On Wed, Aug 15, 2007 at 12:37:49PM +0100, Ralf Baechle wrote: > On Tue, Aug 14, 2007 at 02:14:41AM +0200, Andi Kleen wrote: > > > meth is only used on SGI O2s which are not that slow and unlikely > > to work in tree anyways. > > O2 doesn't enable CONFIG_ZONE_DMA so there is no point in using GFP_DMA in > an O2-specific device driver. Will send out patch in separate mail. Great. BTW I suspect this is true for some other GFP_DMA usages too. Some driver writers seem to confuse it with the PCI DMA APIs or believe it is always needed for them. -Andi