linux-kernel - Re: [PATCH 4/7] dma-mapping: Always provide dma_default

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Message-Id: <11934581-71FC-4D5F-B293-1E7213CD284B@flygoat.com>
Date:   Tue, 21 Feb 2023 19:56:35 +0000
From:   Jiaxun Yang <jiaxun.yang@...goat.com>
To:     Christoph Hellwig <hch@....de>
Cc:     "linux-mips@...r.kernel.org" <linux-mips@...r.kernel.org>,
        linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        mpe@...erman.id.au, paul.walmsley@...ive.com, palmer@...belt.com,
        Rob Herring <robh+dt@...nel.org>, m.szyprowski@...sung.com,
        robin.murphy@....com
Subject: Re: [PATCH 4/7] dma-mapping: Always provide dma_default_coherent



> 2023年2月21日 17:58，Christoph Hellwig <hch@....de> 写道：
> 
> On Tue, Feb 21, 2023 at 12:46:10PM +0000, Jiaxun Yang wrote:
>> dma_default_coherent can be useful for determine default coherency
>> even on arches without noncoherent support.
> 
> How?

I just want to make this symbol always available so OF code can reference it on all arches.