[v2] BPF packet scheduler updates part 2

[PATCH mptcp-next v2 04/13] Squash to "selftests/bpf: Add bpf_bkup scheduler"

Geliang Tang posted 13 patches 2 years, 6 months ago

Diff against v1
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Maintainers: Matthieu Baerts <matthieu.baerts@tessares.net>, Mat Martineau <martineau@kernel.org>, "David S. Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>, Andrii Nakryiko <andrii@kernel.org>, Mykola Lysenko <mykolal@fb.com>, Alexei Starovoitov <ast@kernel.org>, Daniel Borkmann <daniel@iogearbox.net>, Martin KaFai Lau <martin.lau@linux.dev>, Song Liu <song@kernel.org>, Yonghong Song <yhs@fb.com>, John Fastabend <john.fastabend@gmail.com>, KP Singh <kpsingh@kernel.org>, Stanislav Fomichev <sdf@google.com>, Hao Luo <haoluo@google.com>, Jiri Olsa <jolsa@kernel.org>, Shuah Khan <shuah@kernel.org>

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[PATCH mptcp-next v2 04/13] Squash to "selftests/bpf: Add bpf_bkup scheduler"

Posted by Geliang Tang 2 years, 6 months ago

Init nr to -1.

Signed-off-by: Geliang Tang <geliang.tang@suse.com>
---
 tools/testing/selftests/bpf/progs/mptcp_bpf_bkup.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/bpf/progs/mptcp_bpf_bkup.c b/tools/testing/selftests/bpf/progs/mptcp_bpf_bkup.c
index e5ba97390e17..21493a3affdb 100644
--- a/tools/testing/selftests/bpf/progs/mptcp_bpf_bkup.c
+++ b/tools/testing/selftests/bpf/progs/mptcp_bpf_bkup.c
@@ -25,7 +25,7 @@ void BPF_STRUCT_OPS(bpf_bkup_data_init, struct mptcp_sock *msk,
 int BPF_STRUCT_OPS(bpf_bkup_get_subflow, struct mptcp_sock *msk,
 		   const struct mptcp_sched_data *data)
 {
-	int nr = 0;
+	int nr = -1;
 
 	for (int i = 0; i < data->subflows && i < MPTCP_SUBFLOWS_MAX; i++) {
 		struct mptcp_subflow_context *subflow;
@@ -40,7 +40,8 @@ int BPF_STRUCT_OPS(bpf_bkup_get_subflow, struct mptcp_sock *msk,
 		}
 	}
 
-	mptcp_subflow_set_scheduled(mptcp_subflow_ctx_by_pos(data, nr), true);
+	if (nr != -1)
+		mptcp_subflow_set_scheduled(mptcp_subflow_ctx_by_pos(data, nr), true);
 	return 0;
 }
 
-- 
2.35.3