1 files changed, 7 insertions, 0 deletions

diff --git a/arch/x86_64/mm/srat.c b/arch/x86_64/mm/srat.c
index 92f6ec79b232..db6b073a149f 100644
--- a/arch/x86_64/mm/srat.c
+++ b/arch/x86_64/mm/srat.c
@@ -25,6 +25,13 @@ static nodemask_t nodes_found __initdata;
 static struct node nodes[MAX_NUMNODES] __initdata;
 static __u8  pxm2node[256] = { [0 ... 255] = 0xff };
 
+int pxm_to_node(int pxm)
+{
+        if ((unsigned)pxm >= 256)
+                return 0;
+        return pxm2node[pxm];
+}
+
 static __init int setup_node(int pxm)
 {
         unsigned node = pxm2node[pxm];