Two production-code stubs in redbear-iwlwifi silently dropped or faked
data; both are now real implementations:
1. bridge/scheme.rs: Mac read with offset >= 6 used to return a
zero-filled packet silently. Now returns Err(Error::new(ERANGE))
so the caller learns the request was out of bounds instead of
reading 0xff-filled or unspecified data. (ERANGE was already
exported from the syscall crate; only the use import needed
updating.)
2. linux_port.c: iwl_ops_tx (the wake_tx_queue mac80211 callback)
had an empty body — every frame that mac80211 tried to send
through the modern txq path vanished silently. Now it maps the
802.11 access category (txq->ac, 0..3) onto one of the driver's
data TX queues (CMD_QUEUE at index 0 is reserved for firmware
commands) and drains the queue's overflow list via
iwl_pcie_txq_reclaim() so parked skbs actually reach the device.
Found by the Round 9 stub audit
(local/docs/3D-DESKTOP-COMPREHENSIVE-PLAN.md §10).
vasilito
c21c70912e