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

From: Joe Perches

Sent: 06 October 2016 12:39
On Thu, 2016-10-06 at 09:41 +0000, David Laight wrote:

quoted

From: Joe Perches

quoted

No worries, and bool is the same ,size as u8.

That is not guaranteed at all.
One of the ARM ABI defined bool to be the size of int.

=20
Really?  What kernel has sizeof(_Bool) !=3D 1 ?

Probably none, but I know systems have used larger bool.
I found this:

with egcs-2.90.29 980515 (egcs-1.0.3 release) on alphaev56-dec-osf4.0d

 bool  =3D 8
 short =3D 2
 int   =3D 4=20
 long  =3D 8

I'm pretty sure something newer than an old alpha ABI used 4 byte bool.

	David