linux-kernel - Re: [PATCH v1 1/2] cma: factor out minimum alignment requirement

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Message-ID: <CAL_JsqKzL6xBXfuTv423EoWw=fYPnK_q5paqUSDWyyoNx1thRA@mail.gmail.com>
Date:   Tue, 15 Feb 2022 13:53:44 -0600
From:   Rob Herring <robh+dt@...nel.org>
To:     David Hildenbrand <david@...hat.com>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Aneesh Kumar K V <aneesh.kumar@...ux.ibm.com>,
        Zi Yan <ziy@...dia.com>, Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Frank Rowand <frowand.list@...il.com>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Christoph Hellwig <hch@....de>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Robin Murphy <robin.murphy@....com>,
        Minchan Kim <minchan@...nel.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        devicetree@...r.kernel.org,
        "open list:DRM DRIVER FOR QEMU'S CIRRUS DEVICE" 
        <virtualization@...ts.linux-foundation.org>,
        Linux IOMMU <iommu@...ts.linux-foundation.org>,
        linux-mm <linux-mm@...ck.org>
Subject: Re: [PATCH v1 1/2] cma: factor out minimum alignment requirement

On Mon, Feb 14, 2022 at 11:42 AM David Hildenbrand <david@...hat.com> wrote:
>
> Let's factor out determining the minimum alignment requirement for CMA
> and add a helpful comment.
>
> No functional change intended.
>
> Signed-off-by: David Hildenbrand <david@...hat.com>
> ---
>  arch/powerpc/include/asm/fadump-internal.h |  5 -----
>  arch/powerpc/kernel/fadump.c               |  2 +-
>  drivers/of/of_reserved_mem.c               |  9 +++------

Acked-by: Rob Herring <robh@...nel.org>

>  include/linux/cma.h                        |  9 +++++++++
>  kernel/dma/contiguous.c                    |  4 +---
>  mm/cma.c                                   | 20 +++++---------------
>  6 files changed, 19 insertions(+), 30 deletions(-)