dm_test_timi...ed_null_args(9)

💅 dm_test_timi...ed_null_args(9) — Kernel API Manual, section 9, bestie ✨

okay so picture this: you're in the kernel API manual, section 9, and the page you opened is literally called dm_test_timi...ed_null_args(9) (yes the name is truncated with ..., that's just how it's printed, don't come for me 🙈). It's a KUnit test page, it's very niche, it's very DRM/AMD, and it's lowkey iconic. Let's get into it 🎀

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✨ NAME ✨

dm_test_timing_unchanged_null_args — the test that checks whether NULL crtc states return false. That's the whole gig. She's a unit test, she does one thing, and she slays at it 💅

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🌸 SYNOPSIS 🌸

void dm_test_timing_unchanged_null_args (struct kunit *test );

That's it. That's the signature. Copy it exactly, character for character, no cap 🫶

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🦋 ARGUMENTS 🦋

• test — The KUnit test context. Yep, that's the one and only argument, and it's the standard KUnit test context you pass along so the framework can do its framework things ✨

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💖 SEE ALSO 💖

so the original page opens this section with Kernel file, and then hands you this path — keep it verbatim, it's the actual file fr fr:

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

and then, bestie, there is a whole friend group of sibling tests listed here. Every single one, in order, no skipping, because they are all part of the same vibe check 🧚:

• dm_test_timing_unchanged_identical_modes(9)
• dm_test_timing_unchanged_vrr_shift(9)
• dm_test_timing_unchanged_clock_changed(9)
• dm_test_set_freesync_fixed_config_60hz(9)
• dm_test_dc_timing_adjust_pending(9)
• dm_test_dc_timing_adjust_active_fixed(9)
• dm_test_dc_timing_adjust_vrr_toggle(9)
• dm_test_dc_timing_adjust_not_needed(9)
• dm_test_freesync_config_writeback(9)
• dm_test_freesync_config_not_capable(9)
• dm_test_freesync_config_out_of_range(9)
• dm_test_freesync_config_active_variable(9)
• dm_test_freesync_config_inactive(9)
• dm_test_freesync_config_active_fixed(9)
• dm_test_reset_freesync_config(9)

like, that's the whole freesync test squad and they all get a (9) after their name because they're all kernel API manual pages too. iykyk 💜

real talk though: this page does not tell you anything else about the return value, the behaviour, the edge cases, or what a "crtc state" even is beyond the NAME line. If you need more, go read the file above — the manpage is giving summary, not the full lore 😭

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🌈 and that's the page!! footer time, because we don't skip those either: this one's sourced from ./drivers/gpu/drm/amd/display/..., dated October 2026, and it belongs to dm_test_timi...ed_null_args(9). mwah, go read your kernel tests 💋👑⭐