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Date:   Sat, 29 Sep 2018 23:08:41 +0800
From:   Guo Ren <ren_guo@c-sky.com>
To:     Christoph Hellwig <hch@infradead.org>
Cc:     akpm@linux-foundation.org, arnd@arndb.de,
        daniel.lezcano@linaro.org, davem@davemloft.net,
        gregkh@linuxfoundation.org, jason@lakedaemon.net,
        marc.zyngier@arm.com, mark.rutland@arm.com,
        mchehab+samsung@kernel.org, peterz@infradead.org, robh@kernel.org,
        robh+dt@kernel.org, tglx@linutronix.de,
        linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
        devicetree@vger.kernel.org, green.hu@gmail.com
Subject: Re: [PATCH V6 20/33] csky/dma: fix up dma_mapping error
Message-ID: <20180929150840.GA9311@guoren-Inspiron-7460>
References: <cover.1538058840.git.ren_guo@c-sky.com>
 <378d4064bf29863785f4cc637999e07507e2e926.1538058840.git.ren_guo@c-sky.com>
 <20180928162116.GF19827@infradead.org>
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On Fri, Sep 28, 2018 at 09:21:16AM -0700, Christoph Hellwig wrote:
> On Fri, Sep 28, 2018 at 08:51:17AM +0800, Guo Ren wrote:
> > The arch_sync_dma_for_cpu()/arch_sync_dma_for_device() implementation is
> > broken for some combinations that end up in a BUG() instead of performing
> > the necessary flushes.
> 
> This should be folded into the original patch adding this code.
Ok, I'll rebase it.