Re: [PATCH 5/7] pci: Export the pci_restore_msi_state() function

On Fri, 2007-10-19 at 19:04 -0500, linas@austin.ibm.com wrote:

I'm working in linux-2.6.23-rc8-mm1 at the moment, and I don't see
that happening. viz. read_msi_msg() is not called anywhere, and I need
to have valid msg->address_lo and msg->address_hi and msg->data
in order to be able to restore.

In particular, this has to happen after the call to
arch_setup_msi_irqs
as otherwise, the arch hasn't yet filled these fields with correct
values.

Perhaps this is fixed in the kernel you're working with?

It's possible that this doesn't work on pseries.  I've only tested
pci_restore_msi_state() on x86 in the context of suspend and resume.
During resume, the MSI state gets restored correctly on x86.