linux-kernel - Re: [PATCH v7 8/8] gpu: ipu-v3: Use generic macro for rounding to nearest multiple

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Date: Fri, 10 May 2024 18:03:52 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Devarsh Thakkar <devarsht@...com>
Cc: mchehab@...nel.org, hverkuil-cisco@...all.nl,
	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
	benjamin.gaignard@...labora.com, sebastian.fricke@...labora.com,
	p.zabel@...gutronix.de, airlied@...il.com, daniel@...ll.ch,
	dri-devel@...ts.freedesktop.org, laurent.pinchart@...asonboard.com,
	praneeth@...com, nm@...com, vigneshr@...com, a-bhatia1@...com,
	j-luthra@...com, b-brnich@...com, detheridge@...com,
	p-mantena@...com, vijayp@...com, andrzej.p@...labora.com,
	nicolas@...fresne.ca, akpm@...ux-foundation.org,
	gregkh@...uxfoundation.org, adobriyan@...il.com,
	jani.nikula@...el.com
Subject: Re: [PATCH v7 8/8] gpu: ipu-v3: Use generic macro for rounding to
 nearest multiple

On Fri, May 10, 2024 at 12:10:10AM +0530, Devarsh Thakkar wrote:
> Use generic macro round_closest_up for rounding to nearest multiple instead

round_closest_up()

We refer to the functions as func().

> of using local function.

..

> @@ -565,7 +563,7 @@ static void find_best_seam(struct ipu_image_convert_ctx *ctx,
>  		 * The closest input sample position that we could actually
>  		 * start the input tile at, 19.13 fixed point.
>  		 */
> -		in_pos_aligned = round_closest(in_pos, 8192U * in_align);
> +		in_pos_aligned = round_closest_up(in_pos, 8192U * in_align);
>  		/* Convert 19.13 fixed point to integer */
>  		in_pos_rounded = in_pos_aligned / 8192U;

Oh, these seems to be better to use either ALIGN*(), or PFN_*() / PAGE_*()
families of macros. What the semantic of 8192 is?

-- 
With Best Regards,
Andy Shevchenko