Hi Bjorn, On Wed, Apr 13, 2016 at 12:56:59AM -0500, Bjorn Helgaas wrote: > We reverted the following changes from v4.5 to fix a regression: > > 8affb487d4a4 ("x86/PCI: Don't alloc pcibios-irq when MSI is enabled") > 811a4e6fce09 ("PCI: Add helpers to manage pci_dev->irq and pci_dev->irq_managed") > 991de2e59090 ("PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()") Do you have a link to the thread about these issues? I'd like to have a look at what has been tried to solve the regressions before the revert. I had a look at commit 991de2e59090 and noted that the main difference it introduces is that the pcibios-irq is allocated earlier (probe time, before the commit it was pci_enable_device() time). In fact, it is now allocated before pci_enable_resources() has been called on the device (as far as I can see). I wonder if the regression can be fixed by also moving pci_enable_resources() to probe time. Regards, Joerg -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html