Re: [PATCH 28/44] sparc: remove arch specific dma_supported implementations

From	Christoph Hellwig <hch@lst.de>
Newsgroups	linux.kernel
Subject	Re: [PATCH 28/44] sparc: remove arch specific dma_supported implementations
Date	2017-06-16 10:50 +0200
Message-ID	<tSV73-67Z-3@gated-at.bofh.it> (permalink)
References	<tQ5FE-4OD-5@gated-at.bofh.it> <tQ5Pk-4SX-27@gated-at.bofh.it> <tQ6BJ-5pp-33@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Fri, Jun 09, 2017 at 12:22:48AM +1000, Julian Calaby wrote:
> I'm guessing there's a few places that have DMA ops but DMA isn't
> actually supported. Why not have a common method for this, maybe
> "dma_not_supported"?

It's not common at all.  Except for sbus all dma API user first
call set_dma_mask which ends up in the dma_supported call.  sbus
is the weird outlier here.

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[PATCH 28/44] sparc: remove arch specific dma_supported implementations Christoph Hellwig <hch@lst.de> - 2017-06-08 15:40 +0200
  Re: [PATCH 28/44] sparc: remove arch specific dma_supported  implementations David Miller <davem@davemloft.net> - 2017-06-08 16:30 +0200
  Re: [PATCH 28/44] sparc: remove arch specific dma_supported implementations Julian Calaby <julian.calaby@gmail.com> - 2017-06-08 16:30 +0200
    Re: [PATCH 28/44] sparc: remove arch specific dma_supported         implementations Christoph Hellwig <hch@lst.de> - 2017-06-16 10:50 +0200

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