From: Josh Stone <jistone@xxxxxxxxxx> The syscall enter/exit tracepoints are only supported on archs that HAVE_SYSCALL_TRACEPOINTS, so the declarations should be #ifdef'ed. Also, the definition of syscall_regfunc and syscall_unregfunc should depend on this same config, rather than the ftrace-specific one. Signed-off-by: Josh Stone <jistone@xxxxxxxxxx> Cc: Jason Baron <jbaron@xxxxxxxxxx> Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxx> Cc: Li Zefan <lizf@xxxxxxxxxxxxxx> Cc: Steven Rostedt <rostedt@xxxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxx> Cc: Jiaying Zhang <jiayingz@xxxxxxxxxx> Cc: Martin Bligh <mbligh@xxxxxxxxxx> Cc: Lai Jiangshan <laijs@xxxxxxxxxxxxxx> LKML-Reference: <1251150194-1713-3-git-send-email-jistone@xxxxxxxxxx> Signed-off-by: Frederic Weisbecker <fweisbec@xxxxxxxxx> --- include/trace/syscall.h | 4 ++++ kernel/tracepoint.c | 2 +- 2 files changed, 5 insertions(+), 1 deletions(-) diff --git a/include/trace/syscall.h b/include/trace/syscall.h index 9661dd4..5dcb7e3 100644 --- a/include/trace/syscall.h +++ b/include/trace/syscall.h @@ -8,6 +8,8 @@ #include <asm/ptrace.h> +#ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS + extern void syscall_regfunc(void); extern void syscall_unregfunc(void); @@ -25,6 +27,8 @@ DECLARE_TRACE_WITH_CALLBACK(syscall_exit, syscall_unregfunc ); +#endif + /* * A syscall entry in the ftrace syscalls array. * diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c index be86b9a..9e0a36f 100644 --- a/kernel/tracepoint.c +++ b/kernel/tracepoint.c @@ -576,7 +576,7 @@ __initcall(init_tracepoints); #endif /* CONFIG_MODULES */ -#ifdef CONFIG_FTRACE_SYSCALLS +#ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS static DEFINE_MUTEX(regfunc_mutex); static int sys_tracepoint_refcount; -- 1.6.2.3 -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
