diff options
| author | Yinghai Lu <yhlu.kernel@gmail.com> | 2008-06-14 01:26:41 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-08 10:36:40 +0200 |
| commit | d867e5310bd3c560093d39669ef52ff7f1b5711a (patch) | |
| tree | 3be9c3a370de73eef951be4d6bd530064aa9fd3b /arch/x86/kernel/acpi | |
| parent | 9a27f5c51629c3d3b7718dd4be3d2722b472fafe (diff) | |
x86: keep MP_intsrc_info untouched if we do not update mptable
Daniel Exner reported IO-APIC enumeration breakage in linux-next.
Alexey Starikovskiy found out that it might be related to
commit 2944e16b25 "x86: update mptable".
use enable_update_mptable to decide if need check before add mp_irqs array.
Reported-by: Daniel Exner <webmaster@dragonslave.de>
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/acpi')
| -rw-r--r-- | arch/x86/kernel/acpi/boot.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index caf4ed7ca069..4d370b1c5ae8 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -1172,6 +1172,9 @@ int mp_config_acpi_gsi(unsigned char number, unsigned int devfn, u8 pin, struct mpc_config_intsrc intsrc; int ioapic; + if (!enable_update_mptable) + return 0; + /* print the entry should happen on mptable identically */ intsrc.mpc_type = MP_INTSRC; intsrc.mpc_irqtype = mp_INT; |