September 2025 monthly summary for qualcomm-linux/kernel-topics focused on stability, robustness, and security enhancements in the Realtek wireless driver. Delivered three high-impact changes addressing parsing reliability, header variability, and cryptographic compatibility to improve real-world performance and reduce debugging time.

July 2025 — geerlingguy/linux (WiFi RTW89) delivered substantial business value through MCC-based coordination improvements and driver reliability enhancements. Key features delivered include MCC Coordination and Performance Enhancements for RTW89, with per-interface PD level control, dynamic suspend/resume during scans and connections, extended GO NoA and TBTT handling, and more robust go-role management to stabilize MCC deployments. Additional work focused on driver reliability and firmware communication: extended hardware scan for WiFi 7 for concurrency, improved LPS H2C completion checks, SER L2 type defaults, and TX wake notifications to enhance power management and reduce fault conditions. Together, these changes improve data integrity, reduce channel-switch latency, and increase power efficiency in high-concurrency scenarios, delivering measurable improvements in throughput stability and battery life for devices relying on RTW89-based WiFi.

In November 2024, focused on firmware maintenance for NVIDIA/linux-firmware to address RTW89 8852A nulldata transmission issues during wireless scans. Delivered a firmware update to v0.13.36.2 that fixes the failure to transmit normal nulldata packets during scans, improving reliability of wireless network operations. The work included a single commit: 'rtw89: 8852a: update fw to v0.13.36.2' (hash: b6bfff1a5b0fad254a693b9d4275271d4dda7f03). Impact: enhanced scan reliability, reduced packet losses in high-traffic scenarios, and smoother network performance on affected hardware.