linux-kernel - [PATCH AUTOSEL 4.19 043/177] media: ti-vpe: vpe: fix a v4l2-compliance failure about frame sequence number

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Date:   Tue, 10 Dec 2019 16:30:07 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Benoit Parrot <bparrot@...com>,
        Tomi Valkeinen <tomi.valkeinen@...com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Sasha Levin <sashal@...nel.org>, linux-media@...r.kernel.org
Subject: [PATCH AUTOSEL 4.19 043/177] media: ti-vpe: vpe: fix a v4l2-compliance failure about frame sequence number

From: Benoit Parrot <bparrot@...com>

[ Upstream commit 2444846c0dbfa4ead21b621e4300ec32c90fbf38 ]

v4l2-compliance fails with this message:

   fail: v4l2-test-buffers.cpp(294): \
	(int)g_sequence() < seq.last_seq + 1
   fail: v4l2-test-buffers.cpp(740): \
	buf.check(m2m_q, last_m2m_seq)
   fail: v4l2-test-buffers.cpp(974): \
	captureBufs(node, q, m2m_q, frame_count, true)
   test MMAP: FAIL

The driver is failing to update the source frame sequence number in the
vb2 buffer object. Only the destination frame sequence was being
updated.

This is only a reporting issue if the user space app actually cares
about the frame sequence number. But it is fixed nonetheless.

Signed-off-by: Benoit Parrot <bparrot@...com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@...com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@...all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/media/platform/ti-vpe/vpe.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/platform/ti-vpe/vpe.c b/drivers/media/platform/ti-vpe/vpe.c
index 76d699e94b001..15f0b0bb89c0e 100644
--- a/drivers/media/platform/ti-vpe/vpe.c
+++ b/drivers/media/platform/ti-vpe/vpe.c
@@ -1431,6 +1431,7 @@ static irqreturn_t vpe_irq(int irq_vpe, void *data)
 		d_vb->timecode = s_vb->timecode;
 
 	d_vb->sequence = ctx->sequence;
+	s_vb->sequence = ctx->sequence;
 
 	d_q_data = &ctx->q_data[Q_DATA_DST];
 	if (d_q_data->flags & Q_IS_INTERLACED) {
-- 
2.20.1