fw_core_remo...ress_handler(9)

🌸 fw_core_remove_address_handler(9) 🌸

okay bestie, we're in the Kernel API Manual, section 9, and today's main character is fw_core_remove_address_handler(9). yes she's a function. yes she's got a whole manual page. let's get into it 💅

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✨ NAME ✨

fw_core_remove_address_handler — unregister an address handler 🎀

like, she unregisters. an address handler. that's the whole vibe.

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🦋 SYNOPSIS 🦋

void fw_core_remove_address_handler (struct fw_address_handler *handler
);

no return value, she just does it and leaves. main character energy fr fr.

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🍓 ARGUMENTS 🍓

• handler — callback

and that's... genuinely it. that's the whole description the original gives us 😭 like okay mysterious queen, keep your secrets. it's a struct fw_address_handler * and the page just calls it a callback. we respect the minimalism. 🫶

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💖 DESCRIPTION 💖

so here's the tea: this one is to be called in process context. not interrupt. not whatever chaos zone you were in. process context. periodt.

and the actually important bit — the guarantee that makes her iconic:

when fw_core_remove_address_handler returns, handler->callback is guaranteed to not run on any CPU anymore.

read that again. any CPU. no stragglers, no "oops it fired one last time on core 7", none of that. when she comes back, it's done-done. 🔥 that's the whole reason you call her, and she delivers, no cap.

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👑 SEE ALSO 👑

kernel file ./drivers/firewire/core-transaction.c, plus the whole firewire squad:

• __fw_send_request(9)
• fw_run_transaction(9)
• fw_core_add_address_handler(9) ← her counterpart, the add one, they're a matched set 💜
• fw_send_response(9)
• fw_get_request_speed(9)
• fw_request_get_timestamp(9)
• fw_rcode_string(9)

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okay that's the page!! and before you go, the receipts ✨: this lives under ./drivers/firewire, and the date on it is October 2026. so she's from the future, she's from firewire, she's booked and busy. mwah 💋🎀🌈