Re: CONFIG_VIRT_TO_BUS: what about bus_to_virt?

[Stephen Rothwell]

On Sat, 21 Jul 2007 11:52:18 +0200 Stefan Richter <stefanr@xxxxxxxxxxxxxxxxx> wrote:
>
> Is it sensible and safe to let a driver which uses bus_to_virt (but not
> virt_to_bus) depend on CONFIG_VIRT_TO_BUS?

If a driver depends on either bus_to_virt or virt_to_bus, then it
depend on CONFIG_VIRT_TO_BUS.  The intention is to exclude the driver from
being built on achitectures that don't implement those primitives (and
architectures always implement them both or neither).

-- 
Cheers,
Stephen Rothwell                    sfr@xxxxxxxxxxxxxxxx
http://www.canb.auug.org.au/~sfr/

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