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    Subjectis_device_dma_capable
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    Hello,

    I'm using the parport_pc driver with a dma buffer, which is provided
    by calling dma_alloc_coherent in arch/x86/include/asm/dma-mapping.h.

    This is no longer working for me in 2.6.29.2, the previous version I
    was using is 2.6.25.10, which was fine with the same hardware.

    The problem is that the call to is_device_dma_capable returns false,
    so dma_alloc_coherent returns NULL. Do I need to set the dma_mask in
    the driver for this to work correctly?

    thanks,
    Malcolm.


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