xen/x86: Don't BUG on CPU0 offlining
CONFIG_BOOTPARAM_HOTPLUG_CPU0 allows to offline CPU0 but Xen HVM guests BUG() in xen_teardown_timer(). Remove the BUG_ON(), this is probably a leftover from ancient times when CPU0 hotplug was impossible, it works just fine for HVM. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Acked-by: Juergen Gross <jgross@suse.com> Signed-off-by: Juergen Gross <jgross@suse.com>
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@ -309,7 +309,6 @@ static irqreturn_t xen_timer_interrupt(int irq, void *dev_id)
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void xen_teardown_timer(int cpu)
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void xen_teardown_timer(int cpu)
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{
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{
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struct clock_event_device *evt;
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struct clock_event_device *evt;
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BUG_ON(cpu == 0);
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evt = &per_cpu(xen_clock_events, cpu).evt;
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evt = &per_cpu(xen_clock_events, cpu).evt;
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if (evt->irq >= 0) {
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if (evt->irq >= 0) {
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