On 09/09/14 03:06, Yijing Wang wrote: > On 2014/9/5 22:29, David Vrabel wrote: >> On 05/09/14 11:09, Yijing Wang wrote: >>> Use MSI chip framework instead of arch MSI functions to configure >>> MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. >> [...] >>> --- a/arch/x86/pci/xen.c >>> +++ b/arch/x86/pci/xen.c >> [...] >>> @@ -418,9 +430,9 @@ int __init pci_xen_init(void) >>> #endif >>> >>> #ifdef CONFIG_PCI_MSI >>> - x86_msi.setup_msi_irqs = xen_setup_msi_irqs; >>> - x86_msi.teardown_msi_irq = xen_teardown_msi_irq; >>> - x86_msi.teardown_msi_irqs = xen_teardown_msi_irqs; >>> + xen_msi_chip.setup_irqs = xen_setup_msi_irqs; >>> + xen_msi_chip.teardown_irqs = xen_teardown_msi_irqs; >>> + x86_msi_chip = &xen_msi_chip; >>> msi_chip.irq_mask = xen_nop_msi_mask; >>> msi_chip.irq_unmask = xen_nop_msi_mask; >> >> Why have these not been changed to set the x86_msi_chip.mask/unmask >> fields instead? > > Hi David, x86_msi_chip here is struct msi_chip data type, used to configure MSI/MSI-X > irq. msi_chip above is struct irq_chip data type, represent the MSI irq controller. They are > not the same object. Their name easily confusing people. Ok, it all makes sense now. Acked-by: David Vrabel <david.vrabel@xxxxxxxxxx> David
