The -q/--quiet option is to suppress any message. Sometimes users just want to run the command and it can be used for that case.
Suggested-by: Arnaldo Carvalho de Melo <[email protected]> Signed-off-by: Namhyung Kim <[email protected]> --- tools/perf/Documentation/perf-ftrace.txt | 4 ++++ tools/perf/builtin-ftrace.c | 7 +++++-- 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/tools/perf/Documentation/perf-ftrace.txt b/tools/perf/Documentation/perf-ftrace.txt index 6e6a8b22c859..361836114268 100644 --- a/tools/perf/Documentation/perf-ftrace.txt +++ b/tools/perf/Documentation/perf-ftrace.txt @@ -30,6 +30,10 @@ OPTIONS --verbose=:: Verbosity level. +-q:: +--quiet:: + Do not show any message. + -p:: --pid=:: Trace on existing process id (comma separated list). diff --git a/tools/perf/builtin-ftrace.c b/tools/perf/builtin-ftrace.c index 6087295f8827..2d8e8924cfe6 100644 --- a/tools/perf/builtin-ftrace.c +++ b/tools/perf/builtin-ftrace.c @@ -321,8 +321,8 @@ int cmd_ftrace(int argc, const char **argv, const char *prefix __maybe_unused) "tracer to use: function_graph(default) or function"), OPT_STRING('p', "pid", &ftrace.target.pid, "pid", "trace on existing process id"), - OPT_INCR('v', "verbose", &verbose, - "be more verbose"), + OPT_INCR('v', "verbose", &verbose, "be more verbose"), + OPT_BOOLEAN('q', "quiet", &quiet, "do not show any message"), OPT_BOOLEAN('a', "all-cpus", &ftrace.target.system_wide, "system-wide collection from all CPUs"), OPT_STRING('C', "cpu", &ftrace.target.cpu_list, "cpu", @@ -339,6 +339,9 @@ int cmd_ftrace(int argc, const char **argv, const char *prefix __maybe_unused) if (!argc && target__none(&ftrace.target)) usage_with_options(ftrace_usage, ftrace_options); + if (quiet) + perf_quiet_option(); + ret = target__validate(&ftrace.target); if (ret) { char errbuf[512]; -- 2.11.0
