linux-kernel - Re: [PATCH] bluetooth.h: __ variants of u8 and friends are not neccessary inside kernel

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Message-ID: <1475737676.3224.1.camel@perches.com>
Date:   Thu, 06 Oct 2016 00:07:56 -0700
From:   Joe Perches <joe@...ches.com>
To:     Pavel Machek <pavel@....cz>
Cc:     Marcel Holtmann <marcel@...tmann.org>,
        "Gustavo F. Padovan" <gustavo@...ovan.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        linux-bluetooth@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] bluetooth.h: __ variants of u8 and friends are not
 neccessary inside kernel

On Thu, 2016-10-06 at 09:02 +0200, Pavel Machek wrote:
> I believe you are wrong. bit addressability does not matter, cpu can
> definitely get the bit values.
> 
> u8 foo:1;
> u8 bar:1;
> u8 baz:1;
> 
> should take 1 byte, where
> 
> bool foo, bar, baz;
> 
> will take more like 3.

Definitely true.

There is only one single bitfield foo here though
so what you wrote doesn't apply.