Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[~andy/linux] / arch / x86 / mm / numa.c

diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 496f494593bf6cfa7f7069c58af5c153f6af1965..020cd2e808732408a31cad1294c5d8faa153fa5f 100644 (file)
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -422,8 +422,9 @@ static int __init numa_alloc_distance(void)
  * calls are ignored until the distance table is reset with
  * numa_reset_distance().
  *
- * If @from or @to is higher than the highest known node at the time of
- * table creation or @distance doesn't make sense, the call is ignored.
+ * If @from or @to is higher than the highest known node or lower than zero
+ * at the time of table creation or @distance doesn't make sense, the call
+ * is ignored.
  * This is to allow simplification of specific NUMA config implementations.
  */
 void __init numa_set_distance(int from, int to, int distance)
@@ -431,8 +432,9 @@ void __init numa_set_distance(int from, int to, int distance)
        if (!numa_distance && numa_alloc_distance() < 0)
                return;
 
-       if (from >= numa_distance_cnt || to >= numa_distance_cnt) {
-               printk_once(KERN_DEBUG "NUMA: Debug: distance out of bound, from=%d to=%d distance=%d\n",
+       if (from >= numa_distance_cnt || to >= numa_distance_cnt ||
+                       from < 0 || to < 0) {
+               pr_warn_once("NUMA: Warning: node ids are out of bound, from=%d to=%d distance=%d\n",
                            from, to, distance);
                return;
        }