Re: DMA mapping (was Re: [PATCH] cciss 2.6; replaces DMA masks with kernel defines)

Pavel Machek
2005-06-11T15:40:09Z

Hi!

> > 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?

To make it easier to count Fs?
Pavel