linux-kernel - Re: use generic DMA mapping code in powerpc V4

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Date:   Fri, 18 Jan 2019 13:55:00 +0100
From:   Christoph Hellwig <hch@....de>
To:     Christian Zigotzky <chzigotzky@...osoft.de>
Cc:     Christoph Hellwig <hch@....de>, linux-arch@...r.kernel.org,
        Darren Stevens <darren@...vens-zone.net>,
        linux-kernel@...r.kernel.org, Julian Margetson <runaway@...dw.ms>,
        linux-mm@...ck.org, iommu@...ts.linux-foundation.org,
        Paul Mackerras <paulus@...ba.org>,
        Olof Johansson <olof@...om.net>, linuxppc-dev@...ts.ozlabs.org
Subject: Re: use generic DMA mapping code in powerpc V4

On Fri, Jan 18, 2019 at 01:46:46PM +0100, Christian Zigotzky wrote:
> Sorry, it's not possible to patch 
> '257002094bc5935dd63207a380d9698ab81f0775' with your patch. I also tried it 
> manually but without any success.

Weird:

hch@...bon:~/work/linux$ git checkout 257002094bc5935dd63207a380d9698ab81f0775
HEAD is now at 257002094bc5 powerpc/dma: use the dma-direct allocator for coherent platforms
hch@...bon:~/work/linux$ patch -p1 < dbg.diff 
patching file kernel/dma/direct.c

I've pushed the result to

git://git.infradead.org/users/hch/misc.git

as a new powerpc-dma.6-debug branch

View attachment "dbg.diff" of type "text/x-patch" (747 bytes)