Thread (10 messages) 10 messages, 2 authors, 2023-02-18
STALE1245d
Revisions (6)
  1. v4 [diff vs current]
  2. v5 [diff vs current]
  3. v6 [diff vs current]
  4. v7 [diff vs current]
  5. v8 current
  6. v9 [diff vs current]

[PATCH v8 2/6] media: verisilicon: Do not use ctx fields as format storage when resetting

From: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Date: 2023-02-03 09:17:28
Also in: linux-media, linux-rockchip, lkml
Subsystem: hantro vpu codec driver, media input infrastructure (v4l/dvb), the rest · Maintainers: Nicolas Dufresne, Benjamin Gaignard, Philipp Zabel, Mauro Carvalho Chehab, Linus Torvalds

Source and destination pixel formats fields of context structure should
not be used as storage when resetting the format.
Use local variables instead and let hantro_set_fmt_out() and
hantro_set_fmt_cap() set them correctly later.

Fixes: dc39473d0340 ("media: hantro: imx8m: Enable 10bit decoding")

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
 .../media/platform/verisilicon/hantro_v4l2.c  | 40 +++++++++----------
 1 file changed, 18 insertions(+), 22 deletions(-)
diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c
index 33cb865238de..e60151a8a401 100644
--- a/drivers/media/platform/verisilicon/hantro_v4l2.c
+++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
@@ -377,47 +377,43 @@ static void
 hantro_reset_encoded_fmt(struct hantro_ctx *ctx)
 {
 	const struct hantro_fmt *vpu_fmt;
-	struct v4l2_pix_format_mplane *fmt;
+	struct v4l2_pix_format_mplane fmt;
 
 	vpu_fmt = hantro_get_default_fmt(ctx, true);
+	if (!vpu_fmt)
+		return;
 
+	hantro_reset_fmt(&fmt, vpu_fmt);
+	fmt.width = vpu_fmt->frmsize.min_width;
+	fmt.height = vpu_fmt->frmsize.min_height;
 	if (ctx->is_encoder)
-		fmt = &ctx->dst_fmt;
-	else
-		fmt = &ctx->src_fmt;
-
-	hantro_reset_fmt(fmt, vpu_fmt);
-	fmt->width = vpu_fmt->frmsize.min_width;
-	fmt->height = vpu_fmt->frmsize.min_height;
-	if (ctx->is_encoder)
-		hantro_set_fmt_cap(ctx, fmt);
+		hantro_set_fmt_cap(ctx, &fmt);
 	else
-		hantro_set_fmt_out(ctx, fmt);
+		hantro_set_fmt_out(ctx, &fmt);
 }
 
 static void
 hantro_reset_raw_fmt(struct hantro_ctx *ctx)
 {
 	const struct hantro_fmt *raw_vpu_fmt;
-	struct v4l2_pix_format_mplane *raw_fmt, *encoded_fmt;
+	struct v4l2_pix_format_mplane raw_fmt, *encoded_fmt;
 
 	raw_vpu_fmt = hantro_get_default_fmt(ctx, false);
+	if (!raw_vpu_fmt)
+		return;
 
-	if (ctx->is_encoder) {
-		raw_fmt = &ctx->src_fmt;
+	if (ctx->is_encoder)
 		encoded_fmt = &ctx->dst_fmt;
-	} else {
-		raw_fmt = &ctx->dst_fmt;
+	else
 		encoded_fmt = &ctx->src_fmt;
-	}
 
-	hantro_reset_fmt(raw_fmt, raw_vpu_fmt);
-	raw_fmt->width = encoded_fmt->width;
-	raw_fmt->height = encoded_fmt->height;
+	hantro_reset_fmt(&raw_fmt, raw_vpu_fmt);
+	raw_fmt.width = encoded_fmt->width;
+	raw_fmt.height = encoded_fmt->height;
 	if (ctx->is_encoder)
-		hantro_set_fmt_out(ctx, raw_fmt);
+		hantro_set_fmt_out(ctx, &raw_fmt);
 	else
-		hantro_set_fmt_cap(ctx, raw_fmt);
+		hantro_set_fmt_cap(ctx, &raw_fmt);
 }
 
 void hantro_reset_fmts(struct hantro_ctx *ctx)
-- 
2.34.1


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