-/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
+/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
*
* wrapper/splice.c
*
* wrapper around splice_to_pipe. Using KALLSYMS to get its address when
* available, else we need to have a kernel that exports this function to GPL
- * modules.
+ * modules. The export was introduced in kernel 4.2.
*
* Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*/
-#ifdef CONFIG_KALLSYMS
+#include <lttng/kernel-version.h>
+
+#if (defined(CONFIG_KALLSYMS) \
+ && (LINUX_VERSION_CODE < KERNEL_VERSION(4,2,0)))
#include <linux/kallsyms.h>
#include <linux/fs.h>
struct splice_pipe_desc *spd)
{
if (!splice_to_pipe_sym)
- splice_to_pipe_sym = (void *) kallsyms_lookup_funcptr("splice_to_pipe");
+ splice_to_pipe_sym = (void *) kallsyms_lookup_funcptr("splice_to_pipe");
if (splice_to_pipe_sym) {
return splice_to_pipe_sym(pipe, spd);
} else {