Fix: wrapper random documentation

[lttng-modules.git] / wrapper / random.c

diff --git a/wrapper/random.c b/wrapper/random.c
index da8cb176bce9e5904542834cd4acbc4833eeacb2..7b91fc7f3e146a4b8046b7996ecb4855812537a5 100644 (file)
--- a/wrapper/random.c
+++ b/wrapper/random.c
@@ -1,13 +1,14 @@
-/*
- * Copyright (C) 2011 Mathieu Desnoyers (mathieu.desnoyers@efficios.com)
+/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
+ *
+ * wrapper/random.c
  *
- * wrapper around bootid read. Using KALLSYMS to get its address when
- * available, else we need to have a kernel that exports this function to GPL
- * modules.
+ * wrapper around bootid read. Read the boot id through the /proc filesystem.
  *
- * Dual LGPL v2.1/GPL v2 license.
+ * Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  */
 
+#include <linux/errno.h>
+
 /* boot_id depends on sysctl */
 #if defined(CONFIG_SYSCTL)
 
@@ -15,7 +16,7 @@
 #include <linux/file.h>
 #include <linux/sched.h>
 #include <linux/uaccess.h>
-#include "random.h"
+#include <wrapper/random.h>
 
 /*
  * Returns string boot id.
@@ -44,7 +45,7 @@ int wrapper_get_bootid(char *bootid)
                ret = -EINVAL;
                goto end;
        }
-       
+
        bootid[BOOT_ID_LEN - 1] = '\0';
        ret = 0;
 end:
@@ -52,6 +53,7 @@ end:
        filp_close(file, current->files);
        return ret;
 }
+EXPORT_SYMBOL_GPL(wrapper_get_bootid);
 
 #else
 
@@ -59,5 +61,6 @@ int wrapper_get_bootid(char *bootid)
 {
        return -ENOSYS;
 }
+EXPORT_SYMBOL_GPL(wrapper_get_bootid);
 
 #endif