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| author | Don Zickus <dzickus@redhat.com> | 2011-12-06 19:08:59 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-12-06 21:02:39 +0100 |
| commit | 565cbc3e934f221369a656b4469a044aa4c3f2a8 (patch) | |
| tree | 2e0972c75772237db50eecfa2634ae69bfcf10b4 | |
| parent | x86: Fix the 32-bit stackoverflow-debug build (diff) | |
| download | linux-565cbc3e934f221369a656b4469a044aa4c3f2a8.tar.xz linux-565cbc3e934f221369a656b4469a044aa4c3f2a8.zip | |
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@redhat.com>
Cc: andi@firstfloor.org
Cc: torvalds@linux-foundation.org
Cc: peterz@infradead.org
Cc: robert.richter@amd.com
Link: http://lkml.kernel.org/r/20111206180859.GR1669@redhat.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | 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 572adb622251..1e42a23c1f2a 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) |