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    SubjectRe: DMA mapping (was Re: [PATCH] cciss 2.6; replaces DMA masks with kernel defines)
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    On Fri, 2005-06-10 at 22:30 +0100, Matthew Wilcox wrote:
    > On Fri, Jun 10, 2005 at 05:17:32PM -0400, Lee Revell wrote:
    > > OK, this covers the drivers I know. I didn't make any attempt to check
    > > them all.
    >
    > I know of two others ...
    >
    > sym2 has:
    > #define DMA_DAC_MASK 0x000000ffffffffffULL /* 40-bit */
    >
    > and aic7xxx has:
    > const uint64_t mask_39bit = 0x7FFFFFFFFFULL;
    >
    > Would you mind respinning your patch to include these?
    >

    I'm grepping the drivers, and what a mess. This will be a nice cleanup.

    Why would someone use 0xFFFFffff?

    Lee

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