dm_test_read...ps_null_link(9)

📦 version 7.3.1, in nixpkgs unstable

Okay so picture this: you're deep in the DRM/AMD display test suite, right? And this one is a whole vibe — it's a KUnit test whose entire personality is "what happens when the link is NULL" 🙈. It's giving "early return" energy and honestly? Iconic. Let me walk you through the whole page, no cap 💖

✨ NAME ✨

dm_test_read_mccs_caps_null_link — literally just testing the early return when the link is NULL 🫶

🌸 SYNOPSIS 🌸

void dm_test_read_mccs_caps_null_link (struct kunit *test );

That's it. That's the whole signature. Short and slay 👑

🎀 ARGUMENTS 🎀

  • test — the KUnit test context, aka the little backpack this test carries its stuff around in 🎒✨

🦋 SEE ALSO 🦋

So there's a kernel file it lives in, and bestie, it's got so many siblings. Grab a snack 🍓:

Like, that's the whole friend group right there 😭 so many branches and payload tables and DSC enable paths — all of them neighbors of this little NULL-link test. iykyk 💅

Heads up, bestie: this page is literally only the NAME / SYNOPSIS / ARGUMENTS / SEE ALSO situation. No options, no env vars, no exit statuses to memorize — the whole flex here is "link is NULL, we bail early" 🧚

🌈 okay and one last thing so you have the receipts: this page lives at ./drivers/gpu/drm/amd/display/... and it's dated October 2026, and the header/footer both shout dm_test_read...ps_null_link(9) because apparently we're that girl. Now go forth and test responsibly, bestie — periodt 💜🎀

📦 where this page comes from