netdev - Re: [PATCH 27/44] sparc: remove leon_dma

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Message-ID: <20170616084542.GD10582@lst.de>
Date:   Fri, 16 Jun 2017 10:45:42 +0200
From:   Christoph Hellwig <hch@....de>
To:     Andreas Larsson <andreas@...sler.com>
Cc:     Christoph Hellwig <hch@....de>, 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,
        iommu@...ts.linux-foundation.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 27/44] sparc: remove leon_dma_ops

On Mon, Jun 12, 2017 at 10:06:26AM +0200, Andreas Larsson wrote:
> Yes, it is needed. LEON systems are AMBA bus based. The common case here is 
> DMA over AMBA buses. Some LEON systems have PCI bridges, but in general 
> CONFIG_PCI is not a given.

Ok, and even for AMBA we use the pci ops, so I'll leave it in and drop
the comment from the commit.