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

From: Johan Hedberg <[email-masked]>
Date: Thu, 6 Oct 2016 11:38:04 +0300

Hi,

On Thu, Oct 06, 2016, Joe Perches wrote:
> 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.

What's in the tree is a left-over from times when there were multiple
bit fields in this struct. By the time others were removed and there was
only one left no-one has apparently bothered to update it to a bool or
single u8.

Johan