From: Arnaldo Carvalho de Melo <a...@redhat.com> More convenient thah having to recall what letter is about showing/listing/dumping the configuration, i.e. no arguments means -l/--list:
# perf config llvm.dump-obj=true trace.default_events=/home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.o trace.show_zeros=yes trace.show_duration=no # perf config -l llvm.dump-obj=true trace.default_events=/home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.o trace.show_zeros=yes trace.show_duration=no # perf config -h Usage: perf config [<file-option>] [options] [section.name[=value] ...] -l, --list show current config variables --system use system config file --user use user config file # Cc: Adrian Hunter <adrian.hun...@intel.com> Cc: Jiri Olsa <jo...@kernel.org> Cc: Luis Cláudio Gonçalves <lclau...@redhat.com> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Taeung Song <treeze.tae...@gmail.com> Cc: Wang Nan <wangn...@huawei.com> Link: https://lkml.kernel.org/n/tip-z2n63avz6tliqb5gmu4l1...@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/builtin-config.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/tools/perf/builtin-config.c b/tools/perf/builtin-config.c index 514f70f95b57..d76f831f94c7 100644 --- a/tools/perf/builtin-config.c +++ b/tools/perf/builtin-config.c @@ -196,6 +196,7 @@ int cmd_config(int argc, const char **argv) pr_err("Error: takes no arguments\n"); parse_options_usage(config_usage, config_options, "l", 1); } else { +do_action_list: if (show_config(set) < 0) { pr_err("Nothing configured, " "please check your %s \n", config_filename); @@ -204,10 +205,8 @@ int cmd_config(int argc, const char **argv) } break; default: - if (!argc) { - usage_with_options(config_usage, config_options); - break; - } + if (!argc) + goto do_action_list; for (i = 0; argv[i]; i++) { char *var, *value; -- 2.19.2