dm_test_rep...l_vrr_params(9)

💅 dm_test_rep...l_vrr_params(9) — the Kernel API Manual, but make it cute ✨

okay so real talk, this is a page from the Kernel API Manual and it's about dm_test_replay_link_setup_null_vrr_params, which is a KUnit test for the amdgpu display driver. it's giving "tiny test, huge name" energy and honestly? we stan. 🎀

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✨ NAME ✨

dm_test_replay_link_setup_null_vrr_params — bestie, this one literally just verifies that NULL VRR params get rejected. that's the whole vibe check. 💅

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🌸 SYNOPSIS 🌸

void dm_test_replay_link_setup_null_vrr_params (struct kunit *test );

no cap, that's the entire signature. it returns nothing (void) and it takes exactly one thing. 🦋

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🫶 ARGUMENTS 🫶

• test — the KUnit test context. yeah, the usual guy. he's just here to hold the test state, iconic of him. 👑

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💖 DESCRIPTION 💖

okay so here's the tea: amdgpu_dm_link_setup_replay should return false when VRR parameters are not supplied. that's it. that's the test. it's checking that the function says "nope 🙈" when you hand it a NULL instead of actual VRR params.

lowkey the most well-behaved test in the friend group — it does one thing and it slays at it. ⭐

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🧚 SEE ALSO 🧚

Kernel file — the source lives right here, go say hi:

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

and now the whole squad, the full friend group, nobody left behind (periodt):

• dm_test_replay_set_caps_already_supported(9)
• dm_test_replay_set_caps_non_embedded_signal(9)
• dm_test_replay_set_caps_disallowed_by_panel(9)
• dm_test_replay_set_caps_link_not_supported(9)
• dm_test_replay_set_caps_missing_dmub_srv(9)
• dm_test_replay_set_caps_success(9)
• dm_test_replay_link_setup_null_stream(9)
• dm_test_replay_link_setup_null_link(9)
• dm_test_replay_link_setup_not_supported(9)
• dm_test_replay_link_setup_already_enabled(9)
• dm_test_replay_link_setup_success(9)
• dm_test_replay_set_event_null_stream(9)
• dm_test_replay_set_event_null_link(9)
• dm_test_replay_set_event_feature_disabled(9)
• dm_test_replay_set_event_missing_power_module(9)
• dm_test_replay_set_event_already_set(9)
• dm_test_replay_set_event_already_clear(9)

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and that's the page!! 🍓 mwah 💋

sign-off bestie style: this cutie came from ./drivers/gpu/drm/amd/display/... and it's dated October 2026, filed under dm_test_rep...l_vrr_params(9). screenshot it, frame it, put it on the fridge. 🌈👑