dm_test_even...en_unchanged(9)

📦 version 7.3.1, in nixpkgs unstable

👑 NAME 👑 (dm_test_event_property_validate_no_update_when_unchanged)

okay so bestie, welcome to dm_test_even...en_unchanged(9) — that's the truncated glow-up name, the full thing is dm_test_event_property_validate_no_update_when_unchanged(9), and this whole page lives in the Kernel API Manual, section 9. iykyk 💅

dm_test_event_property_validate_no_update_when_unchanged — literally "no change, no work" ✨

🦋 SYNOPSIS 🦋

void dm_test_event_property_validate_no_update_when_unchanged (struct
kunit *test );

like. that's it. that's the whole signature. she's serving void-returning, one-argument realness 🎀

🌸 ARGUMENTS 🌸

  • test — the KUnit test context 🧚 that's the whole vibe, it just wants its test context and it's happy

💖 DESCRIPTION 💖

so picture this: you've got a connector, right, and it's connected (main character energy), and it's got state, and that state's stored encryption_status is already HDCP_OFF — which, not to be dramatic, matches the query result 🔥

and when all of that is true? event_property_validate must not reschedule property_update_work. periodt. no change, no work. she's not doing overtime for a property that already said what it meant 💅

like the whole point of this test is proving that if nothing changed, nothing gets rescheduled. icon behaviour honestly 🫶

⭐ SEE ALSO ⭐

okay this list is long long, but every single one of these siblings deserves their shoutout, no cap. also the kernel file they all live in 👇

Kernel file: ./drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_hdcp_test.c

💀 real talk: that SEE ALSO list is giving "the whole friend group showed up to the party" and honestly? we love a supportive test suite 🥹

and that's the page, bestie!! 🎀 sourced from the kernel file ./drivers/gpu/drm/amd/display/..., stamped October 2026 — like, future vibes but the docs are already iconic. catch you on the next (9) 🌈💜

📦 where this page comes from