sparc64: Allow chmc to be built as a module.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c
index d44b2ee..3b2890c 100644
--- a/arch/sparc64/kernel/sparc64_ksyms.c
+++ b/arch/sparc64/kernel/sparc64_ksyms.c
@@ -299,3 +299,5 @@
 EXPORT_SYMBOL(xor_niagara_3);
 EXPORT_SYMBOL(xor_niagara_4);
 EXPORT_SYMBOL(xor_niagara_5);
+
+EXPORT_SYMBOL_GPL(real_hard_smp_processor_id);