linux-kernel - Re: [PATCH v4 0/3] dma-mapping, powerpc, nvme: introduce the DMA_ATTR_NO

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Message-Id: <57A487CC.3040205@linux.vnet.ibm.com>
Date:	Fri, 5 Aug 2016 09:34:20 -0300
From:	Mauricio Faria de Oliveira <mauricfo@...ux.vnet.ibm.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-nvme@...ts.infradead.org, corbet@....net,
	rmk+kernel@....linux.org.uk, keith.busch@...el.com, axboe@...com,
	benh@...nel.crashing.org, mpe@...erman.id.au,
	k.kozlowski@...sung.com
Subject: Re: [PATCH v4 0/3] dma-mapping, powerpc, nvme: introduce the
 DMA_ATTR_NO_WARN attribute

On 08/04/2016 10:05 PM, Andrew Morton wrote:
> Of course, the alternative is to just delete the damn warnings from
> ppc_iommu_map_sg().  Imagine that!  Have they ever been of any use to
> anyone?

Sure. I submitted a patch to convert it to dynamic debug (so it would
still be available if one wanted to), but it wasn't accepted [1]; so
I guess it apparently is, in some cases.

[1] https://lists.ozlabs.org/pipermail/linuxppc-dev/2016-June/144196.html

thanks

-- 
Mauricio Faria de Oliveira
IBM Linux Technology Center