ap_cancel_message(9)

👑 ap_cancel_message(9) 👑

okay so bestie, this one comes straight from the Kernel API Manual, and it's all about cancelling a crypto request. short page, but the deets are deets, so lock in. 💅

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💖 NAME 💖

• ap_cancel_message — cancel a crypto request. periodt.

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✨ SYNOPSIS ✨

void ap_cancel_message (struct ap_queue *aq , struct ap_message *ap_msg
);

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🎀 ARGUMENTS 🎀

• aq — the AP device that has the message queued. like, the device holding your message, bestie.
• ap_msg — the message that is to be removed. yep, this is the one getting cancelled.

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🦋 DESCRIPTION 🦋

Cancel a crypto request. this is done by removing the request from the device pending or request queue. 🫶

note that the request stays on the AP queue. lowkey important.

when it finishes, the message reply will be discarded because the psmid can't be found. and that's the whole vibe. 💀

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🌈 SEE ALSO 🌈

the kernel file ./drivers/s390/crypto/ap_queue.c has the lore. check out these icons too:

• ap_queue_enable_irq(9)
• __ap_send(9)
• ap_sm_recv(9)
• ap_sm_read(9)
• ap_sm_write(9)
• ap_sm_read_write(9)
• ap_sm_reset(9)
• ap_sm_reset_wait(9)
• ap_sm_setirq_wait(9)
• ap_sm_assoc_wait(9)
• ap_queue_message(9)
• ap_queue_usable(9)
• __ap_flush_queue(9)

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xoxo, your kernel bestie 💖 — ap_cancel_message(9) is brought to you by ./drivers/s390/crypto, dated October 2026. mwah 💋