linux-kernel - [PATCH v2 3/9] media: mtk-vcodec: Do not zero reserved fields

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Date:   Tue, 12 Jan 2021 13:20:53 +0100
From:   Ricardo Ribalda <ribalda@...omium.org>
To:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        kieran.bingham+renesas@...asonboard.com,
        Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
Cc:     Ricardo Ribalda <ribalda@...omium.org>,
        Matthias Brugger <matthias.bgg@...il.com>
Subject: [PATCH v2 3/9] media: mtk-vcodec: Do not zero reserved fields

Core code already clears reserved fields of struct
v4l2_pix_format_mplane, check: 4e1e0eb0e074 ("media: v4l2-ioctl: Zero
v4l2_plane_pix_format reserved fields").

Cc: Matthias Brugger <matthias.bgg@...il.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
---
 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c | 5 -----
 drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c | 9 ---------
 2 files changed, 14 deletions(-)

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c
index c768a587a944..d746c41ea805 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c
@@ -715,12 +715,7 @@ static int vidioc_try_fmt(struct v4l2_format *f,
 		}
 	}
 
-	for (i = 0; i < pix_fmt_mp->num_planes; i++)
-		memset(&(pix_fmt_mp->plane_fmt[i].reserved[0]), 0x0,
-			   sizeof(pix_fmt_mp->plane_fmt[0].reserved));
-
 	pix_fmt_mp->flags = 0;
-	memset(&pix_fmt_mp->reserved, 0x0, sizeof(pix_fmt_mp->reserved));
 	return 0;
 }
 
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
index 21de1431cfcb..cb31556bcdf7 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
@@ -121,7 +121,6 @@ static int vidioc_enum_fmt(struct v4l2_fmtdesc *f,
 		return -EINVAL;
 
 	f->pixelformat = formats[f->index].fourcc;
-	memset(f->reserved, 0, sizeof(f->reserved));
 
 	return 0;
 }
@@ -320,13 +319,7 @@ static int vidioc_try_fmt(struct v4l2_format *f,
 		}
 	}
 
-	for (i = 0; i < pix_fmt_mp->num_planes; i++)
-		memset(&(pix_fmt_mp->plane_fmt[i].reserved[0]), 0x0,
-			   sizeof(pix_fmt_mp->plane_fmt[0].reserved));
-
 	pix_fmt_mp->flags = 0;
-	memset(&pix_fmt_mp->reserved, 0x0,
-		sizeof(pix_fmt_mp->reserved));
 
 	return 0;
 }
@@ -532,8 +525,6 @@ static int vidioc_venc_g_fmt(struct file *file, void *priv,
 	for (i = 0; i < pix->num_planes; i++) {
 		pix->plane_fmt[i].bytesperline = q_data->bytesperline[i];
 		pix->plane_fmt[i].sizeimage = q_data->sizeimage[i];
-		memset(&(pix->plane_fmt[i].reserved[0]), 0x0,
-		       sizeof(pix->plane_fmt[i].reserved));
 	}
 
 	pix->flags = 0;
-- 
2.30.0.284.gd98b1dd5eaa7-goog