media: v4l2-mem2mem: Rename v4l2_m2m_buf_copy_data to v4l2_m2m_buf_copy_metadata

The v4l2_m2m_buf_copy_data helper is used to copy the buffer
metadata, such as its timestamp and its flags.

Therefore, the v4l2_m2m_buf_copy_metadata name is more clear
and avoids confusion with a payload data copy.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil-cisco@xs4all.nl: also fix cedrus_dec.c]
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/platform/vicodec/vicodec-core.c

@@ -199,7 +199,7 @@ static int device_process(struct vicodec_ctx *ctx,
 
 	dst_vb->sequence = q_dst->sequence++;
 	dst_vb->flags &= ~V4L2_BUF_FLAG_LAST;
-	v4l2_m2m_buf_copy_data(src_vb, dst_vb, !ctx->is_enc);
+	v4l2_m2m_buf_copy_metadata(src_vb, dst_vb, !ctx->is_enc);
 
 	return 0;
 }
@@ -414,7 +414,7 @@ static void set_last_buffer(struct vb2_v4l2_buffer *dst_buf,
 	vb2_set_plane_payload(&dst_buf->vb2_buf, 0, 0);
 	dst_buf->sequence = q_dst->sequence++;
 
-	v4l2_m2m_buf_copy_data(src_buf, dst_buf, !ctx->is_enc);
+	v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, !ctx->is_enc);
 	dst_buf->flags |= V4L2_BUF_FLAG_LAST;
 	v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE);
 }

drivers/media/platform/vim2m.c

@@ -432,7 +432,7 @@ static int device_process(struct vim2m_ctx *ctx,
 	out_vb->sequence = get_q_data(ctx,
 				      V4L2_BUF_TYPE_VIDEO_CAPTURE)->sequence++;
 	in_vb->sequence = q_data_in->sequence++;
-	v4l2_m2m_buf_copy_data(in_vb, out_vb, true);
+	v4l2_m2m_buf_copy_metadata(in_vb, out_vb, true);
 
 	if (ctx->mode & MEM2MEM_VFLIP) {
 		start = height - 1;

drivers/media/v4l2-core/v4l2-mem2mem.c

@@ -975,7 +975,7 @@ void v4l2_m2m_buf_queue(struct v4l2_m2m_ctx *m2m_ctx,
 }
 EXPORT_SYMBOL_GPL(v4l2_m2m_buf_queue);
 
-void v4l2_m2m_buf_copy_data(const struct vb2_v4l2_buffer *out_vb,
+void v4l2_m2m_buf_copy_metadata(const struct vb2_v4l2_buffer *out_vb,
 				struct vb2_v4l2_buffer *cap_vb,
 				bool copy_frame_flags)
 {
@@ -993,7 +993,7 @@ void v4l2_m2m_buf_copy_data(const struct vb2_v4l2_buffer *out_vb,
 	cap_vb->flags &= ~mask;
 	cap_vb->flags |= out_vb->flags & mask;
 }
-EXPORT_SYMBOL_GPL(v4l2_m2m_buf_copy_data);
+EXPORT_SYMBOL_GPL(v4l2_m2m_buf_copy_metadata);
 
 void v4l2_m2m_request_queue(struct media_request *req)
 {

drivers/staging/media/sunxi/cedrus/cedrus_dec.c

@@ -50,7 +50,7 @@ void cedrus_device_run(void *priv)
 		break;
 	}
 
-	v4l2_m2m_buf_copy_data(run.src, run.dst, true);
+	v4l2_m2m_buf_copy_metadata(run.src, run.dst, true);
 
 	dev->dec_ops[ctx->current_codec]->setup(ctx, &run);
 

include/media/v4l2-mem2mem.h

@@ -623,11 +623,11 @@ v4l2_m2m_dst_buf_remove_by_idx(struct v4l2_m2m_ctx *m2m_ctx, unsigned int idx)
 }
 
 /**
- * v4l2_m2m_buf_copy_data() - copy buffer data from the output buffer to the
- * capture buffer
+ * v4l2_m2m_buf_copy_metadata() - copy buffer metadata from
+ * the output buffer to the capture buffer
  *
- * @out_vb: the output buffer that is the source of the data.
- * @cap_vb: the capture buffer that will receive the data.
+ * @out_vb: the output buffer that is the source of the metadata.
+ * @cap_vb: the capture buffer that will receive the metadata.
  * @copy_frame_flags: copy the KEY/B/PFRAME flags as well.
  *
  * This helper function copies the timestamp, timecode (if the TIMECODE
@@ -638,7 +638,7 @@ v4l2_m2m_dst_buf_remove_by_idx(struct v4l2_m2m_ctx *m2m_ctx, unsigned int idx)
  * flags are not copied. This is typically needed for encoders that
  * set this bits explicitly.
  */
-void v4l2_m2m_buf_copy_data(const struct vb2_v4l2_buffer *out_vb,
+void v4l2_m2m_buf_copy_metadata(const struct vb2_v4l2_buffer *out_vb,
 				struct vb2_v4l2_buffer *cap_vb,
 				bool copy_frame_flags);