dm_test_link...inks_is_noop(9)

📦 version 7.3.1, in nixpkgs unstable

okay so bestie, we're in the Kernel API Manual, section 9 — yes, the kernel one, we're literally in the drivers, it's giving big-brain energy 🔥

✨ NAME ✨

dm_test_link_lock_zero_links_is_noop — zero max_link touches no mutexes. that's it. that's the whole vibe. no locks, no drama, no cap 💅

🌸 SYNOPSIS 🌸

void dm_test_link_lock_zero_links_is_noop (struct kunit *test );

🦋 ARGUMENTS 🦋

  • test — the KUnit test context. that's your little backstage pass for this test, bestie 🎟️

💖 DESCRIPTION 💖

okay so this is the part where it gets good 👀

when max_link is zero, link_lock must not touch any mutex — not a single one, not even a little — and it just simply returns, leaving the (single) entry's mutex unlocked. periodt. 💀

like, the whole point of the test is proving that with zero links there's nothing to lock, so the function bails and the one entry it does have stays unlocked. no mutex, no touchy 🙈

🔥 SEE ALSO 🔥

📁 Kernel file 📁

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

👑 the whole friend group (all of these, fr fr) 👑

ngl bestie, that's a lot of tests — but every single one of them is part of the squad and we're not leaving anyone out 💜

kisses, this page came from the ./drivers/gpu/drm/amd/display/... source and the version tag says October 2026 — so yeah, it's a whole era. stay slay, go touch grass (not mutexes) 🧚✨

📦 where this page comes from