[PATCH 1/2] drm/ttm: add a way to bo_wait for either the last read or last write

[Ville Syrjälä]

On Fri, Oct 07, 2011 at 10:58:13AM +0200, Thomas Hellstrom wrote:
> Oh, and one more style comment below:
> 
> On 08/07/2011 10:39 PM, Marek Ol??k wrote:
> >
> > +enum ttm_buffer_usage {
> > +    TTM_USAGE_READ = 1,
> > +    TTM_USAGE_WRITE = 2,
> > +    TTM_USAGE_READWRITE = TTM_USAGE_READ | TTM_USAGE_WRITE
> > +};
> >
> >    
> 
> Please don't use enums for bit operations.

Now I'm curious. Why not?

-- 
Ville Syrj?l?
syrjala at sci.fi
http://www.sci.fi/~syrjala/