Commit-ID: 0497d0a8201a38f0c95edc8a1fc0325f2f879ddb Gitweb: http://git.kernel.org/tip/0497d0a8201a38f0c95edc8a1fc0325f2f879ddb Author: Masami Hiramatsu <[email protected]> AuthorDate: Fri, 27 Feb 2015 13:50:31 +0900 Committer: Arnaldo Carvalho de Melo <[email protected]> CommitDate: Fri, 27 Feb 2015 15:52:40 -0300
perf buildid-cache: Show usage with incorrect params Show usage if no action is specified or unexpected parameter is given. In other words, be more user friendly. Signed-off-by: Masami Hiramatsu <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Hemant Kumar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/builtin-buildid-cache.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c index 04466c4..d47a0cd 100644 --- a/tools/perf/builtin-buildid-cache.c +++ b/tools/perf/builtin-buildid-cache.c @@ -343,6 +343,11 @@ int cmd_buildid_cache(int argc, const char **argv, argc = parse_options(argc, argv, buildid_cache_options, buildid_cache_usage, 0); + if (argc || (!add_name_list_str && !kcore_filename && + !remove_name_list_str && !purge_name_list_str && + !missing_filename && !update_name_list_str)) + usage_with_options(buildid_cache_usage, buildid_cache_options); + if (missing_filename) { file.path = missing_filename; file.force = force; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
