Re: [PATCH 0/5 v3] Fix NVMe driver support on Power with 32-bit DMA

[David Miller]

From: Nishanth Aravamudan <nacc@xxxxxxxxxxxxxxxxxx>
Date: Tue, 27 Oct 2015 15:20:10 -0700

> Well, looks like I should spin up a v4 anyways for the powerpc changes.
> So, to make sure I understand your point, should I make the generic
> dma_get_page_shift a compile-error kind of thing? It will only fail on
> architectures that actually build the NVME driver (as the only caller).
> But I'm not sure how exactly to achieve that, if you could give a bit
> more detail I'd appreciate it!

Yes, I am basically suggesting to simply not provide a default at all.
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