dm_test_mst_...lloc_success(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dm_test_mst_...lloc_success(9) 💅

okay bestie, welcome to the Kernel API Manual — this page is literally about dm_test_mst_update_mgr_dealloc_success, and it's giving “tiny KUnit test, big dealloc energy.” ✨

🌸 NAME 🌸

dm_test_mst_update_mgr_dealloc_success — Exercise the deallocation path.

✨ SYNOPSIS ✨

void dm_test_mst_update_mgr_dealloc_success (struct kunit *test );

🎀 ARGUMENTS 🎀

  • test — The KUnit test context. That's the whole vibe; it's the test's little world. 🫶

🦋 DESCRIPTION 🦋

Okay so this test builds a minimal MST topology-state fixture, no cap. The goal is to get the helper past the early NULL checks and through dm_helpers_construct_old_payload and drm_dp_remove_payload_part2 — both of which are pure list/slot math with no remote DPCD/AUX traffic. 🧚

After that, you gotta check the post-state like a responsible main character: MST_CLEAR_ALLOCATED_PAYLOAD must be set, MST_ALLOCATE_NEW_PAYLOAD cleared, and the payload's slot released. Periodt. 💅

🌈 SEE ALSO 🌈

the squad of related tests, all the (9) besties:

okay that's the page! signing off from ./drivers/gpu/drm/amd/display/..., dated October 2026 — catch u later, dm_test_mst_...lloc_success(9) 💖

📦 where this page comes from