Subject: Re: Correct use of bus_space functions
To: Martin J. Laubach <>
From: Jason R Thorpe <>
List: tech-kern
Date: 01/07/2003 17:19:57
On Tue, Jan 07, 2003 at 11:56:02PM +0000, Martin J. Laubach wrote:

 >   A part from that gcc-ismic thing of misusing a macro as a function, 
 > is the bus_space_barrier() correct or not?

Technically, the bus_space_barrier() is correct.  However, all of
our bus_space routines currently do an implicit barrier on systems
on which it matters, because the changes to drivers to use explicit
barriers are quite invasive.

        -- Jason R. Thorpe <>