Commit 1739c26d authored Oct 19, 2017 by Quentin Monnet Committed by David S. Miller Oct 22, 2017

tools: bpftool: fix return value when all eBPF programs have been shown



Change the program to have a more consistent return code. Specifically,
do not make bpftool return an error code simply because it reaches the
end of the list of the eBPF programs to show.

Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 9cbe1f58

tools/bpf/bpftool/prog.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -275,8 +275,10 @@ static int do_show(int argc, char **argv)
		while (true) {
		err = bpf_prog_get_next_id(id, &id);
		if (err) {
		if (errno == ENOENT)
		if (errno == ENOENT) {
		err = 0;
		break;
		}
		err("can't get next program: %s\n", strerror(errno));
		if (errno == EINVAL)
		err("kernel too old?\n");