On Tue, Mar 20, 2012 at 9:20 AM, Jiang Liu <liuj97@xxxxxxxxx> wrote: > Unused entries in ioapics array should be marked as free at startup, > so they could be used by hot-added IOAPICs. > > Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxx> > --- > arch/x86/kernel/apic/io_apic.c | 4 ++++ > 1 files changed, 4 insertions(+), 0 deletions(-) > > diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c > index 7412eb8..622374f 100644 > --- a/arch/x86/kernel/apic/io_apic.c > +++ b/arch/x86/kernel/apic/io_apic.c > @@ -392,6 +392,10 @@ int __init arch_early_irq_init(void) > cpumask_set_cpu(0, cfg->domain); > } > > + /* Mark all left entries as free for IOAPIC hot-adding. */ > + for (i = nr_ioapics; i < MAX_IO_APICS; i++) > + ioapics[i].mp_config.apicid = 0xff; > + > return 0; > } this one looks like not needed, we did not search that after nr_ioapics, and just use nr_ioapics if open spot is found. Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
