Thread (8 messages) 8 messages, 3 authors, 2008-02-01

Re: [PATCH] [POWERPC] Set dma_data correctly for direct_ops on pasemi

From: Olof Johansson <hidden>
Date: 2008-01-31 16:49:51

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:
quoted
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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