linux-kernel - [PATCH v3 05/10] media: rkvdec: h264: Remove SPS validation at streaming start

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Message-ID: <20231029183427.1781554-6-jonas@kwiboo.se>
Date:   Sun, 29 Oct 2023 18:34:12 +0000
From:   Jonas Karlman <jonas@...boo.se>
To:     Ezequiel Garcia <ezequiel@...guardiasur.com.ar>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>
Cc:     Alex Bee <knaerzche@...il.com>,
        Nicolas Dufresne <nicolas.dufresne@...labora.com>,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>,
        Sebastian Fricke <sebastian.fricke@...labora.com>,
        Christopher Obbard <chris.obbard@...labora.com>,
        linux-media@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Jonas Karlman <jonas@...boo.se>
Subject: [PATCH v3 05/10] media: rkvdec: h264: Remove SPS validation at streaming start

SPS parameters is validated in try_ctrl() ops so there is no need to
re-validate when streaming starts.

Remove the unnecessary call to validate sps at streaming start.

Suggested-by: Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
Signed-off-by: Jonas Karlman <jonas@...boo.se>
---
v3:
- New patch

 drivers/staging/media/rkvdec/rkvdec-h264.c | 19 ++-----------------
 1 file changed, 2 insertions(+), 17 deletions(-)

diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index 8bce8902b8dd..815d5359ddd5 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -1070,17 +1070,6 @@ static int rkvdec_h264_start(struct rkvdec_ctx *ctx)
 	struct rkvdec_dev *rkvdec = ctx->dev;
 	struct rkvdec_h264_priv_tbl *priv_tbl;
 	struct rkvdec_h264_ctx *h264_ctx;
-	struct v4l2_ctrl *ctrl;
-	int ret;
-
-	ctrl = v4l2_ctrl_find(&ctx->ctrl_hdl,
-			      V4L2_CID_STATELESS_H264_SPS);
-	if (!ctrl)
-		return -EINVAL;
-
-	ret = rkvdec_h264_validate_sps(ctx, ctrl->p_new.p_h264_sps);
-	if (ret)
-		return ret;
 
 	h264_ctx = kzalloc(sizeof(*h264_ctx), GFP_KERNEL);
 	if (!h264_ctx)
@@ -1089,8 +1078,8 @@ static int rkvdec_h264_start(struct rkvdec_ctx *ctx)
 	priv_tbl = dma_alloc_coherent(rkvdec->dev, sizeof(*priv_tbl),
 				      &h264_ctx->priv_tbl.dma, GFP_KERNEL);
 	if (!priv_tbl) {
-		ret = -ENOMEM;
-		goto err_free_ctx;
+		kfree(h264_ctx);
+		return -ENOMEM;
 	}
 
 	h264_ctx->priv_tbl.size = sizeof(*priv_tbl);
@@ -1100,10 +1089,6 @@ static int rkvdec_h264_start(struct rkvdec_ctx *ctx)
 
 	ctx->priv = h264_ctx;
 	return 0;
-
-err_free_ctx:
-	kfree(h264_ctx);
-	return ret;
 }
 
 static void rkvdec_h264_stop(struct rkvdec_ctx *ctx)
-- 
2.42.0