linux-kernel - [PATCH bpf-next v2 1/2] bpftool: Add HELP_SPEC

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Message-ID: <20250917034732.1185429-1-chen.dylane@linux.dev>
Date: Wed, 17 Sep 2025 11:47:31 +0800
From: Tao Chen <chen.dylane@...ux.dev>
To: qmo@...nel.org,
	ast@...nel.org,
	daniel@...earbox.net,
	andrii@...nel.org,
	martin.lau@...ux.dev,
	eddyz87@...il.com,
	song@...nel.org,
	yonghong.song@...ux.dev,
	john.fastabend@...il.com,
	kpsingh@...nel.org,
	sdf@...ichev.me,
	haoluo@...gle.com,
	jolsa@...nel.org,
	chen.dylane@...ux.dev
Cc: bpf@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH bpf-next v2 1/2] bpftool: Add HELP_SPEC_OPTIONS in token.c

$ ./bpftool token help

Usage: bpftool token { show | list }
       bpftool token help
       OPTIONS := { {-j|--json} [{-p|--pretty}] | {-d|--debug} }

Fixes: 2d812311c2b2 ("bpftool: Add bpf_token show")
Acked-by: Quentin Monnet <qmo@...nel.org>
Signed-off-by: Tao Chen <chen.dylane@...ux.dev>
---
 tools/bpf/bpftool/token.c | 1 +
 1 file changed, 1 insertion(+)

Change list:
 v1 -> v2:
  - strdup(mntent->mnt_opts) once per cmd/map/prog and
    remove another strdrup/free in print_items_per_line
    in patch2.(Alexei)
  v1: https://lore.kernel.org/bpf/20250916054111.1151487-1-chen.dylane@linux.dev

diff --git a/tools/bpf/bpftool/token.c b/tools/bpf/bpftool/token.c
index 6312e662a12..82b829e44c8 100644
--- a/tools/bpf/bpftool/token.c
+++ b/tools/bpf/bpftool/token.c
@@ -206,6 +206,7 @@ static int do_help(int argc, char **argv)
 	fprintf(stderr,
 		"Usage: %1$s %2$s { show | list }\n"
 		"       %1$s %2$s help\n"
+		"       " HELP_SPEC_OPTIONS " }\n"
 		"\n"
 		"",
 		bin_name, argv[-2]);
-- 
2.48.1