diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index bc0ac6b333dc95464da43485d40a5966ef60eeb6..dfd60192bc2ede37835fa8ed894bc024b0f1908a 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -797,7 +797,7 @@ char *uuid_string(char *buf, char *end, const u8 *addr,
 	return string(buf, end, uuid, spec);
 }
 
-int kptr_restrict = 1;
+int kptr_restrict __read_mostly;
 
 /*
  * Show a '%p' thing.  A kernel extension is that the '%p' is followed