linux-kernel - Re: [PATCH v10 00/10] Introduce the for_each_set

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Date:   Sun, 24 Mar 2019 13:08:09 +0900
From:   William Breathitt Gray <vilhelm.gray@...il.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Phil Reid <preid@...ctromag.com.au>
Cc:     linus.walleij@...aro.org, akpm@...ux-foundation.org,
        linux-gpio@...r.kernel.org, linux-arch@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux@...musvillemoes.dk,
        yamada.masahiro@...ionext.com, bgolaszewski@...libre.com,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v10 00/10] Introduce the for_each_set_clump8 macro

On Fri, Mar 22, 2019 at 09:12:02PM +0200, Andy Shevchenko wrote:
> On Thu, Mar 14, 2019 at 09:29:32PM +0900, William Breathitt Gray wrote:
> > Changes in v10:
> >   - Fix off-by-one error in bitmap initialization in the
> >     test_for_each_set_clump8 function
> >   - Fix typos in clump_exp array definition in test_bitmap.c ("0x28"
> >     should have been "0x38")
> >   - Utilize for_each_set_clump8 macro in intel_soc_dts_iosf.c
> 
> One more, can you look at gen_74x164_set_multiple() ? It seems a candidate as
> well, if I'm not mistaken.

We can utilize the for_each_set_clump8 macro in the
gen_74x164_set_multiple function, but I skipped over it earlier since I
noticed it used the BITS_PER_BYTE define rather than a hardcoded 8. If
it always loops 8 bits at a time, then we can use the
for_each_set_clump8 macro; otherwise we would need the more generic
for_each_set_clump macro to handle the non-8-bit looping cases.

Will BITS_PER_BYTE always be defined as 8 bits?

William Breathitt Gray

> 
> 
> -- 
> With Best Regards,
> Andy Shevchenko
> 
>