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    SubjectRe: [PATCH 3/3] IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
    The only downside I can think of for dropping pt_regs is that now it's harder
    to just find the IRQ handler in a driver ... it's previously been all but
    guaranteed that the _only_ use of that type is the IRQ logic. The upsides
    surely outweigh that.

    > > (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does
    > > something different depending on whether it's been supplied with a regs
    > > pointer or not.

    gaak! where did that come from? I'll be surprised if removing
    that causes any problem at all.

    - Dave

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