On 2015/5/19 21:35, Thomas Gleixner wrote:
> On Thu, 7 May 2015, Jiang Liu wrote:
>
>> 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.
>
> Bjorn, any opinion on this?
Hi Bjorn,
With this patch applied, how about removing this workaround
from arch/x86/pci/irq.c?
-------------------------------------------------------------------
if (io_apic_assign_pci_irqs && pci_routeirq) {
struct pci_dev *dev = NULL;
/*
* PCI IRQ routing is set up by pci_enable_device(), but we
* also do it here in case there are still broken
drivers that
* don't use pci_enable_device().
*/
printk(KERN_INFO "PCI: Routing PCI interrupts for all
devices because \"pci=routeirq\" specified\n");
for_each_pci_dev(dev)
pirq_enable_irq(dev);
}
-------------------------------------------------------
Thanks!
Gerry
>
> Thanks,
>
> tglx
>
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