From 776187826bb63646d110e577570b368e57ea73fa Mon Sep 17 00:00:00 2001 From: "kaf24@firebug.cl.cam.ac.uk" Date: Sun, 24 Sep 2006 10:14:17 +0100 Subject: [PATCH] [XEN] Support unconnected IRQ lines in pirq_acktype(). Signed-off-by: Keir Fraser --- xen/arch/x86/irq.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/xen/arch/x86/irq.c b/xen/arch/x86/irq.c index 56e14e3e6f..4fa637ad01 100644 --- a/xen/arch/x86/irq.c +++ b/xen/arch/x86/irq.c @@ -351,6 +351,9 @@ int pirq_acktype(int irq) desc = &irq_desc[vector]; + if ( desc->handler == &no_irq_type ) + return ACKTYPE_NONE; + /* * Edge-triggered IO-APIC and LAPIC interrupts need no final * acknowledgement: we ACK early during interrupt processing. -- 2.30.2