s390/smp: get rid of compile warning
Add missing #ifdep CONFIG_HOTPLUG_CPU to get rid of this one:
arch/s390/kernel/smp.c:229:13: warning: 'pcpu_free_lowcore'
defined but not used [-Wunused-function]
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 1f77227..e505458 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -226,6 +226,8 @@
return -ENOMEM;
}
+#ifdef CONFIG_HOTPLUG_CPU
+
static void pcpu_free_lowcore(struct pcpu *pcpu)
{
pcpu_sigp_retry(pcpu, sigp_set_prefix, 0);
@@ -247,6 +249,8 @@
}
}
+#endif /* CONFIG_HOTPLUG_CPU */
+
static void pcpu_prepare_secondary(struct pcpu *pcpu, int cpu)
{
struct _lowcore *lc = pcpu->lowcore;