1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/misc/lkdtm/bugs.c b/drivers/misc/lkdtm/bugs.c
index 1606658b9b7e..24245ccdba72 100644
--- a/drivers/misc/lkdtm/bugs.c
+++ b/drivers/misc/lkdtm/bugs.c
@@ -22,7 +22,7 @@ struct lkdtm_list {
  * recurse past the end of THREAD_SIZE by default.
  */
 #if defined(CONFIG_FRAME_WARN) && (CONFIG_FRAME_WARN > 0)
-#define REC_STACK_SIZE (CONFIG_FRAME_WARN / 2)
+#define REC_STACK_SIZE (_AC(CONFIG_FRAME_WARN, UL) / 2)
 #else
 #define REC_STACK_SIZE (THREAD_SIZE / 8)
 #endif
@@ -91,7 +91,7 @@ void lkdtm_LOOP(void)
 
 void lkdtm_EXHAUST_STACK(void)
 {
-        pr_info("Calling function with %d frame size to depth %d ...\n",
+        pr_info("Calling function with %lu frame size to depth %d ...\n",
                 REC_STACK_SIZE, recur_count);
         recursive_loop(recur_count);
         pr_info("FAIL: survived without exhausting stack?!\n");