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| author | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2018-11-23 19:06:07 +0100 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2018-12-09 02:54:06 +0100 |
| commit | c8dd0f45874547e6e77bab03d71feb16c4cb98a8 (patch) | |
| tree | 8f21cbbe70a8ab021f793cefa8f1045721809338 /kernel/trace/trace.h | |
| parent | ftrace: Create new ftrace_internal.h header (diff) | |
| download | linux-c8dd0f45874547e6e77bab03d71feb16c4cb98a8.tar.xz linux-c8dd0f45874547e6e77bab03d71feb16c4cb98a8.zip | |
function_graph: Do not expose the graph_time option when profiler is not configured
When the function profiler is not configured, the "graph_time" option is
meaningless, as the function profiler is the only thing that makes use of
it. Do not expose it if the profiler is not configured.
Link: http://lkml.kernel.org/r/20181123061133.GA195223@google.com
Reported-by: Joel Fernandes <joel@joelfernandes.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace.h')
| -rw-r--r-- | kernel/trace/trace.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index f67060a75f38..ab16eca76e59 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -862,7 +862,12 @@ static __always_inline bool ftrace_hash_empty(struct ftrace_hash *hash) #define TRACE_GRAPH_PRINT_FILL_MASK (0x3 << TRACE_GRAPH_PRINT_FILL_SHIFT) extern void ftrace_graph_sleep_time_control(bool enable); + +#ifdef CONFIG_FUNCTION_PROFILER extern void ftrace_graph_graph_time_control(bool enable); +#else +static inline void ftrace_graph_graph_time_control(bool enable) { } +#endif extern enum print_line_t print_graph_function_flags(struct trace_iterator *iter, u32 flags); |