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* [PATCH] media: mtk-jpeg: remove redundant initialization of variable plane_fmt
@ 2022-01-30 23:11 Colin Ian King
  2022-02-02  5:00 ` Dan Carpenter
  0 siblings, 1 reply; 2+ messages in thread
From: Colin Ian King @ 2022-01-30 23:11 UTC (permalink / raw)
  To: Rick Chang, Bin Liu, Mauro Carvalho Chehab, Matthias Brugger,
	linux-media, linux-arm-kernel, linux-mediatek
  Cc: kernel-janitors, linux-kernel

The variable plane_fmt is being initialized with a value that is never
read, it is being re-assigned a new value on each iteration of a for
loop. The initialization is redundant and can be removed.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
---
 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
index f332beb06d51..b334bbb2e682 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
@@ -681,7 +681,7 @@ static int mtk_jpeg_buf_prepare(struct vb2_buffer *vb)
 {
 	struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
 	struct mtk_jpeg_q_data *q_data = NULL;
-	struct v4l2_plane_pix_format plane_fmt = {};
+	struct v4l2_plane_pix_format plane_fmt;
 	int i;
 
 	q_data = mtk_jpeg_get_q_data(ctx, vb->vb2_queue->type);
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH] media: mtk-jpeg: remove redundant initialization of variable plane_fmt
  2022-01-30 23:11 [PATCH] media: mtk-jpeg: remove redundant initialization of variable plane_fmt Colin Ian King
@ 2022-02-02  5:00 ` Dan Carpenter
  0 siblings, 0 replies; 2+ messages in thread
From: Dan Carpenter @ 2022-02-02  5:00 UTC (permalink / raw)
  To: Colin Ian King
  Cc: Rick Chang, Bin Liu, Mauro Carvalho Chehab, Matthias Brugger,
	linux-media, linux-arm-kernel, linux-mediatek, kernel-janitors,
	linux-kernel

On Sun, Jan 30, 2022 at 11:11:11PM +0000, Colin Ian King wrote:
> The variable plane_fmt is being initialized with a value that is never
> read, it is being re-assigned a new value on each iteration of a for
> loop. The initialization is redundant and can be removed.
> 
> Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
> ---
>  drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
> index f332beb06d51..b334bbb2e682 100644
> --- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
> +++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
> @@ -681,7 +681,7 @@ static int mtk_jpeg_buf_prepare(struct vb2_buffer *vb)
>  {
>  	struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
>  	struct mtk_jpeg_q_data *q_data = NULL;
> -	struct v4l2_plane_pix_format plane_fmt = {};
> +	struct v4l2_plane_pix_format plane_fmt;

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>

This one is fine, but keep in mind that the other reason people do = {}
assignments is to zero out struct holes.  The assignment inside the loop
will not do that.

regards,
dan carpenter


^ permalink raw reply	[flat|nested] 2+ messages in thread

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2022-01-30 23:11 [PATCH] media: mtk-jpeg: remove redundant initialization of variable plane_fmt Colin Ian King
2022-02-02  5:00 ` Dan Carpenter

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