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From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Christoph Hellwig <hch@lst.de>
Cc: Linux IOMMU <iommu@lists.linux-foundation.org>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	Vladimir Murzin <vladimir.murzin@arm.com>,
	Takashi Iwai <tiwai@suse.de>, Helge Deller <deller@gmx.de>,
	Robin Murphy <robin.murphy@arm.com>,
	Michal Simek <monstr@monstr.eu>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	linux-m68k <linux-m68k@lists.linux-m68k.org>,
	Parisc List <linux-parisc@vger.kernel.org>,
	Linux-sh list <linux-sh@vger.kernel.org>,
	linux-xtensa@linux-xtensa.org,
	linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
	"the arch/x86 maintainers" <x86@kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 8/8] dma-mapping: remove CONFIG_ARCH_NO_COHERENT_DMA_MMAP
Date: Fri, 9 Aug 2019 09:21:28 +0200
Message-ID: <CAMuHMdV0JfZ_K2V7W0FQkobE_zLwe4Uez-EWzMMdTfVffpAWtA@mail.gmail.com> (raw)
In-Reply-To: <20190808160005.10325-9-hch@lst.de>

Hi Christoph,

On Thu, Aug 8, 2019 at 6:01 PM Christoph Hellwig <hch@lst.de> wrote:
> CONFIG_ARCH_NO_COHERENT_DMA_MMAP is now functionally identical to
> !CONFIG_MMU, so remove the separate symbol.  The only difference is that
> arm did not set it for !CONFIG_MMU, but arm uses a separate dma mapping
> implementation including its own mmap method, which is handled by moving
> the CONFIG_MMU check in dma_can_mmap so that is only applies to the
> dma-direct case, just as the other ifdefs for it.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>

>  arch/m68k/Kconfig       |  1 -

For m68k:
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

      reply index

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-08 15:59 remove default fallbacks in dma_map_ops v3 Christoph Hellwig
2019-08-08 15:59 ` [PATCH 1/8] dma-mapping: provide a better default ->get_required_mask Christoph Hellwig
2019-08-08 15:59 ` [PATCH 2/8] dma-mapping: move the dma_get_sgtable API comments from arm to common code Christoph Hellwig
2019-08-08 16:00 ` [PATCH 3/8] dma-mapping: explicitly wire up ->mmap and ->get_sgtable Christoph Hellwig
2019-08-08 16:00 ` [PATCH 4/8] dma-mapping: add a dma_can_mmap helper Christoph Hellwig
2019-08-08 16:00 ` [PATCH 5/8] ALSA: pcm: use dma_can_mmap() to check if a device supports dma_mmap_* Christoph Hellwig
2019-08-08 16:00 ` [PATCH 6/8] arm-nommu: call dma_mmap_from_dev_coherent directly Christoph Hellwig
2019-08-09  9:35   ` Sergei Shtylyov
2019-08-08 16:00 ` [PATCH 7/8] parisc: don't set ARCH_NO_COHERENT_DMA_MMAP Christoph Hellwig
2019-08-15  7:36   ` Christoph Hellwig
2019-08-15  9:25   ` James Bottomley
2019-08-15 10:50     ` Christoph Hellwig
2019-08-19 14:25       ` Christoph Hellwig
2019-08-08 16:00 ` [PATCH 8/8] dma-mapping: remove CONFIG_ARCH_NO_COHERENT_DMA_MMAP Christoph Hellwig
2019-08-09  7:21   ` Geert Uytterhoeven [this message]

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