linux-kernel - Re: [PATCH 07/44] xen-swiotlb: consolidate xen_swiotlb_dma

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Date:   Sat, 10 Jun 2017 22:36:44 -0400
From:   Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:     Christoph Hellwig <hch@....de>
Cc:     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 07/44] xen-swiotlb: consolidate xen_swiotlb_dma_ops

On Thu, Jun 08, 2017 at 03:25:32PM +0200, Christoph Hellwig wrote:
> ARM and x86 had duplicated versions of the dma_ops structure, the
> only difference is that x86 hasn't wired up the set_dma_mask,
> mmap, and get_sgtable ops yet.  On x86 all of them are identical
> to the generic version, so they aren't needed but harmless.
> 
> All the symbols used only for xen_swiotlb_dma_ops can now be marked
> static as well.
> 
> Signed-off-by: Christoph Hellwig <hch@....de>
> ---
>  arch/arm/xen/mm.c              | 17 --------
>  arch/x86/xen/pci-swiotlb-xen.c | 14 -------
>  drivers/xen/swiotlb-xen.c      | 93 ++++++++++++++++++++++--------------------
>  include/xen/swiotlb-xen.h      | 62 +---------------------------
>  4 files changed, 49 insertions(+), 137 deletions(-)

Yeeey!

Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>