linux-kernel - Re: [PATCH 8/8] lib: add fast path for find_first_*_bit() and find_last

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Message-ID: <YBgHFhfIsu60iJc2@smile.fi.intel.com>
Date:   Mon, 1 Feb 2021 15:50:14 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Yury Norov <yury.norov@...il.com>
Cc:     linux-m68k@...ts.linux-m68k.org, linux-kernel@...r.kernel.org,
        linux-sh@...r.kernel.org, linux-arch@...r.kernel.org,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>, Arnd Bergmann <arnd@...db.de>,
        Dennis Zhou <dennis@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        David Sterba <dsterba@...e.com>,
        Stefano Brivio <sbrivio@...hat.com>,
        "Ma, Jianpeng" <jianpeng.ma@...el.com>,
        Wei Yang <richard.weiyang@...ux.alibaba.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>,
        Joe Perches <joe@...ches.com>
Subject: Re: [PATCH 8/8] lib: add fast path for find_first_*_bit() and
 find_last_bit()

On Sat, Jan 30, 2021 at 11:17:19AM -0800, Yury Norov wrote:
> Similarly to bitmap functions, users will benefit if we'll handle
> a case of small-size bitmaps that fit into a single word.
> 
> While here, move the find_last_bit() declaration to bitops/find.h
> where other find_*_bit() functions sit.

As per previous patches:
 - decouple from tools
 - show examples of the code generation difference

-- 
With Best Regards,
Andy Shevchenko