[PATCH v2] powerpc/powernv/pci: use ifdef to avoid dead code

[Oliver O'Halloran]

On Mon, Jun 15, 2020 at 9:33 AM Greg Thelen <gthelen at google.com> wrote:
>
> Commit dc3d8f85bb57 ("powerpc/powernv/pci: Re-work bus PE
> configuration") removed a couple pnv_ioda_setup_bus_dma() calls.  The
> only remaining calls are behind CONFIG_IOMMU_API.  Thus builds without
> CONFIG_IOMMU_API see:
>   arch/powerpc/platforms/powernv/pci-ioda.c:1888:13: error: 'pnv_ioda_setup_bus_dma' defined but not used
>
> Move pnv_ioda_setup_bus_dma() under CONFIG_IOMMU_API to avoid dead code.

Doh! Thanks for the fix.

Reviewed-by: Oliver O'Halloran <oohall at gmail.com>