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| author | Andrii Nakryiko <andrii@kernel.org> | 2024-03-26 09:21:50 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2024-03-28 18:31:40 -0700 |
| commit | 3124591f686115aca25d772c2ccb7b1e202c3197 (patch) | |
| tree | e761705a15312f4cf7423a40035c3e78bb8e4901 /kernel | |
| parent | b4ccf9158f5893dedb898687272fabfe80f58907 (diff) | |
| download | linux-stable-3124591f686115aca25d772c2ccb7b1e202c3197.tar.gz linux-stable-3124591f686115aca25d772c2ccb7b1e202c3197.tar.bz2 linux-stable-3124591f686115aca25d772c2ccb7b1e202c3197.zip | |
bpf: add bpf_modify_return_test_tp() kfunc triggering tracepoint
Add a simple bpf_modify_return_test_tp() kfunc, available to all program
types, that is useful for various testing and benchmarking scenarios, as
it allows to trigger most tracing BPF program types from BPF side,
allowing to do complex testing and benchmarking scenarios.
It is also attachable to for fmod_ret programs, making it a good and
simple way to trigger fmod_ret program under test/benchmark.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20240326162151.3981687-6-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/bpf/helpers.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c index f860adab3eb9..d9e7aca8ae9e 100644 --- a/kernel/bpf/helpers.c +++ b/kernel/bpf/helpers.c @@ -2625,6 +2625,7 @@ BTF_ID_FLAGS(func, bpf_dynptr_is_null) BTF_ID_FLAGS(func, bpf_dynptr_is_rdonly) BTF_ID_FLAGS(func, bpf_dynptr_size) BTF_ID_FLAGS(func, bpf_dynptr_clone) +BTF_ID_FLAGS(func, bpf_modify_return_test_tp) BTF_KFUNCS_END(common_btf_ids) static const struct btf_kfunc_id_set common_kfunc_set = { |