linux-kernel - [PATCH v6 02/14] media: mtk-vcodec: vdec: use helpers in VIDIOC_(TRY_)DECODER

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Date:   Mon,  5 Jul 2021 14:32:46 +0900
From:   Alexandre Courbot <acourbot@...omium.org>
To:     Tiffany Lin <tiffany.lin@...iatek.com>,
        Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Dafna Hirschfeld <dafna.hirschfeld@...labora.com>,
        Yunfei Dong <yunfei.dong@...iatek.com>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mediatek@...ts.infradead.org,
        Alexandre Courbot <acourbot@...omium.org>,
        Tzung-Bi Shih <tzungbi@...gle.com>
Subject: [PATCH v6 02/14] media: mtk-vcodec: vdec: use helpers in VIDIOC_(TRY_)DECODER_CMD

Let's use the dedicated helpers to make sure we get the expected
behavior and remove redundant code.

Signed-off-by: Alexandre Courbot <acourbot@...omium.org>
Reviewed-by: Tzung-Bi Shih <tzungbi@...gle.com>
---
 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c
index 8df8bcfe5e9c..1a633b485a69 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c
@@ -484,18 +484,7 @@ static void mtk_vdec_worker(struct work_struct *work)
 static int vidioc_try_decoder_cmd(struct file *file, void *priv,
 				struct v4l2_decoder_cmd *cmd)
 {
-	switch (cmd->cmd) {
-	case V4L2_DEC_CMD_STOP:
-	case V4L2_DEC_CMD_START:
-		if (cmd->flags != 0) {
-			mtk_v4l2_err("cmd->flags=%u", cmd->flags);
-			return -EINVAL;
-		}
-		break;
-	default:
-		return -EINVAL;
-	}
-	return 0;
+	return v4l2_m2m_ioctl_try_decoder_cmd(file, priv, cmd);
 }
 
 
-- 
2.32.0.93.g670b81a890-goog