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    SubjectRE: [PATCH] arm: xen: mm: use __GPF_DMA32 for arm64
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    Hi Russell, Stefano

    > Subject: [PATCH] arm: xen: mm: use __GPF_DMA32 for arm64

    Any comments?

    >
    > arm64 shares some code under arch/arm/xen, including mm.c.
    > However ZONE_DMA is removed by commit
    > ad67f5a6545("arm64: replace ZONE_DMA with ZONE_DMA32").
    > So to ARM64, need use __GFP_DMA32.
    >
    > Signed-off-by: Peng Fan <peng.fan@nxp.com>
    > ---
    > arch/arm/xen/mm.c | 2 +-
    > 1 file changed, 1 insertion(+), 1 deletion(-)
    >
    > diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c index
    > e1d44b903dfc..a95e76d18bf9 100644
    > --- a/arch/arm/xen/mm.c
    > +++ b/arch/arm/xen/mm.c
    > @@ -27,7 +27,7 @@ unsigned long xen_get_swiotlb_free_pages(unsigned int
    > order)
    >
    > for_each_memblock(memory, reg) {
    > if (reg->base < (phys_addr_t)0xffffffff) {
    > - flags |= __GFP_DMA;
    > + flags |= __GFP_DMA | __GFP_DMA32;
    > break;
    > }
    > }

    Thanks,
    Peng.

    > --
    > 2.16.4

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