Commit-ID: 565cbc3e934f221369a656b4469a044aa4c3f2a8
Gitweb: http://git.kernel.org/tip/565cbc3e934f221369a656b4469a044aa4c3f2a8
Author: Don Zickus <dzickus@xxxxxxxxxx>
AuthorDate: Tue, 6 Dec 2011 13:08:59 -0500
Committer: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Tue, 6 Dec 2011 21:02:39 +0100
x86, NMI: NMI-selftest should handle the UP case properly
If no remote cpus are online, then just quietly skip the remote
IPI test for now.
Signed-off-by: Don Zickus <dzickus@xxxxxxxxxx>
Cc: andi@xxxxxxxxxxxxxx
Cc: torvalds@xxxxxxxxxxxxxxxxxxxx
Cc: peterz@xxxxxxxxxxxxx
Cc: robert.richter@xxxxxxx
Link: http://lkml.kernel.org/r/20111206180859.GR1669@xxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
arch/x86/kernel/nmi_selftest.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kernel/nmi_selftest.c b/arch/x86/kernel/nmi_selftest.c
index 572adb6..1e42a23 100644
--- a/arch/x86/kernel/nmi_selftest.c
+++ b/arch/x86/kernel/nmi_selftest.c
@@ -90,7 +90,8 @@ static void remote_ipi(void)
{
cpumask_copy(to_cpumask(nmi_ipi_mask), cpu_online_mask);
cpumask_clear_cpu(smp_processor_id(), to_cpumask(nmi_ipi_mask));
- test_nmi_ipi(to_cpumask(nmi_ipi_mask));
+ if (!cpumask_empty(nmi_ipi_mask))
+ test_nmi_ipi(to_cpumask(nmi_ipi_mask));
}
static void local_ipi(void)
--
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