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@@ -1777,6 +1777,22 @@ static const struct bpf_func_proto bpf_get_hash_recalc_proto = {
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.arg1_type = ARG_PTR_TO_CTX,
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};
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+BPF_CALL_1(bpf_set_hash_invalid, struct sk_buff *, skb)
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+{
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+ /* After all direct packet write, this can be used once for
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+ * triggering a lazy recalc on next skb_get_hash() invocation.
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+ */
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+ skb_clear_hash(skb);
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+ return 0;
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+}
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+
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+static const struct bpf_func_proto bpf_set_hash_invalid_proto = {
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+ .func = bpf_set_hash_invalid,
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+ .gpl_only = false,
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+ .ret_type = RET_INTEGER,
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+ .arg1_type = ARG_PTR_TO_CTX,
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+};
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+
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BPF_CALL_3(bpf_skb_vlan_push, struct sk_buff *, skb, __be16, vlan_proto,
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u16, vlan_tci)
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{
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@@ -2534,6 +2550,8 @@ tc_cls_act_func_proto(enum bpf_func_id func_id)
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return &bpf_get_route_realm_proto;
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case BPF_FUNC_get_hash_recalc:
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return &bpf_get_hash_recalc_proto;
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+ case BPF_FUNC_set_hash_invalid:
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+ return &bpf_set_hash_invalid_proto;
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case BPF_FUNC_perf_event_output:
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return &bpf_skb_event_output_proto;
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case BPF_FUNC_get_smp_processor_id:
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