Re: [PATCH] drivers: Let several drivers depends on HAS_IOMEM for 'devm_ioremap_resource'

From: Lars-Peter Clausen
Date: Sun Jul 13 2014 - 09:31:01 EST

On 07/13/2014 11:45 AM, Richard Weinberger wrote:
Am 13.07.2014 11:27, schrieb Lennox Wu:
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.

- Lars

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