From: Zahari Doychev <zahari.doychev@linux.com>
Date: Mon, 3 Aug 2015 11:57:19 +0000 (-0300)
Subject: [media] coda: drop zero payload bitstream buffers
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=5473387b9382a35967d1fcd550482efa3a31d44f;p=deliverable%2Flinux.git

[media] coda: drop zero payload bitstream buffers

The buffers with zero payload are now dumped in coda_fill_bitstream and not
passed to coda_bitstream_queue. This avoids unnecessary fifo addition and
buffer sequence counter increment.

Signed-off-by: Zahari Doychev <zahari.doychev@linux.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---

diff --git a/drivers/media/platform/coda/coda-bit.c b/drivers/media/platform/coda/coda-bit.c
index 3d434a4ed537..fd7819d8922d 100644
--- a/drivers/media/platform/coda/coda-bit.c
+++ b/drivers/media/platform/coda/coda-bit.c
@@ -256,6 +256,13 @@ void coda_fill_bitstream(struct coda_ctx *ctx, bool streaming)
 			continue;
 		}
 
+		/* Dump empty buffers */
+		if (!vb2_get_plane_payload(src_buf, 0)) {
+			src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+			v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
+			continue;
+		}
+
 		/* Buffer start position */
 		start = ctx->bitstream_fifo.kfifo.in &
 			ctx->bitstream_fifo.kfifo.mask;