memory_add_physaddr_to_nid() is declared in include/linux/memory_hotplug.h,
protected by CONFIG_NUMA. And in x86, the definitions are protected by
CONFIG_MEMORY_HOTPLUG.
memory_add_physaddr_to_nid() uses numa_meminfo to find the physical address's
nid. It has nothing to do with memory hotplug. And also, it can be used by
alloc_low_pages() to obtain nid of the allocated memory.
So in x86, also use CONFIG_NUMA to protect it.
Signed-off-by: Tang Chen <tangchen@xxxxxxxxxxxxxx>
---
arch/x86/mm/numa.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 105b092..1367fe4 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -959,7 +959,7 @@ EXPORT_SYMBOL(cpumask_of_node);
#endif /* !CONFIG_DEBUG_PER_CPU_MAPS */
-#ifdef CONFIG_MEMORY_HOTPLUG
+#ifdef CONFIG_NUMA
int memory_add_physaddr_to_nid(u64 start)
{
struct numa_meminfo *mi = &numa_meminfo;
--
1.7.1
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