linux-kernel - Re: [PATCH 03/44] dmaengine: ioat: don't use DMA_ERROR

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Message-ID: <20170618070925.GA18526@infradead.org>
Date:   Sun, 18 Jun 2017 00:09:25 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Alexander Duyck <alexander.duyck@...il.com>
Cc:     Christoph Hellwig <hch@....de>,
        the arch/x86 maintainers <x86@...nel.org>,
        linux-arm-kernel@...ts.infradead.org,
        xen-devel@...ts.xenproject.org, linux-c6x-dev@...ux-c6x.org,
        linux-hexagon@...r.kernel.org, linux-ia64@...r.kernel.org,
        linux-mips@...ux-mips.org, openrisc@...ts.librecores.org,
        linuxppc-dev@...ts.ozlabs.org, linux-s390@...r.kernel.org,
        linux-sh@...r.kernel.org, sparclinux@...r.kernel.org,
        linux-xtensa@...ux-xtensa.org, dmaengine@...r.kernel.org,
        linux-tegra@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-samsung-soc@...r.kernel.org,
        "open list:INTEL IOMMU (VT-d)" <iommu@...ts.linux-foundation.org>,
        Netdev <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 03/44] dmaengine: ioat: don't use DMA_ERROR_CODE

On Fri, Jun 16, 2017 at 01:40:24PM -0700, Alexander Duyck wrote:
> dma_unmap_page on dest_dma if "op == IOAT_OP_XOR"? Odds are it is what
> the compiler is already generating and will save a few lines of code
> so what you end up with is something like:

Honestly wanted to touch the code as little as possible :)  If we want
to make it prettier and more readable it needs to be refactored.

If you're interested I can take a stab at that, but I'd like to keep
it out of this already giant series.