Empirical reachability check on linux-fresnel-fourier 7.0-1 source tree
at boltzmann:~/src/kernel-agent-bootstrap/build/marfrit-packages/arch/.../linux-7.0/.
rkvdec_hevc_assemble_hw_rps() is defined in rkvdec-hevc-common.c:411 and
called ONLY from rkvdec-vdpu381-hevc.c:609 (RK3576) and
rkvdec-vdpu383-hevc.c:620 (RK3588). RK3399's variant_ops bind to
rockchip,rk3399-vdec and route HEVC through the older standalone
rkvdec-hevc.c, which does NOT call rkvdec_hevc_assemble_hw_rps.
Bommarito's May 13 patch is real and load-bearing on RK3588/3576,
but inert on RK3399 / fresnel. Not iter10 vehicle for Bug 5.
Saved a kernel build/reboot cycle by Phase-0 reachability check.
Memory rule candidate: before applying any upstream patch to fresnel's
kernel, verify the patched path is reachable from rockchip,rk3399-vdec.
mainline rkvdec has diverging per-variant code (VDPU381/383 vs RK3399
legacy).
iter10 candidate pivots:
- α-10: audit rkvdec-hevc.c (RK3399 legacy) for analogous OOB gaps;
same KUnit/KASAN methodology Bommarito used. Route via kernel-agent
per user directive.
- α-12: stay on Bug 4 H.264 (PPS deep diff / OUTPUT bitstream).
User directive registered: "consult kernel-agent for kernel work."
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
