Hi, This is a new patch series made around a discrete patch submitted earlier on that has gone nowhere, which is now 1/4. That change handles $PIR PIRQ routing tables that lack router device information, fixing the inability to route interrupts with a system using the SiS85C497 ISA bridge. It has been minimally updated from v1 by including router device information reported with the change description, and by adding Nikolai's Tested-by annotation. Then 2/4 adds support for the $IRT PIRQ routing table format invented by AMI before Microsoft has come up with its own $PIR format. These formats are very similar to each other, but the $IRT format does not provide for router device information, so this change relies on 1/4. It has turned out needed to route interrupts with a system using the ALi M1487 ISA Bus Controller device, discussed earlier on in a discussion thread around: <https://lore.kernel.org/linux-pci/61377A45.8030003@xxxxxxxxx/>. This change has been verified with an artificially created $IRT table and hopefully Nikolai will be able to verify this code with his system as well. Then 3/4 corrects our link value interpretation for said M1487 device according to Nikolai's findings with his system reported here: <https://lore.kernel.org/linux-pci/61428EDF.9030203@xxxxxxxxx/>. Finally 4/4 corrects a couple of coding style issues around though not immediately within code changed by 2/4 so as to make the style consistent. See individual change descriptions for further details. Credit to Michal (cc-ed) for helping me chase documentation for the $IRT table format. Please apply. Maciej
