Hi Nishanth, On Wed, Oct 28, 2015 at 9:20 AM, Nishanth Aravamudan <nacc@xxxxxxxxxxxxxxxxxx> wrote: > On 26.10.2015 [18:27:46 -0700], David Miller wrote: >> From: Nishanth Aravamudan <nacc@xxxxxxxxxxxxxxxxxx> >> Date: Fri, 23 Oct 2015 13:54:20 -0700 >> >> > 1) add a generic dma_get_page_shift implementation that just returns >> > PAGE_SHIFT >> >> I won't object to this patch series, but if I had implemented this I >> would have required the architectures to implement this explicitly, >> one-by-one. I think it is less error prone and more likely to end >> up with all the architectures setting this correctly. > > 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! He's suggesting that you _don't_ put a generic implementation in /include/linux/dma-mapping.h and instead add it to _every_ architecture. Thanks, -- Julian Calaby Email: julian.calaby@xxxxxxxxx Profile: http://www.google.com/profiles/julian.calaby/ -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
