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Diffstat (limited to 'tools/bpf/bpftool/main.c')
-rw-r--r--tools/bpf/bpftool/main.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/tools/bpf/bpftool/main.c b/tools/bpf/bpftool/main.c
index 46bd716a9d86..bf4d7487552a 100644
--- a/tools/bpf/bpftool/main.c
+++ b/tools/bpf/bpftool/main.c
@@ -92,9 +92,16 @@ int cmd_select(const struct cmd *cmds, int argc, char **argv,
if (argc < 1 && cmds[0].func)
return cmds[0].func(argc, argv);
- for (i = 0; cmds[i].func; i++)
- if (is_prefix(*argv, cmds[i].cmd))
+ for (i = 0; cmds[i].cmd; i++) {
+ if (is_prefix(*argv, cmds[i].cmd)) {
+ if (!cmds[i].func) {
+ p_err("command '%s' is not supported in bootstrap mode",
+ cmds[i].cmd);
+ return -1;
+ }
return cmds[i].func(argc - 1, argv + 1);
+ }
+ }
help(argc - 1, argv + 1);