bpf: allow bpf_get_prandom_u32() to be used in tracing
bpf_get_prandom_u32() was initially introduced for socket filters and later requested numberous times to be added to tracing bpf programs for the same reason as in socket filters: to be able to randomly select incoming events. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -437,6 +437,8 @@ static const struct bpf_func_proto *tracing_func_proto(enum bpf_func_id func_id)
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return bpf_get_probe_write_proto();
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case BPF_FUNC_current_task_under_cgroup:
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return &bpf_current_task_under_cgroup_proto;
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case BPF_FUNC_get_prandom_u32:
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return &bpf_get_prandom_u32_proto;
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default:
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return NULL;
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}
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