selftests/bpf: Add test for zero offset or non-zero offset pointers as KF_ACQUIRE kfuncs argument

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This patch adds test cases for zero offset (implicit cast) or non-zero
offset pointer as KF_ACQUIRE kfuncs argument. Currently KF_ACQUIRE
kfuncs should support passing in pointers like &sk->sk_write_queue
(non-zero offset) or &sk->__sk_common (zero offset) and not be rejected
by the verifier.

Signed-off-by: Juntong Deng <juntong.deng@outlook.com>
Link: https://lore.kernel.org/r/AM6PR03MB5848CB6F0D4D9068669A905B99952@AM6PR03MB5848.eurprd03.prod.outlook.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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This commit is contained in:

Juntong Deng 2024-08-28 20:51:32 +01:00 • committed by Alexei Starovoitov

parent f633919d13

commit 6db59c4935

4 changed files with 58 additions and 0 deletions

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17

tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c

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4

tools/testing/selftests/bpf/bpf_testmod/bpf_testmod_kfunc.h

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4

tools/testing/selftests/bpf/prog_tests/nested_trust.c

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33

tools/testing/selftests/bpf/progs/nested_acquire.c

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