Matthew Wilcox wrote:
On Wed, Feb 18, 2009 at 10:11:06AM -0800, Jesse Barnes wrote:
I wonder if it's worth adding better checks for bus vs CPU space mixups, maybe
with a sparse annotation or a new typedef...
Part of the problem is that our PCI layer kludges all this around.
First we read bus addresses into a struct resource, then we hand it
off to arch code that frobs the struct resource. We also have struct
pci_bus_region which is supposed to represent bus addresses, but we
don't use it consistently.
I've wanted to fix this for a while, but there always seems to
be something more urgent to do. Plus it means fixing up a lot of
architectures.
Do you mean pcibios_bus_to_resource() doesn't work well, or something
else? Can you please advise what we should do now?
Thanks,
Yu
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