[S390] Automatically detect added cpus.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/include/asm-s390/smp.h b/include/asm-s390/smp.h
index 6f3821a6a902..8376b195a1b6 100644
--- a/include/asm-s390/smp.h
+++ b/include/asm-s390/smp.h
@@ -108,5 +108,11 @@ static inline void smp_send_stop(void)
 #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