This patch set introduces a mechanism to allocate PCI IRQ on demand and free it when not used anymore by hooking pci_device_probe() and pci_device_remove(). It will be used to track IOAPIC pin usage on x86 so we could support IOAPIC hot-removal. The patch set passes Fengguang's 0day test suite and is available at: https://github.com/jiangliu/linux.git pci_irq_v1 Thanks! Gerry Jiang Liu (4): PCI: Add hooks to allocate/free IRQ resources when binding/unbinding driver PCI, MSI: Optionally free legacy PCI IRQ when enabling MSI/MSI-X PCI, x86: Allocate PCI IRQ on demand and free it when not used anymore PCI: Introduce helpers to manage pci_dev->irq and pci_dev->irq_managed arch/x86/include/asm/pci_x86.h | 2 -- arch/x86/pci/common.c | 20 +++++++++----------- arch/x86/pci/intel_mid_pci.c | 9 ++++++--- arch/x86/pci/irq.c | 23 ++++------------------- drivers/acpi/pci_irq.c | 17 ++++------------- drivers/pci/msi.c | 6 +++++- drivers/pci/pci-driver.c | 33 +++++++++++++++++++++++---------- include/linux/pci.h | 19 +++++++++++++++++++ 8 files changed, 70 insertions(+), 59 deletions(-) -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
