dm_test_det..._without_aux(9)

📦 version 7.3.1, in nixpkgs unstable

💅 NAME 💅

okay bestie, this page is dm_test_detect_mst_branch_without_aux, from the Kernel API Manual, and the title is a whole mouthful but we move 💅. The NAME tea is literally Test an MST branch with no aux is skipped — that's the vibe, no cap.

✨ SYNOPSIS ✨

void dm_test_detect_mst_branch_without_aux (struct kunit *test );

That's the whole signature, bestie — void, one argument, immaculate minimalism 🫶.

🫶 ARGUMENTS 🫶

  • test — the KUnit test context, aka the little test-world passport for this run 🎀

🌸 DESCRIPTION 🌸

so the condition short-circuits on a NULL mst_mgr.aux — like, it hits that null and immediately bails — so the real drm_dp_mst_topology_mgr_set_mst path is literally never reached. It's giving “not today, topology manager” 💀. That's the whole behavior described here, fr fr.

🎀 SEE ALSO 🎀

okay the SEE ALSO section is a full-on group chat roll call, and we are not skipping a single name. Kernel file first, then literally every reference:

okay that's the whole page, bestie 💖 the source/version is <pink>./drivers/gpu/drm/amd/display/...</pink> and the date is <purple>October 2026</purple>. mwah 🫶✨

📦 where this page comes from