Commit bb84ac2d authored Nov 10, 2011 by Jacob Pan Committed by Ingo Molnar Nov 10, 2011

x86/apic: Do not clear nr_irqs_gsi if no legacy irqs



nr_legacy_irqs is set in probe_nr_irqs_gsi, we should not clear
it after that. Otherwise, the result is that MSI irqs will be
allocated from the wrong range for the systems without legacy
PIC.

Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent cf8ff6b6

arch/x86/kernel/apic/io_apic.c

+1 −3

Original line number	Diff line number	Diff line
		@@ -193,10 +193,8 @@ int __init arch_early_irq_init(void)
		struct irq_cfg *cfg;
		int count, node, i;

		if (!legacy_pic->nr_legacy_irqs) {
		nr_irqs_gsi = 0;
		if (!legacy_pic->nr_legacy_irqs)
		io_apic_irqs = ~0UL;
		}

		for (i = 0; i < nr_ioapics; i++) {
		ioapics[i].saved_registers =