fourier — upstream submission drafts

Three submission drafts. Live in gitea/marfrit-packages under upstream-submissions/.

Index: fourier.

qt6-base-fourier → bugreports.qt.io + Gerrit

File: upstream-submissions/qt6-base-fourier/qt-bug-report.md
Targets: bugreports.qt.io issue + Qt Gerrit MR
Status: parked. Pure spec-correctness GLES3 fix, validated on G52 ohm + T860 fresnel, zero regressions visible.

Status (2026-04-30): MR 9157 closed. Reviewer showed the upstream-shape patch (0002) was technically wrong — sync_file is a fence snapshot at export, dmabuf-fd polling tracks later-added fences, Mutter explicitly moved off that on amdgpu. No semantic difference, no syscall-count win, kernel blocking would be a kernel bug to fix.
Currently shipped: kwin-fourier 1:6.6.4-3 with the 0001-skip-wait patch (the pragmatic bypass). Fixes ohm V4L2 stateless playback stall. Will become a no-op once vb2-dma-resv RFC lands.
0002 status: retained on disk for reference; not for re-submission.
File: upstream-submissions/kwin-fourier/kde-mr-body.md (post-mortem retained).

Status (2026-04-30): v1 sent 2026-04-29. Two reviewer replies received same day from Nicolas Dufresne and Christian König. Not a NACK; directed redirect with permission slip for the fourier use case. v2 sketch backlogged.
Cover Msg-Id: 20260429195306.239666-1-mfritsche@reauktion.de
Lore thread: https://lore.kernel.org/linux-media/20260429195306.239666-1-mfritsche@reauktion.de/
Source patches: kernel/vb2-dma-resv-rfc/
v1 send recipe: upstream-submissions/vb2-dma-resv/lkml-submission-notes.md
v2 sketch: upstream-submissions/vb2-dma-resv/v2-cover-letter-sketch.md
v2 prior-art reference: upstream-submissions/vb2-dma-resv/v2-prior-art-references.md
Full thread state: fourier:vb2_dma_resv_rfc — reviewer points, decisions taken, lore-watch caveat.

Bugzilla 1969297 (Mozilla): comment draft at upstream-submissions/firefox-fourier/bugzilla-1969297-comment.md. User emailed David Turner directly with the gist 2026-04-29.
Kwiboo/FFmpeg libudev-bypass patch: mailed to jonas@kwiboo.se (PRs disabled on the Kwiboo FFmpeg fork). Branch also at github.com/marfrit/FFmpeg/tree/libudev-bypass-fallback.