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-rw-r--r--arch/s390/mm/vmem.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index 5ed2e9254649..86384586eb20 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -499,6 +499,8 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node,
return ret;
}
+#ifdef CONFIG_MEMORY_HOTPLUG
+
void vmemmap_free(unsigned long start, unsigned long end,
struct vmem_altmap *altmap)
{
@@ -507,6 +509,8 @@ void vmemmap_free(unsigned long start, unsigned long end,
mutex_unlock(&vmem_mutex);
}
+#endif
+
void vmem_remove_mapping(unsigned long start, unsigned long size)
{
mutex_lock(&vmem_mutex);