[S390] Automatically detect added cpus.
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
diff --git a/include/asm-s390/smp.h b/include/asm-s390/smp.h
index 6f3821a6..8376b19 100644
--- a/include/asm-s390/smp.h
+++ b/include/asm-s390/smp.h
@@ -108,5 +108,11 @@
#define smp_cpu_not_running(cpu) 1
#endif
+#ifdef CONFIG_HOTPLUG_CPU
+extern int smp_rescan_cpus(void);
+#else
+static inline int smp_rescan_cpus(void) { return 0; }
+#endif
+
extern union save_area *zfcpdump_save_areas[NR_CPUS + 1];
#endif
