dm_test_hand...no_left_work(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dm_test_hand...no_left_work(9) — the Kernel API Manual, but make it make sense ✨

okay so bestie, welcome to the Kernel API Manual 🫶 and today's main character is dm_test_hand...no_left_work(9) — yes the title is literally truncated with dots in the man page name, that's not me being lazy, that's just how it's filed, iykyk 💀

🌸 NAME 🌸

dm_test_handle_hpd_rx_irq_no_left_work — it's the test for the HPDRX early-out, aka the "no left work" case, periodt 💅

✨ SYNOPSIS ✨

void dm_test_handle_hpd_rx_irq_no_left_work (struct kunit *test );

like, that's the whole signature. one argument. that's her. 👑

🎀 ARGUMENTS 🎀

  • test — the KUnit test context 💖 that's the little test-world she lives in, ok?

🦋 DESCRIPTION 🦋

so here's the vibe check: when dc_link_handle_hpd_rx_irq reports that there's no left-over work, the handler literally jumps to out and returns without scheduling any offload work. no queueing, no offload, nothing. she said "nope, we're done here" and left the group chat 😭

like — that's the whole test. it proves the early-out actually early-outs. iconic behaviour, fr fr 🧚

ngl this is the "no notes, she ate" branch. nothing gets scheduled, and that is exactly the point 💀✨

👑 SEE ALSO 👑

🍓 the kernel file

./drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_irq_test.c

🌈 her whole friend group (yes, all of them, I would never do them dirty like that)

like yes that's a lot of names but I was NOT about to leave a single one out, that would be so rude 😤 every single one of these is a real one, go read them, they're all under ./drivers/gpu/drm/amd/display/... 💜

💫 tiny sign-off 💫

this page came from ./drivers/gpu/drm/amd/display/... and it's dated October 2026 — so she's from the future, she's mysterious, she's booked and busy 🦋💅 slay, go run your KUnit tests, ily, bye 🎀✨

📦 where this page comes from