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selftests/bpf: rename test_tc_edt.bpf.c section to expose program type

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The test_tc_edt BPF program uses a custom section name, which works fine
when manually loading it with tc, but prevents it from being loaded with
libbpf.

Update the program section name to "tc" to be able to manipulate it with
a libbpf-based C test.

Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com>
Link: https://lore.kernel.org/r/20251128-tc_edt-v2-1-26db48373e73@bootlin.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Alexis Lothoré (eBPF Foundation) 2025-11-28 23:27:18 +01:00 committed by Alexei Starovoitov
parent 34235a3544
commit 4b4833acc6
2 changed files with 3 additions and 2 deletions
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3
tools/testing/selftests/bpf/progs/test_tc_edt.c
View File

@ -99,7 +99,8 @@ static inline int handle_ipv4(struct __sk_buff *skb)
return TC_ACT_OK;
}
SEC("cls_test") int tc_prog(struct __sk_buff *skb)
SEC("tc")
int tc_prog(struct __sk_buff *skb)
{
if (skb->protocol == bpf_htons(ETH_P_IP))
return handle_ipv4(skb);

2
tools/testing/selftests/bpf/test_tc_edt.sh
View File

@ -55,7 +55,7 @@ ip -netns ${NS_DST} route add ${IP_SRC}/32 dev veth_dst
ip netns exec ${NS_SRC} tc qdisc add dev veth_src root fq
ip netns exec ${NS_SRC} tc qdisc add dev veth_src clsact
ip netns exec ${NS_SRC} tc filter add dev veth_src egress \
bpf da obj ${BPF_FILE} sec cls_test
bpf da obj ${BPF_FILE} sec tc
# start the listener