ath9k_dfs_process_phyerr(9)

💖 ath9k_dfs_process_phyerr — process radar PHY error 💖

okay bestie, so this is a page from the Kernel API Manual, and the star of the show is ath9k_dfs_process_phyerr(9) 🩷 like yes, that whole mouthful. it's the function that handles radar pulses in the ath9k wifi driver, and honestly? it's giving air-traffic-controller energy. ✈️✨

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🌸 NAME 🌸

ath9k_dfs_process_phyerr — process radar PHY error 🚨

like, literally what it says on the tin. it processes a radar PHY error. no cap. 💅

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⭐ SYNOPSIS ⭐

void ath9k_dfs_process_phyerr (struct ath_softc *sc , void *data ,
       struct ath_rx_status *rs , u64 mactime );

that's the whole signature, bestie — returns void, so it does its thing and doesn't report back. it's a doer, not a talker. main character behaviour fr fr 👑

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🎀 ARGUMENTS 🎀

• sc — an ath_softc, aka the driver's whole softc situation for this device. it's the context baddie. 🫶
• data — the RX payload data. this is where the raw radar info lives, iykyk 🌈
• rs — the RX status after processing the descriptor. so like, post-descriptor-glow status. ✨
• mactime — the receive time, a u64. timestamps, iconic. ⏰

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🦋 DESCRIPTION 🦋

so here's the vibe: this function gets called whenever the HW DFS module detects a radar pulse and reports it as a PHY error. that's the trigger, periodt. 🎯

the radar information comes in as raw payload data, and the function validates it and filters it for false pulses — like, not every pulse is a real one, and this function is doing the vibe check. 💅 anything that passes all the tests gets forwarded to the DFS detector for pattern detection. so it's basically the bouncer at the club: check the ID, filter out the fakes, let the real ones through. 🚪✨

no guessing here bestie — that's genuinely all the page says. validate + filter + forward. the trifecta. 🔥

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👑 SEE ALSO 👑

• Kernel file ./drivers/net/wireless/ath/ath9k/dfs.h — go read the header if you wanna see the rest of the DFS squad 🧚

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that's the whole page, bestie, and it slayed. this little icon came from the folks over at ./drivers/net/wireless/ath/ath9k, dated October 2026, in the Kernel API Manual, filed under ath9k_dfs_process_phyerr(9). mwah, go touch some grass and then go read a header file 💜🎀🌸