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

[Lars-Peter Clausen]

On 07/14/2014 10:31 AM, Richard Weinberger wrote:
> Am 13.07.2014 22:17, schrieb Greg Kroah-Hartman:
> > On Sun, Jul 13, 2014 at 09:33:38PM +0200, Richard Weinberger wrote:
> > > Maybe we could add COMPILE_TEST to the version string too?
> > > Just to detect such kernels fast in user bug reports...
> >
> > What kind of bug report are you going to get?
>
> User manages to enable CONFIG_FOO by selecting COMPILE_TEST and
> complains that it does not work. :)

These drivers are typically drivers for some SoC peripheral and the device 
will simply physically not exist on a platform that does not provide 
HAS_IOMEM. This is not really any different from making the driver 
selectable via COMPILE_TEST for any other platform. To hit the issue you'd 
have to instantiate a device driver instance for a device that physically 
does not exist. This will always result in a failure.

- Lars

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