linux_dsm_epyc7002/arch/x86/kernel/apic
Paul Bolle 678301ecad x86, ioapic: Don't warn about non-existing IOAPICs if we have none
mp_find_ioapic() prints errors like:

    ERROR: Unable to locate IOAPIC for GSI 13

if it can't find the IOAPIC that manages that specific GSI. I
see errors like that at every boot of a laptop that apparently
doesn't have any IOAPICs.

But if there are no IOAPICs it doesn't seem to be an error that
none can be found. A solution that gets rid of this message is
to directly return if nr_ioapics (still) is zero. (But keep
returning -1 in that case, so nothing breaks from this change.)

The call chain that generates this error is:

pnpacpi_allocated_resource()
    case ACPI_RESOURCE_TYPE_IRQ:
        pnpacpi_parse_allocated_irqresource()
            acpi_get_override_irq()
                 mp_find_ioapic()

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-02-15 04:15:04 +01:00
..
apic_flat_64.c arch/x86/kernel/apic/apic_flat_64.c: Make comment match the code 2010-02-04 11:55:47 +01:00
apic_noop.c x86: Fix bogus warning in apic_noop.apic_write() 2009-12-07 13:16:37 +01:00
apic.c x86: Fix section mismatch in LAPIC initialization 2011-02-10 13:26:53 +01:00
bigsmp_32.c x86, irq: Allow 0xff for /proc/irq/[n]/smp_affinity on an 8-cpu system 2009-12-17 22:03:06 -08:00
es7000_32.c x86/apic/es7000_32: Remove unused variable 2010-07-08 09:14:37 +02:00
hw_nmi.c x86, NMI: Remove DIE_NMI_IPI 2011-01-07 15:08:53 +01:00
io_apic.c x86, ioapic: Don't warn about non-existing IOAPICs if we have none 2011-02-15 04:15:04 +01:00
ipi.c Merge commit 'v2.6.31-rc7' into x86/cleanups 2009-08-24 12:25:54 +02:00
Makefile x86, nmi_watchdog: Remove the old nmi_watchdog 2010-11-18 09:08:23 +01:00
numaq_32.c x86, memblock: Replace e820_/_early string with memblock_ 2010-08-27 11:13:47 -07:00
probe_32.c x86, apic: Don't use logical-flat mode when CPU hotplug may exceed 8 CPUs 2010-02-09 20:51:11 -08:00
probe_64.c x86: Enable the intr-remap fault handling after local APIC setup 2010-12-13 16:53:32 -08:00
summit_32.c x86: apic: Do not use stacked physid_mask_t 2009-11-10 05:52:07 +01:00
x2apic_cluster.c x86, irq: Allow 0xff for /proc/irq/[n]/smp_affinity on an 8-cpu system 2009-12-17 22:03:06 -08:00
x2apic_phys.c x86, irq: Allow 0xff for /proc/irq/[n]/smp_affinity on an 8-cpu system 2009-12-17 22:03:06 -08:00
x2apic_uv_x.c Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-01-11 11:11:46 -08:00