ASoC: tlv320aic31xx: Add overflow detection support

[linux.git] / kernel / tracepoint.c

diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
index 96db841bf0fc89d1bea38ee7ccfb8faf909df420..bf2c06ef9afc3d5c2a5eecb620aa9acb07a7bba5 100644 (file)
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -371,6 +371,27 @@ int tracepoint_probe_unregister(struct tracepoint *tp, void *probe, void *data)
 }
 EXPORT_SYMBOL_GPL(tracepoint_probe_unregister);
 
+static void for_each_tracepoint_range(struct tracepoint * const *begin,
+               struct tracepoint * const *end,
+               void (*fct)(struct tracepoint *tp, void *priv),
+               void *priv)
+{
+       if (!begin)
+               return;
+
+       if (IS_ENABLED(CONFIG_HAVE_ARCH_PREL32_RELOCATIONS)) {
+               const int *iter;
+
+               for (iter = (const int *)begin; iter < (const int *)end; iter++)
+                       fct(offset_to_ptr(iter), priv);
+       } else {
+               struct tracepoint * const *iter;
+
+               for (iter = begin; iter < end; iter++)
+                       fct(*iter, priv);
+       }
+}
+
 #ifdef CONFIG_MODULES
 bool trace_module_has_bad_taint(struct module *mod)
 {
@@ -435,15 +456,9 @@ EXPORT_SYMBOL_GPL(unregister_tracepoint_module_notifier);
  * Ensure the tracer unregistered the module's probes before the module
  * teardown is performed. Prevents leaks of probe and data pointers.
  */
-static void tp_module_going_check_quiescent(struct tracepoint * const *begin,
-               struct tracepoint * const *end)
+static void tp_module_going_check_quiescent(struct tracepoint *tp, void *priv)
 {
-       struct tracepoint * const *iter;
-
-       if (!begin)
-               return;
-       for (iter = begin; iter < end; iter++)
-               WARN_ON_ONCE((*iter)->funcs);
+       WARN_ON_ONCE(tp->funcs);
 }
 
 static int tracepoint_module_coming(struct module *mod)
@@ -494,8 +509,9 @@ static void tracepoint_module_going(struct module *mod)
                         * Called the going notifier before checking for
                         * quiescence.
                         */
-                       tp_module_going_check_quiescent(mod->tracepoints_ptrs,
-                               mod->tracepoints_ptrs + mod->num_tracepoints);
+                       for_each_tracepoint_range(mod->tracepoints_ptrs,
+                               mod->tracepoints_ptrs + mod->num_tracepoints,
+                               tp_module_going_check_quiescent, NULL);
                        break;
                }
        }
@@ -547,19 +563,6 @@ static __init int init_tracepoints(void)
 __initcall(init_tracepoints);
 #endif /* CONFIG_MODULES */
 
-static void for_each_tracepoint_range(struct tracepoint * const *begin,
-               struct tracepoint * const *end,
-               void (*fct)(struct tracepoint *tp, void *priv),
-               void *priv)
-{
-       struct tracepoint * const *iter;
-
-       if (!begin)
-               return;
-       for (iter = begin; iter < end; iter++)
-               fct(*iter, priv);
-}
-
 /**
  * for_each_kernel_tracepoint - iteration on all kernel tracepoints
  * @fct: callback