Merge branch 'master' into 83xx

[linux-drm-fsl-dcu.git] / lib / fault-inject.c

diff --git a/lib/fault-inject.c b/lib/fault-inject.c
index d143c0faf248f8485f45c6ad655283e9388f8284..b5a90fc056d3406b838cd71632b91985ce62b09e 100644 (file)
--- a/lib/fault-inject.c
+++ b/lib/fault-inject.c
@@ -55,37 +55,7 @@ static bool fail_task(struct fault_attr *attr, struct task_struct *task)
 
 #define MAX_STACK_TRACE_DEPTH 32
 
-#ifdef CONFIG_STACK_UNWIND
-
-static asmlinkage int fail_stacktrace_callback(struct unwind_frame_info *info,
-                                               void *arg)
-{
-       int depth;
-       struct fault_attr *attr = arg;
-       bool found = (attr->require_start == 0 && attr->require_end == ULONG_MAX);
-
-       for (depth = 0; depth < attr->stacktrace_depth
-                       && unwind(info) == 0 && UNW_PC(info); depth++) {
-               if (arch_unw_user_mode(info))
-                       break;
-               if (attr->reject_start <= UNW_PC(info) &&
-                              UNW_PC(info) < attr->reject_end)
-                       return false;
-               if (attr->require_start <= UNW_PC(info) &&
-                              UNW_PC(info) < attr->require_end)
-                       found = true;
-       }
-       return found;
-}
-
-static bool fail_stacktrace(struct fault_attr *attr)
-{
-       struct unwind_frame_info info;
-
-       return unwind_init_running(&info, fail_stacktrace_callback, attr);
-}
-
-#elif defined(CONFIG_STACKTRACE)
+#if defined(CONFIG_STACKTRACE)
 
 static bool fail_stacktrace(struct fault_attr *attr)
 {