dm_test_add_...en_mods_null(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dm_test_add_...en_mods_null(9) — the "nothing happens, and that's iconic" test

okay bestie, welcome to the Kernel API Manual entry for dm_test_add_...en_mods_null(9). yes the title is truncated, no i will not be fixing it, it's giving "name too long for the vibes" and honestly? relatable. anyway let's get into it 🎀

✨ NAME ✨

dm_test_add_modifier_noop_when_mods_null — literally just verifies that the helper is a no-op when the mods list is NULL. that's it. that's the whole job. queen of doing nothing on purpose 💅

🌸 SYNOPSIS 🌸

void dm_test_add_modifier_noop_when_mods_null (struct kunit *test );

return type is void, meaning it hands you nothing back, and that's fine, we're not here for a return value, we're here for the vibe check 🔥

🦋 ARGUMENTS 🦋

  • test — the KUnit test context. it's the little backstage pass that tells the test framework "hey, this is my test, these are my results, please don't lose them" 🫶

🧚 DESCRIPTION 🧚

so the whole point, fr fr: this test verifies whether add_modifier does nothing when the modifier list is NULL.

no list? no crash. no list? no surprise. no list? no nothing. it's a no-op check, and it's lowkey the most well-adjusted behavior a function can have. we love a helper that knows when to sit still and mind its business 😌✨

ngl this is the kind of test that sounds boring and then saves you at 3am when someone passes NULL in prod. respect the quiet ones 💖

👑 SEE ALSO 👑

📁 Kernel file

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

💜 the whole friend group (all 73 of them, yes really, i counted, we're doing this)

and that's the whole page bestie, you ate that reading, go hydrate 💅✨

sign-off time 🎀 this one's served up from ./drivers/gpu/drm/amd/display/..., dated October 2026, and tagged dm_test_add_...en_mods_null(9) — same truncated legend, same energy. periodt. 💖

📦 where this page comes from