ppc64: allow iSeries to use IRQSTACKS again (5a7b3ff4) · Commits · e / devices / android_kernel_sony_msm8994

arch/powerpc/platforms/iseries/irq.c

+17 −1

Original line number	Diff line number	Diff line
		@@ -103,6 +103,9 @@ static void intReceived(struct XmPciLpEvent *eventParm,
		struct pt_regs *regsParm)
		{
		int irq;
		#ifdef CONFIG_IRQSTACKS
		struct thread_info curtp, irqtp;
		#endif

		++Pci_Interrupt_Count;

		@@ -110,6 +113,19 @@ static void intReceived(struct XmPciLpEvent *eventParm,
		case XmPciLpEvent_SlotInterrupt:
		irq = eventParm->hvLpEvent.xCorrelationToken;
		/* Dispatch the interrupt handlers for this irq */
		#ifdef CONFIG_IRQSTACKS
		/* Switch to the irq stack to handle this */
		curtp = current_thread_info();
		irqtp = hardirq_ctx[smp_processor_id()];
		if (curtp != irqtp) {
		irqtp->task = curtp->task;
		irqtp->flags = 0;
		call_ppc_irq_dispatch_handler(regsParm, irq, irqtp);
		irqtp->task = NULL;
		if (irqtp->flags)
		set_bits(irqtp->flags, &curtp->flags);
		} else
		#endif
		ppc_irq_dispatch_handler(regsParm, irq);
		HvCallPci_eoi(eventParm->eventData.slotInterrupt.busNumber,
		eventParm->eventData.slotInterrupt.subBusNumber,