This fixes a hang when initializing SMP CPUs at this point in the boot:
x86: Booting SMP configuration
.... node #0, CPUs: #1_
Fixes: 4ba2968420fa ("percpu: Resolve ambiguities in
__get_cpu_var/cpumask_var_t")
Signed-off-by: Ted Percival <t...@tedp.id.au>
---
arch/x86/kernel/apic/x2apic_cluster.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/kernel/apic/x2apic_cluster.c
b/arch/x86/kernel/apic/x2apic_cluster.c
index 1f5d5f2ffae6..e658f21681c8 100644
--- a/arch/x86/kernel/apic/x2apic_cluster.c
+++ b/arch/x86/kernel/apic/x2apic_cluster.c
@@ -43,6 +43,7 @@ __x2apic_send_IPI_mask(const struct cpumask *mask, int
vector, int apic_dest)
* and be sure it's manipulated with irq off.
*/
ipi_mask_ptr = this_cpu_cpumask_var_ptr(ipi_mask);
+ cpumask_copy(ipi_mask_ptr, mask);
/*
* The idea is to send one IPI per cluster.
--
1.9.1
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