * s->buf_size / 1024);
 
-	if (((char __iomem *)&cx->scb->cpu_mdl[cx->mdl_offset + s->buffers] -
+	if (((char __iomem *)&cx->scb->cpu_mdl[cx->free_mdl_idx + s->buffers] -
 				(char __iomem *)cx->scb) > SCB_RESERVED_SIZE) {
 		unsigned bufsz = (((char __iomem *)cx->scb) + SCB_RESERVED_SIZE -
 					((char __iomem *)cx->scb->cpu_mdl));
@@ -205,7 +205,7 @@ int cx18_stream_alloc(struct cx18_stream *s)
 		return -ENOMEM;
 	}
 
-	s->mdl_offset = cx->mdl_offset;
+	s->mdl_base_idx = cx->free_mdl_idx;
 
 	/* allocate stream buffers. Initially all buffers are in q_free. */
 	for (i = 0; i < s->buffers; i++) {
@@ -227,7 +227,7 @@ int cx18_stream_alloc(struct cx18_stream *s)
 		cx18_enqueue(s, buf, &s->q_free);
 	}
 	if (i == s->buffers) {
-		cx->mdl_offset += s->buffers;
+		cx->free_mdl_idx += s->buffers;
 		return 0;
 	}
 	CX18_ERR("Couldn't allocate buffers for %s stream\n", s->name);