kernel/tools/testing/selftests/bpf/DENYLIST.s390x, branch linux-6.2.y

selftests/bpf: Test bpf_skb_adjust_room on CHECKSUM_PARTIAL

2022-12-21T23:56:27Z

When the bpf_skb_adjust_room() shrinks the skb such that its csum_start is invalid, the skb->ip_summed should be reset from CHECKSUM_PARTIAL to CHECKSUM_NONE. The commit 54c3f1a81421 ("bpf: pull before calling skb_postpull_rcsum()") fixed it. This patch adds a test to ensure the skb->ip_summed changed from CHECKSUM_PARTIAL to CHECKSUM_NONE after bpf_skb_adjust_room(). Signed-off-by: Martin KaFai Lau Signed-off-by: Daniel Borkmann Acked-by: Stanislav Fomichev Link: https://lore.kernel.org/bpf/20221221185653.1589961-1-martin.lau@linux.dev

selftests/bpf: add xfrm_info tests

2022-12-06T06:54:23Z

Test the xfrm_info kfunc helpers. The test setup creates three name spaces - NS0, NS1, NS2. XFRM tunnels are setup between NS0 and the two other NSs. The kfunc helpers are used to steer traffic from NS0 to the other NSs based on a userspace populated bpf global variable and validate that the return traffic had arrived from the desired NS. Signed-off-by: Eyal Birger Link: https://lore.kernel.org/r/20221203084659.1837829-5-eyal.birger@gmail.com Signed-off-by: Martin KaFai Lau

selftests/bpf: Add bench test to arm64 and s390x denylist

2022-11-30T23:07:30Z

BPF CI fails for arm64 and s390x each with the following result: [...] All error logs: serial_test_kprobe_multi_bench_attach:PASS:get_syms 0 nsec serial_test_kprobe_multi_bench_attach:PASS:kprobe_multi_empty__open_and_load 0 nsec libbpf: prog 'test_kprobe_empty': failed to attach: Operation not supported serial_test_kprobe_multi_bench_attach:FAIL:bpf_program__attach_kprobe_multi_opts unexpected error: -95 #92 kprobe_multi_bench_attach:FAIL [...] Add the test to the deny list. Fixes: 5b6c7e5c4434 ("selftests/bpf: Add attach bench test") Signed-off-by: Daniel Borkmann

selftests/bpf: Add tests for bpf_rcu_read_lock()

2022-11-24T20:54:34Z

Add a few positive/negative tests to test bpf_rcu_read_lock() and its corresponding verifier support. The new test will fail on s390x and aarch64, so an entry is added to each of their respective deny lists. Acked-by: Martin KaFai Lau Signed-off-by: Yonghong Song Link: https://lore.kernel.org/r/20221124053222.2374650-1-yhs@fb.com Signed-off-by: Alexei Starovoitov

selftests/bpf: Add cgroup kfunc / kptr selftests

2022-11-22T22:45:41Z

This patch adds a selftest suite to validate the cgroup kfuncs that were added in the prior patch. Signed-off-by: David Vernet Link: https://lore.kernel.org/r/20221122055458.173143-3-void@manifault.com Signed-off-by: Alexei Starovoitov

bpf: Add type cast unit tests

2022-11-20T23:45:48Z

Three tests are added. One is from John Fastabend ({1]) which tests tracing style access for xdp program from the kernel ctx. Another is a tc test to test both kernel ctx tracing style access and explicit non-ctx type cast. The third one is for negative tests including two tests, a tp_bpf test where the bpf_rdonly_cast() returns a untrusted ptr which cannot be used as helper argument, and a tracepoint test where the kernel ctx is a u64. Also added the test to DENYLIST.s390x since s390 does not currently support calling kernel functions in JIT mode. [1] https://lore.kernel.org/bpf/20221109215242.1279993-1-john.fastabend@gmail.com/ Signed-off-by: Yonghong Song Link: https://lore.kernel.org/r/20221120195442.3114844-1-yhs@fb.com Signed-off-by: Alexei Starovoitov

bpf/selftests: Add selftests for new task kfuncs

2022-11-20T17:16:21Z

A previous change added a series of kfuncs for storing struct task_struct objects as referenced kptrs. This patch adds a new task_kfunc test suite for validating their expected behavior. Signed-off-by: David Vernet Link: https://lore.kernel.org/r/20221120051004.3605026-5-void@manifault.com Signed-off-by: Alexei Starovoitov

selftests/bpf: Add BPF linked list API tests

2022-11-18T03:22:15Z

Include various tests covering the success and failure cases. Also, run the success cases at runtime to verify correctness of linked list manipulation routines, in addition to ensuring successful verification. Signed-off-by: Kumar Kartikeya Dwivedi Link: https://lore.kernel.org/r/20221118015614.2013203-23-memxor@gmail.com Signed-off-by: Alexei Starovoitov

selftests/bpf: Add test cgrp_local_storage to DENYLIST.s390x

2022-10-26T06:19:19Z

Test cgrp_local_storage have some programs utilizing trampoline. Arch s390x does not support trampoline so add the test to the corresponding DENYLIST file. Signed-off-by: Yonghong Song Link: https://lore.kernel.org/r/20221026042917.675685-1-yhs@fb.com Signed-off-by: Alexei Starovoitov

selftests/bpf: Alphabetize DENYLISTs

2022-10-12T05:55:28Z

The DENYLIST and DENYLIST.s390x files are used to specify testcases which should not be run on CI. Currently, testcases are appended to the end of these files as needed. This can make it a pain to resolve merge conflicts. This patch alphabetizes the DENYLIST files to ease this burden. Signed-off-by: David Vernet Acked-by: Daniel Müller Link: https://lore.kernel.org/r/20221011165255.774014-1-void@manifault.com Signed-off-by: Martin KaFai Lau