From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
To: Florian Fainelli <f.fainelli-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: "linux-mips-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org"
<linux-mips-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>,
Kevin Cernekee <cernekee-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
"iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org"
<iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>,
Paul Burton <paul.burton-8NJIiSa5LzA@public.gmane.org>,
"robin.murphy-5wv7dgnIgG8@public.gmane.org"
<robin.murphy-5wv7dgnIgG8@public.gmane.org>,
Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Subject: Re: [PATCH, for-4.19] dma-mapping: add the missing ARCH_HAS_SYNC_DMA_FOR_CPU_ALL declaration
Date: Tue, 25 Sep 2018 22:05:43 +0200 [thread overview]
Message-ID: <20180925200542.GA8200@lst.de> (raw)
In-Reply-To: <62B54A6B-6E10-4A40-8E61-C1D23A853816-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
On Sat, Sep 22, 2018 at 12:24:33PM -0700, Florian Fainelli wrote:
> >My thought would be that it would be ideal to fix in 4.19 since that's
> >where the breakage is, but having said that I don't have much insight
> >into how bad the breakage is for the affected systems.
>
>
> AFAIR, DMA corruption is typically what you would observe, which could prove difficult if you are not exactly looking for it. In any case, I don't have a BMIPS system running 4.19 right now to exercise this on, but this looks correct:
Well, I originally intended it for 4.19, but without reviews from
the affected maintainers I'd fell bad about it. Now that we've got
agreement I'll queue it for 4.19.
prev parent reply other threads:[~2018-09-25 20:05 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-11 9:00 [PATCH, for-4.19] dma-mapping: add the missing ARCH_HAS_SYNC_DMA_FOR_CPU_ALL declaration Christoph Hellwig
[not found] ` <20180911090049.10747-1-hch-jcswGhMUV9g@public.gmane.org>
2018-09-14 10:08 ` Christoph Hellwig
[not found] ` <20180914100842.GA23696-jcswGhMUV9g@public.gmane.org>
2018-09-14 15:44 ` Robin Murphy
[not found] ` <00257a79-72cf-15aa-fed9-d75923eed51e-5wv7dgnIgG8@public.gmane.org>
2018-09-14 15:51 ` Christoph Hellwig
[not found] ` <20180921061052.GA13705@lst.de>
[not found] ` <20180921061052.GA13705-jcswGhMUV9g@public.gmane.org>
2018-09-21 19:42 ` Paul Burton
2018-09-22 19:24 ` Florian Fainelli
[not found] ` <62B54A6B-6E10-4A40-8E61-C1D23A853816-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2018-09-25 20:05 ` Christoph Hellwig [this message]
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