llc_util_ns_...de_rx_window(9)

💅 llc_util_ns_...de_rx_window(9) ✨

okay so bestie, we're in the Kernel API Manual today and this page is literally just one tiny little vibe-check function. it's giving "small but mighty" fr fr 🎀

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🌸 NAME 🌸

llc_util_ns_inside_rx_window — check if sequence number is in rx window 💖

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🦋 SYNOPSIS 🦋

u16 llc_util_ns_inside_rx_window (u8 ns , u8 vr , u8 rw );

like, that's it. three little u8s in, one u16 out. no cap. ✨

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🎀 ARGUMENTS 🎀

• ns — the sequence number of the received pdu 🍓 like, "which one did we just get?"
• vr — the sequence number which the receiver expects to receive 👑 this is the main character here honestly
• rw — the receive window size of the receiver 🌈 how wide we're willing to open the door

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💜 DESCRIPTION 💜

Checks if the sequence number of the received PDU is in range of the receive window 💅

Returns 0 for success, 1 otherwise. that's the whole plot. honestly? iconic. 🫶

ngl this one's a tiny helper — but every great LLC connection is built on tiny helpers, iykyk 😭🔥

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🌟 SEE ALSO 🌟

• Kernel file ./net/llc/llc_c_ev.c
• llc_util_nr_inside_tx_window(9)
• llc_conn_ev_qlfy_last_frame_eq_1(9)
• llc_conn_ev_qlfy_last_frame_eq_0(9)

go read those next bestie, they're the sibling energy to this one 🧚✨

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and that's a wrap! 🎀 this little page lives in ./net/llc, dated October 2026 — slay, go forth and window-check responsibly 💖👑⭐