llc_backlog_rcv(9)

💖 llc_backlog_rcv(9) 💖

okay so this is the llc_backlog_rcv(9) page from the Kernel API Manual, and we are literally gonna make it make sense. bestie, it's giving kernel networking, and you're the main character. 🎀

---

🌸 NAME 🌸

llc_backlog_rcv — the function that processes rx frames and expired timers. no cap, that's the whole job. ✨

---

🦋 SYNOPSIS 🦋

int llc_backlog_rcv (struct sock *sk , struct sk_buff *skb );

---

🍓 ARGUMENTS 🍓

• sk — the LLC sock (p8022 connection), aka the socket in question 💅
• skb — the queued rx frame or event, just sitting there waiting for its moment 🫶

---

🔥 DESCRIPTION 🔥

so this function processes frames that have been received and timers that have expired during sending an I pdu (refer to data_req_handler, iykyk). the frames get queued by the llc_rcv function (llc_mac.c), and the timers get queued by timer callback functions (llc_c_ac.c). it's all connected, bestie. 💖

---

👑 SEE ALSO 👑

the kernel file is ./net/llc/llc_conn.c, and these are the besties you should also check out:

• llc_conn_state_process(9)
• llc_conn_rtn_pdu(9)
• llc_conn_resend_i_pdu_as_cmd(9)
• llc_conn_resend_i_pdu_as_rsp(9)
• llc_conn_remove_acked_pdus(9)
• llc_conn_send_pdus(9)
• llc_conn_service(9)
• llc_qualify_conn_ev(9)
• llc_exec_conn_trans_actions(9)
• __llc_lookup_established(9)
• llc_lookup_listener(9)
• llc_data_accept_state(9)
• llc_find_next_offset(9)
• llc_build_offset_table(9)
• llc_find_offset(9)
• llc_sap_add_socket(9)
• llc_sap_remove_socket(9)
• llc_conn_rcv(9)
• llc_sk_init(9)
• llc_sk_alloc(9)
• llc_sk_free(9)
• llc_sk_reset(9)

---

that's the whole vibe, bestie — sourced from ./net/llc and dated October 2026. now go process those frames! 💅✨🎀