Messages in this thread Patch in this message | | | Date | Fri, 22 Oct 2021 16:48:21 -0400 | From | Steven Rostedt <> | Subject | [for-next][PATCH 25/40] tracing: Fix selftest config check for function graph start up test |
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From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
There's a new test in trace_selftest_startup_function_graph() that requires the use of ftrace args being supported as well does some tricks with dynamic tracing. Although this code checks HAVE_DYNAMIC_FTRACE_WITH_ARGS it fails to check DYNAMIC_FTRACE, and the kernel fails to build due to that dependency.
Also only define the prototype of trace_direct_tramp() if it is used.
Link: https://lkml.kernel.org/r/20211021134357.7f48e173@gandalf.local.home
Acked-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> --- kernel/trace/trace_selftest.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c index 3404a245417e..afd937a46496 100644 --- a/kernel/trace/trace_selftest.c +++ b/kernel/trace/trace_selftest.c @@ -784,7 +784,11 @@ static struct fgraph_ops fgraph_ops __initdata = { .retfunc = &trace_graph_return, }; +#if defined(CONFIG_DYNAMIC_FTRACE) && \ + defined(CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS) +#define TEST_DIRECT_TRAMP noinline __noclone static void trace_direct_tramp(void) { } +#endif /* * Pretty much the same than for the function tracer from which the selftest @@ -845,7 +849,7 @@ trace_selftest_startup_function_graph(struct tracer *trace, goto out; } -#ifdef CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS +#ifdef TEST_DIRECT_TRAMP tracing_reset_online_cpus(&tr->array_buffer); set_graph_array(tr); -- 2.33.0
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