scmi_xfer_lookup_unlocked(9)

💅 scmi_xfer_lookup_unlocked(9) — Kernel API Manual

okay bestie, welcome to the kernel API manual for scmi_xfer_lookup_unlocked(9), and yes you're gonna slay this one 🫶

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✨ NAME ✨

scmi_xfer_lookup_unlocked — a little helper that looks up an xfer_id. that's it. that's the whole job. icon behavior honestly 👑

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🌸 SYNOPSIS 🌸

struct scmi_xfer * scmi_xfer_lookup_unlocked (struct scmi_xfers_info
*minfo , u16 xfer_id );

like, you hand it a message-management struct and an id, and it goes and finds your transfer. main character function fr fr ⭐

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🎀 ARGUMENTS 🎀

• minfo — pointer to the Tx/Rx Message management info, based on channel type. it's giving "which channel are we even on" energy, iykyk 💫
• xfer_id — the Token ID you wanna look up in pending_xfers. that's the thing it's searching for, no cap 🔍

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🦋 DESCRIPTION 🦋

Refcounting is untouched. 💀

like, it does not touch the refcount, bestie. not even a little. it just looks the thing up and minds its business. we love a function that stays in its lane 🌈

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💜 CONTEXT 💜

assumes it's being called with xfer_lock already acquired 🔒

so like, lock first, then call. that's the vibe check and you must pass it, okay? 🫶

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🔥 RETURN 🔥

a valid xfer on success, or an error otherwise. that's the whole deal — you either get your transfer or you get told no 🙈

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👑 SEE ALSO 👑

go check out the kernel file ./drivers/firmware/arm_scmi/driver.c — it's the mothership, and these are all its friends:

• struct scmi_xfers_info(9)
• struct scmi_protocol_instance(9)
• struct scmi_info(9)
• scmi_create_protocol_devices(9)
• scmi_xfer_token_set(9)
• scmi_xfer_token_clear(9)
• scmi_xfer_inflight_register_unlocked(9)
• scmi_xfer_inflight_register(9)
• scmi_xfer_raw_inflight_register(9)
• scmi_xfer_pending_set(9)
• scmi_xfer_get(9)
• scmi_xfer_raw_get(9)
• scmi_xfer_raw_channel_get(9)
• __scmi_xfer_put(9)
• scmi_xfer_raw_put(9)
• scmi_bad_message_trace(9)
• scmi_msg_response_validate(9)
• scmi_xfer_state_update(9)
• scmi_xfer_command_acquire(9)
• scmi_rx_callback(9)
• xfer_put(9)
• scmi_wait_for_message_response(9)
• scmi_xfer_raw_wait_for_message_response(9)
• do_xfer(9)
• do_xfer_with_response(9)
• xfer_get_init(9)
• version_get(9)
• scmi_set_protocol_priv(9)
• scmi_get_protocol_priv(9)
• scmi_common_extended_name_get(9)
• scmi_common_get_max_msg_size(9)
• scmi_protocol_msg_check(9)
• struct scmi_iterator(9)
• scmi_revision_area_get(9)
• scmi_protocol_version_negotiate(9)
• scmi_protocol_version_initialize(9)
• scmi_alloc_init_protocol_instance(9)
• scmi_get_protocol_instance(9)
• scmi_protocol_acquire(9)
• scmi_protocol_release(9)
• scmi_devm_protocol_get(9)
• scmi_devm_protocol_acquire(9)
• scmi_devm_protocol_put(9)
• scmi_is_transport_atomic(9)
• scmi_handle_get(9)
• scmi_handle_put(9)
• scmi_channels_setup(9)

that's a lot of reading, but you're built different, so 💅

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🌸 that's the whole page, bestie — this one came from ./drivers/firmware/arm_scmi, dated October 2026, and it's literally called scmi_xfer_lookup_unlocked(9) in case you forgot already 😭 go forth and look up those xfers, mwah 🎀