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J. Nick Koston
956977bd4b
The noise frame helper was calling state_action_() (447 bytes) on every read_packet() and write_protobuf_messages() call. In the DATA state (steady-state after handshake), this function falls through all handshake checks and returns OK — pure overhead on every encrypted packet. Add check_data_state_() inline helper that replaces the call with a single byte-load + branch instruction in the hot path. The handshake state machine continues to be driven by loop() as before. Also applies consistent state checking to the plaintext frame helper.
