linux-kernel - RE: [PATCH v10 1/3] lib: Add strongly typed 64bit int

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Date:   Thu, 21 Dec 2017 13:56:55 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     'Crt Mori' <cmo@...exis.com>
CC:     Peter Zijlstra <peterz@...radead.org>,
        Jonathan Cameron <jic23@...nel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Kees Cook <keescook@...omium.org>,
        Rusty Russell <rusty@...tcorp.com.au>,
        Ian Abbott <abbotti@....co.uk>,
        Larry Finger <Larry.Finger@...inger.net>,
        Niklas Soderlund <niklas.soderlund+renesas@...natech.se>,
        Thomas Gleixner <tglx@...utronix.de>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>,
        Joe Perches <joe@...ches.com>
Subject: RE: [PATCH v10 1/3] lib: Add strongly typed 64bit int_sqrt

From: Crt Mori
> Sent: 21 December 2017 13:18
...
> >         unsigned int i;
> 
> i can be u8. And I will still use explicit typing.

u8 will add extra code, unsigned int is good.
'x' needs to be u32, 'y' and 'b' could be larger.

I was testing in userspace.

...
> This part above looks like FLS
It also does the rest of the required shifts.

...
> This one indeed works. I did some more testing this morning and I am
> fine with either.
> 
> So question is: Do I make change as per David's suggestion with his
> sign-off, or leave the version it was before the change?

If you generate the actual patch I can add an appropriate sign-off
(or whatever is needed).

	David