fix: tracepoint: Optimize using static_call() (v5.10)

[lttng-modules.git] / wrapper / tracepoint.h

diff --git a/wrapper/tracepoint.h b/wrapper/tracepoint.h
index 08e8ccabff3eb910bf06b42f9c9fe54aa5cc55e3..bc19d8c123139cd27aceea1c579b9f962e7e044f 100644 (file)
--- a/wrapper/tracepoint.h
+++ b/wrapper/tracepoint.h
@@ -14,6 +14,14 @@
 #include <linux/tracepoint.h>
 #include <linux/module.h>
 
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,10,0))
+#define LTTNG_DEFINE_TRACE(name, proto, args)          \
+       DEFINE_TRACE(name, PARAMS(proto), PARAMS(args))
+#else
+#define LTTNG_DEFINE_TRACE(name, proto, args)          \
+       DEFINE_TRACE(name)
+#endif
+
 #ifndef HAVE_KABI_2635_TRACEPOINT
 
 #define kabi_2635_tracepoint_probe_register tracepoint_probe_register
@@ -68,6 +76,17 @@ int wrapper_tracepoint_module_notify(struct notifier_block *nb,
        }
 }
 
+/*
+ * No canary for 'tracepoint_module_notify()', it's only defined in 'kernel/tracepoint.c'.
+ *
+ * static inline
+ * int __canary__tracepoint_module_notify(struct notifier_block *nb,
+ *             unsigned long val, struct module *mod)
+ * {
+ *     return tracepoint_module_notify(nb, val, mod);
+ * }
+ */
+
 #endif /* #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,15,0) && defined(CONFIG_MODULE_SIG)) */
 
 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,15,0) && defined(CONFIG_MODULE_SIG) && defined(MODULE))