llc_alloc_frame(9)

💖 llc_alloc_frame(9) — Kernel API Manual 💖

okay bestie, welcome to the llc_alloc_frame(9) page from the Kernel API Manual. this one is short and sweet, but it still ate. let's get into it 🫶

🌸 NAME 🌸

llc_alloc_frame — allocates sk_buff for frame ✨

✨ SYNOPSIS ✨

struct sk_buff * llc_alloc_frame (struct sock *sk , struct net_device
       *dev , u8 type , u32 data_size );

🎀 ARGUMENTS 🎀

• sk — socket to allocate frame to 🧚
• dev — network device this skb will be sent over 🌈
• type — pdu type to allocate 🍓
• data_size — data size to allocate 💜

💅 DESCRIPTION 💅

so what does it do? it allocates an sk_buff for frame and initializes sk_buff fields. that's the main character behavior right there. 👑

it returns the allocated skb or NULL when it's out of memory — no cap, that's the whole return story. 😭

🦋 SEE ALSO 🦋

bestie, if you wanna follow the lore, check the kernel file ./net/llc/llc_sap.c and this whole iconic friend group:

• llc_sap_rtn_pdu(9)
• llc_find_sap_trans(9)
• llc_exec_sap_trans_actions(9)
• llc_sap_next_state(9)
• llc_sap_state_process(9)
• llc_build_and_send_test_pkt(9)
• llc_build_and_send_xid_pkt(9)
• llc_sap_rcv(9)
• llc_lookup_dgram(9)
• llc_sap_mcast(9)

💅 signed off by the ./net/llc source tree, October 2026 — periodt, bestie. 🫶✨