Question2: Determine subarch type

[Russell King - ARM Linux]

On Sun, Dec 09, 2012 at 01:55:51PM +0400, Alexander Shiyan wrote:
> On Sun, 9 Dec 2012 09:51:38 +0000
> Russell King - ARM Linux <linux at arm.linux.org.uk> wrote:
> 
> > On Sun, Dec 09, 2012 at 10:51:17AM +0400, Alexander Shiyan wrote:
> > > How can we determine the sub-architecture type from the driver code?
> > > For example, we are building a multi-platform kernel for subarch A and B.
> > > One of the drivers should be used for subarch A only, and can not be used for
> > > subarch B. So, we need to avoid load this driver for other sub-architectures.
> > > Of course, we can check all machines in the subarch with machine_is_xx() macro,
> > > but I think that this is not the best way to do it.
> > > Do we have another way to do this?
> > 
> > You control this by only registering the appropriate struct devices rather
> > than controlling this in the driver.
> 
> Yes, but if driver is compiled as module?

Makes no difference.