linux-kernel - Re: [PATCH v10-mte 1/7] lib/bitmap: add bitmap

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Date: Thu, 14 Dec 2023 11:48:50 -0800
From: Yury Norov <yury.norov@...il.com>
To: Alexander Potapenko <glider@...gle.com>
Cc: catalin.marinas@....com, will@...nel.org, pcc@...gle.com,
	andreyknvl@...il.com, andriy.shevchenko@...ux.intel.com,
	aleksander.lobakin@...el.com, linux@...musvillemoes.dk,
	alexandru.elisei@....com, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, eugenis@...gle.com,
	syednwaris@...il.com, william.gray@...aro.org,
	Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH v10-mte 1/7] lib/bitmap: add bitmap_{read,write}()

On Thu, Dec 14, 2023 at 12:06:33PM +0100, Alexander Potapenko wrote:
> From: Syed Nayyar Waris <syednwaris@...il.com>
> 
> The two new functions allow reading/writing values of length up to
> BITS_PER_LONG bits at arbitrary position in the bitmap.
> 
> The code was taken from "bitops: Introduce the for_each_set_clump macro"
> by Syed Nayyar Waris with a number of changes and simplifications:
>  - instead of using roundup(), which adds an unnecessary dependency
>    on <linux/math.h>, we calculate space as BITS_PER_LONG-offset;
>  - indentation is reduced by not using else-clauses (suggested by
>    checkpatch for bitmap_get_value());
>  - bitmap_get_value()/bitmap_set_value() are renamed to bitmap_read()
>    and bitmap_write();
>  - some redundant computations are omitted.
> 
> Cc: Arnd Bergmann <arnd@...db.de>
> Signed-off-by: Syed Nayyar Waris <syednwaris@...il.com>
> Signed-off-by: William Breathitt Gray <william.gray@...aro.org>
> Link: https://lore.kernel.org/lkml/fe12eedf3666f4af5138de0e70b67a07c7f40338.1592224129.git.syednwaris@gmail.com/
> Suggested-by: Yury Norov <yury.norov@...il.com>
> Co-developed-by: Alexander Potapenko <glider@...gle.com>
> Signed-off-by: Alexander Potapenko <glider@...gle.com>
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

Acked-by: Yury Norov <yury.norov@...il.com>