netdev - [PATCH ethtool-next v2 3/6] separate FLAGS out in -h

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Message-Id: <20201006150425.2631432-4-kuba@kernel.org>
Date:   Tue,  6 Oct 2020 08:04:22 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     mkubecek@...e.cz
Cc:     netdev@...r.kernel.org, kernel-team@...com,
        Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH ethtool-next v2 3/6] separate FLAGS out in -h

Help output is quite crowded already with every command
being prefixed by --debug and --json options, and we're
about to add a third one.

Add an indirection.

Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
 ethtool.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/ethtool.c b/ethtool.c
index 2a7de97c51bb..403616bb7fa0 100644
--- a/ethtool.c
+++ b/ethtool.c
@@ -6015,10 +6015,10 @@ static int show_usage(struct cmd_context *ctx __maybe_unused)
 	fprintf(stdout, PACKAGE " version " VERSION "\n");
 	fprintf(stdout,
 		"Usage:\n"
-		"        ethtool [ --debug MASK ][ --json ] DEVNAME\t"
+		"        ethtool [ FLAGS ] DEVNAME\t"
 		"Display standard information about device\n");
 	for (i = 0; args[i].opts; i++) {
-		fputs("        ethtool [ --debug MASK ][ --json ] ", stdout);
+		fputs("        ethtool [ FLAGS ] ", stdout);
 		fprintf(stdout, "%s %s\t%s\n",
 			args[i].opts,
 			args[i].no_dev ? "\t" : "DEVNAME",
@@ -6027,7 +6027,10 @@ static int show_usage(struct cmd_context *ctx __maybe_unused)
 			fputs(args[i].xhelp, stdout);
 	}
 	nl_monitor_usage();
-	fprintf(stdout, "Not all options support JSON output\n");
+	fprintf(stdout, "\n");
+	fprintf(stdout, "FLAGS:\n");
+	fprintf(stdout, "	--debug MASK	turn on debugging messages\n");
+	fprintf(stdout, "	--json		enable JSON output format (not supported by all commands)\n");
 
 	return 0;
 }
-- 
2.26.2