commit 60d970c254b95ec7a0fc4c590b510253987b64a0
author Ingo Molnar <mingo@elte.hu> Thu Aug 13 23:37:26 2009 +0200
committer Ingo Molnar <mingo@elte.hu> Thu Aug 13 23:38:20 2009 +0200
tree 3f99d03bf8af498ef57376f65b7c18b9e18b098a
parent 19007a67a64f9b3cbbd7024f972654ebf14daade

tracing: Fix syscall tracing on !HAVE_FTRACE_SYSCALLS architectures

The new syscall_regfunc()/unregfunc() functions rely on
the existence of TIF_SYSCALL_FTRACE - but that TIF flag
is only offered by HAVE_FTRACE_SYSCALLS.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

kernel/tracepoint.c

diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
index 070a42b..35dd27a 100644
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -579,6 +579,8 @@
 
 #endif /* CONFIG_MODULES */
 
+#ifdef CONFIG_FTRACE_SYSCALLS
+
 static DEFINE_MUTEX(regfunc_mutex);
 static int sys_tracepoint_refcount;
 
@@ -615,3 +617,4 @@
 	}
 	mutex_unlock(&regfunc_mutex);
 }
+#endif