On Tuesday 12 February 2013, Thomas Petazzoni wrote:
> The pcim_*() functions are used by the libata-sff subsystem, and this
> subsystem is used for many SATA drivers on ARM platforms that do not
> necessarily have I/O ports.
>
> Signed-off-by: Thomas Petazzoni <[email protected]>
> Cc: Paul Gortmaker <[email protected]>
> Cc: Jesse Barnes <[email protected]>
> Cc: Yinghai Lu <[email protected]>
> Cc: [email protected]
Sorry, but this patch is still incorrect. Any driver that requires a linear
mapping of I/O ports to __iomem pointers must depend CONFIG_HAS_IOPORT
with the current definition of that symbol (as mentioned before, we
should really rename that to CONFIG_HAS_IOPORT_MAP). Having these
functions not defined is a compile time check that is necessary to
ensure that all drivers have the correct annotation.
If a platform has no support for I/O ports at all, it should
probably not set CONFIG_NO_IOPORT at this point.
Arnd
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