On Sunday 22 April 2007, Arnd Bergmann wrote:
> I would prefer to not have 'depends on !S390' but rather 'depends on MMIO',
> because that is what really drives stuff like IPMI: they expect the device
> to be reachable through the use of ioremap or inX/outX instructions, which
> don't exist on s390.
>
> While it's unlikely that another architecture has the same restriction,
> it expresses much clearer what you mean.
>
> In drivers/Kconfig, you can then simply add a
>
> config MMIO
> def_bool !S390
I just saw that we already have an option like that, with a slightly different
name.
arch/s390/Kconfig contains
config NO_IOMEM
def_bool y
and lib/Kconfig contains
config HAS_IOMEM
boolean
depends on !NO_IOMEM
default y
You should probably just use one of these two to disable any driver that
uses ioremap or similar.
Arnd <><
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