[PATCH] [POWERPC] Set dma_data correctly for direct_ops on pasemi
Olof Johansson
olof at lixom.net
Fri Feb 1 03:18:05 EST 2008
On Thu, Jan 31, 2008 at 11:38:16PM +1100, Michael Ellerman wrote:
> On Thu, 2008-01-31 at 00:41 -0600, Olof Johansson wrote:
> > More late-caught fallout from the mainline merge. The patch:
> >
> > [POWERPC] Use archdata.dma_data in dma_direct_ops and add the offset
> >
> > "Now that all platforms using dma_direct_offset setup the
> > archdata.dma_data correctly, ..."
> >
> > Nope -- the pasemi iommu setup code that disables translation on the
> > DMA pci device didn't set dma_data correctly.
> >
> > The below patch is needed, please merge as soon as practical. Thanks!
>
> Sorry about that.
>
> I'm confused though, didn't your device come from alloc_pci_dev() which
> kzalloc()s the pci_dev which contains the archdata which contains the
> dma_data, ie. dma_data will already be 0?
Yeah, I don't see how my patch could work (but it did), since the code
falls through and overwrites dma_data with the pointer to the table,
just as before. Weird, I did test it last night. See new patch.
-Olof
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