dm_test_hdcp...emoves_sysfs(9)

📦 version 7.3.1, in nixpkgs unstable

💅 NAME 💅

Okay bestie, so you've stumbled into the Kernel API Manual (section 9, the kernel-functions one, iykyk) and the page you're on is dm_test_hdcp...emoves_sysfs(9) — which is just the truncated cute lil nickname for the actual star of the show:

dm_test_hdcp_destroy_frees_and_removes_sysfs — the full teardown path. It's giving "everything must go" energy, no cap.

✨ SYNOPSIS ✨

void dm_test_hdcp_destroy_frees_and_removes_sysfs (struct kunit *test );

🎀 ARGUMENTS 🎀

  • test — the KUnit test context. That's it. That's the whole entire vibe. 🫶

💖 DESCRIPTION 💖

okay so here's the tea, bestie: hdcp_destroy has a lot on its plate and it does not get to skip any of it. It must:

  • cancel every link's delayed works ⏰
  • remove the SRM sysfs bin file 🗂️
  • free srm, srm_temp and the workqueue itself 🧹

So the workqueue and the SRM buffers use kzalloc — not kunit-managed — specifically because hdcp_destroy frees them. And then KASAN/kmemleak validate there is no leak or use-after-free. Literally the vibe check at the end of the party, making sure nobody left their stuff behind. 💀✨

🦋 SEE ALSO 🦋

Bestie, this list is long, but every single one of these is iconic in its own right:

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

ngl bestie, that's a lot of cross-references, but you're a main character and you can handle it 💪🌈

~ fin ~ and for the sign-off: this whole aesthetic was served up from the source file path ./drivers/gpu/drm/amd/display/... (yes, that's literally how the footer truncates it, don't come for me 🙈) with a date stamp of October 2026, on the dm_test_hdcp...emoves_sysfs(9) page. Slay, periodt. 💜🎀✨

📦 where this page comes from