of/selftest: Move hash table off stack to fix large frame size

The new testcase that checks phandle consistency was using a hash table
on the stack which made the frame size much large than it should be. Fix
the problem by moving the hash table into the file scope.

Signed-off-by: Grant Likely <grant.likely@linaro.org>

1 files changed, 4 insertions, 5 deletions

diff --git a/drivers/of/selftest.c b/drivers/of/selftest.c
index 4fed34bff5cf..78001270a598 100644
--- a/drivers/of/selftest.c
+++ b/drivers/of/selftest.c
@@ -198,20 +198,19 @@ struct node_hash {
         struct device_node *np;
 };
 
+static DEFINE_HASHTABLE(phandle_ht, 8);
 static void __init of_selftest_check_phandles(void)
 {
         struct device_node *np;
         struct node_hash *nh;
         struct hlist_node *tmp;
         int i, dup_count = 0, phandle_count = 0;
-        DECLARE_HASHTABLE(ht, 8);
 
-        hash_init(ht);
         for_each_of_allnodes(np) {
                 if (!np->phandle)
                         continue;
 
-                hash_for_each_possible(ht, nh, node, np->phandle) {
+                hash_for_each_possible(phandle_ht, nh, node, np->phandle) {
                         if (nh->np->phandle == np->phandle) {
                                 pr_info("Duplicate phandle! %i used by %s and %s\n",
                                         np->phandle, nh->np->full_name, np->full_name);
@@ -225,14 +224,14 @@ static void __init of_selftest_check_phandles(void)
                         return;
 
                 nh->np = np;
-                hash_add(ht, &nh->node, np->phandle);
+                hash_add(phandle_ht, &nh->node, np->phandle);
                 phandle_count++;
         }
         selftest(dup_count == 0, "Found %i duplicates in %i phandles\n",
                  dup_count, phandle_count);
 
         /* Clean up */
-        hash_for_each_safe(ht, i, tmp, nh, node) {
+        hash_for_each_safe(phandle_ht, i, tmp, nh, node) {
                 hash_del(&nh->node);
                 kfree(nh);
         }