Am 13.07.2014 15:56, schrieb Lars-Peter Clausen:

On 07/13/2014 03:40 PM, Richard Weinberger wrote:

quoted

Am 13.07.2014 15:26, schrieb Lars-Peter Clausen:

quoted

On 07/13/2014 11:45 AM, Richard Weinberger wrote:

quoted

Am 13.07.2014 11:27, schrieb Lennox Wu:

quoted

As I said before, some configurations don't make sense.

If such a configuration can be achieved using allmod/yesconfig it has to be fixed.
Chen's fixes seem reasonable as not all architectures support iomem.

Maybe we should stub out ioremap() and friends when COMPILE_TEST is enabled to avoid these linker errors. That's in my opinion better than turning most of the 'depends on
COMPILE_TEST' into 'depends on COMPILE_TEST && HAS_IOMEM'. The issue comes up quite a lot and it is often overlooked when adding a driver that can be build when COMPILE_TEST is
enabled.

And what should this stub do?
Except calling BUG()...

return NULL;

It's for compile testing, it's not meant to work at runtime.

Hm, I really don't like the idea of having a non-working kernel.
IMHO either it should build _and_ run and nothing else.
Greg, what do you think?

Thanks,
//richard