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selftests/bpf: Update selftests to always provide "struct_ops" SEC 

Update struct_ops selftests to always specify "struct_ops" section
prefix. Libbpf will require a proper BPF program type set in the next
patch, so this prevents tests breaking.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20210914014733.2768-2-andrii@kernel.org
This commit is contained in:
Andrii Nakryiko 2021-09-13 18:47:30 -07:00 committed by Alexei Starovoitov
parent ca304b40c2
commit 53df63ccdc
1 changed files with 3 additions and 9 deletions
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12
tools/testing/selftests/bpf/progs/bpf_cubic.c
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@ -169,11 +169,7 @@ static __always_inline void bictcp_hystart_reset(struct sock *sk)
ca->sample_cnt = 0;
}
/* "struct_ops/" prefix is not a requirement
* It will be recognized as BPF_PROG_TYPE_STRUCT_OPS
* as long as it is used in one of the func ptr
* under SEC(".struct_ops").
*/
/* "struct_ops/" prefix is a requirement */
SEC("struct_ops/bpf_cubic_init")
void BPF_PROG(bpf_cubic_init, struct sock *sk)
{
@ -188,10 +184,8 @@ void BPF_PROG(bpf_cubic_init, struct sock *sk)
tcp_sk(sk)->snd_ssthresh = initial_ssthresh;
}
/* No prefix in SEC will also work.
* The remaining tcp-cubic functions have an easier way.
*/
SEC("no-sec-prefix-bictcp_cwnd_event")
/* "struct_ops" prefix is a requirement */
SEC("struct_ops/bpf_cubic_cwnd_event")
void BPF_PROG(bpf_cubic_cwnd_event, struct sock *sk, enum tcp_ca_event event)
{
if (event == CA_EVENT_TX_START) {