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[Ralf: SMP support requires CPU hotplugging which MIPS currently doesn't
support. As implemented in this patch cache and tlb flushing will also be
invoked with interrupts disabled so smp_call_function() will blow up in
charming ways. So limit to !SMP.]Reviewed-by: Pavel Machek
Reviewed-by: Yan Hua
Reviewed-by: Arnaud Patard
Reviewed-by: Atsushi Nemoto
Signed-off-by: Wu Zhangjin
Signed-off-by: Hu Hongbing
Signed-off-by: Ralf Baechle