Patch I closes besser#1 — the wsm_generic_confirm 0x0007 dmesg storm.
One-line guard in bes2600_hw_scan() refuses the 5 GHz iteration of
mac80211's per-band hw_scan loop with -EOPNOTSUPP, so the firmware
never sees the scan request that would be rejected with status 2 →
-EINVAL cascade. Phase 7 verified 2026-05-18 on ohm running pkgrel=2:
Pattern A 14.3/h → 0/h over 30-min window, no WARN/BUG, single-band
2.4 GHz scans still return BSSes cleanly.
Two flavors imported (scan-filter-5ghz and scan-filter-5ghz-danctnix)
matching the convention of other bes2600 series — the code path
doesn't touch timer APIs so the two are byte-identical for now;
flavor separation is kept to preserve consistency in ohm.yaml.
The arm64 scs-arm-neon-build-fix series is a build-environment
workaround: GCC 15.2.1 strictly validates that -fsanitize=shadow-
call-stack requires -ffixed-x18, and arm_neon.h's #pragma target/
push/pop blocks lose x18 fixing inside the wrapped section. The
Makefile tweak re-adds -ffixed-x18 explicitly for xor-neon.o. It's
a no-op when SCS is off (current pkgrel=2 ohm config) and unblocks
SCS=y once GCC upstream is fixed.
ohm.yaml gains a CONFIG_SHADOW_CALL_STACK=n config override with a
pointer to besser#20 (the re-enable tracking issue) so future
manifest-driven kconfig generation honors the workaround without
silently dropping it.
Source-of-truth commit for Patch I:
marfrit/bes2600-dkms branch bes2600/scan-filter-5ghz sha 093a503
PKGBUILD-side (already deployed to ohm via pkgrel=2):
marfrit/besser branch claude-noether-14 sha ae175f9
Refs: besser#1 (closed), besser#20, kernel-agent#5
test0r
4c80458d1f