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    SubjectRe: [PATCH] powerpc: enable a 30-bit ZONE_DMA for 32-bit pmac
    Date
    On Thu, 2019-06-13 at 08:24:46 UTC, Christoph Hellwig wrote:
    > With the strict dma mask checking introduced with the switch to
    > the generic DMA direct code common wifi chips on 32-bit powerbooks
    > stopped working. Add a 30-bit ZONE_DMA to the 32-bit pmac builds
    > to allow them to reliably allocate dma coherent memory.
    >
    > Fixes: 65a21b71f948 ("powerpc/dma: remove dma_nommu_dma_supported")
    > Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
    > Signed-off-by: Christoph Hellwig <hch@lst.de>
    > Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
    > Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
    > Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>

    Applied to powerpc fixes, thanks.

    https://git.kernel.org/powerpc/c/9739ab7eda459f0669ec9807e0d9be5020bab88c

    cheers

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