On Mon, Apr 16, 2018 at 09:58:33AM -0400, David Miller wrote: > From: Anshuman Khandual <khandual@xxxxxxxxxxxxxxxxxx> > Date: Mon, 16 Apr 2018 14:26:07 +0530 > > > On 04/15/2018 08:29 PM, Christoph Hellwig wrote: > >> This code is only used by sparc, and all new iommu drivers should use the > >> drivers/iommu/ framework. Also remove the unused exports. > >> > >> Signed-off-by: Christoph Hellwig <hch@xxxxxx> > > > > Right, these functions are used only from SPARC architecture. Simple > > git grep confirms it as well. Hence it makes sense to move them into > > arch code instead. > > Well, we put these into a common location and used type friendly for > powerpc because we hoped powerpc would convert over to using this > common piece of code as well. > > But nobody did the powerpc work. > > If you look at the powerpc iommu support, it's the same code basically > for entry allocation. I could also introduce a new config symbol and keep it in common code, but it has been there for a while without any new user. Right now it just means we built the code for everyone who selects CONFIG_IOMMU_HELPER, which is just about anyone these days.
