Messages in this thread | | | Date | Mon, 30 Jan 2006 12:01:33 +0200 | From | Muli Ben-Yehuda <> | Subject | Re: [PATCH RESEND] move swiotlb.h header file to asm-generic |
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On Mon, Jan 30, 2006 at 10:49:41AM +0100, Andi Kleen wrote: > On Monday 30 January 2006 10:44, Muli Ben-Yehuda wrote: > > This patch: > > > > - creates asm-generic/swiotlb.h > > - makes it use 'enum dma_data_direction dir' rather than 'int dir' > > - updates x86-64 and IA64 to use the common swiotlb.h > > - fixes the resulting fall out (s/int dir/enum dma_data_direction dir/ > > all over the place). > > Al Viro will likely flame you badly for that enum change. Apparently it > causes some trouble in sparse. Frankly i don't see the point neither. > It just makes the code harder to read and creates a monstrosity of a patch > and doesn't give you anything.
DMA-API.txt uses the enum form; so do arm, frv, mips, parisc and powerpc. x86-64, IA64, alpha, sparc, sparc64 and v850 use the int form. I really couldn't care less whether we use an enum or an int for the DMA data direction in the DMA API, as long as all archs used the same thing. I don't feel comfortable putting swiotlb.h in generic code unless it really is generic. So... which should it be?
Cheers, Muli -- Muli Ben-Yehuda http://www.mulix.org | http://mulix.livejournal.com/
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