Two issues have been reported against patch set "use irqdomain to dynamically allocate IRQ for IOAPIC" at https://lkml.org/lkml/2014/6/9/44. This first one causes failure of suspend/hibernation, please refer to https://lkml.org/lkml/2014/7/28/822 for more information. And we have worked out a patch to fix it (https://lkml.org/lkml/2014/7/30/725) and Borislav has tested it. But with more testing and analysis, I found the provided patch still has some issues: 1) It may cause regression to Xen 2) Flag dev->dev.power.is_prepared has already been cleared when pcibios_enable_device() gets called, so it will cause IOAPIC pin reference count leak. So I reworked the patch to fix above issues. The first patch fixes issue 1 by moving check of dev->dev.power.is_prepared pcibios_enable_irq, so it won't affect Xen. The second patch fixes the IOAPIC pin reference count leakage issue. It also solves the issue we have discussed at http://www.spinics.net/lists/linux-pci/msg32902.html Regards! Gerry Jiang Liu (2): x86, irq, PCI: Keep IRQ assignment for PCI devices during suspend/hibernation x86, irq: Keep balance of IOAPIC pin reference count arch/x86/pci/intel_mid_pci.c | 9 ++++++++- arch/x86/pci/irq.c | 8 +++++++- drivers/acpi/pci_irq.c | 15 +++++++++++++-- include/linux/pci.h | 1 + 4 files changed, 29 insertions(+), 4 deletions(-) -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
