linux-kernel - Re: [PATCH v2 16/26] media: au0828: Use min macro

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Date: Wed, 24 Apr 2024 13:03:39 +0200
From: Hans Verkuil <hverkuil@...all.nl>
To: Ricardo Ribalda <ribalda@...omium.org>,
 Martin Tuma <martin.tuma@...iteqautomotive.com>,
 Mauro Carvalho Chehab <mchehab@...nel.org>,
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 Alexandre Torgue <alexandre.torgue@...s.st.com>,
 Paul Kocialkowski <paul.kocialkowski@...tlin.com>,
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 <wens@...e.org>, Jernej Skrabec <jernej.skrabec@...il.com>,
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Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-stm32@...md-mailman.stormreply.com,
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Subject: Re: [PATCH v2 16/26] media: au0828: Use min macro

nitpick: subject should say "Use umin macro".

	Hans

On 19/04/2024 11:48, Ricardo Ribalda wrote:
> Simplifies the code.
> 
> Found by cocci:
> drivers/media/usb/au0828/au0828-video.c:605:11-12: WARNING opportunity for min()
> 
> Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
> ---
>  drivers/media/usb/au0828/au0828-video.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/drivers/media/usb/au0828/au0828-video.c b/drivers/media/usb/au0828/au0828-video.c
> index fd9fc43d47e0..2ec49ea479d5 100644
> --- a/drivers/media/usb/au0828/au0828-video.c
> +++ b/drivers/media/usb/au0828/au0828-video.c
> @@ -602,10 +602,7 @@ static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
>  		vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
>  		if (dev->vbi_read < vbi_field_size) {
>  			remain  = vbi_field_size - dev->vbi_read;
> -			if (len < remain)
> -				lencopy = len;
> -			else
> -				lencopy = remain;
> +			lencopy = umin(len, remain);
>  
>  			if (vbi_buf != NULL)
>  				au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
>