[PATCH 0/5] wifi: ath12k: Fix 5 GHz Wi-Fi regression on WCN7850

[Saikiran]

This series fixes a critical 5 GHz Wi-Fi regression affecting WCN7850 
(Snapdragon X Elite laptops) in kernel 6.17+. On affected systems, 
only 2.4 GHz networks are detected while 5 GHz networks are completely 
invisible.

The root cause is broken frequency range filtering logic introduced 
between kernel 6.16 and 6.17 that filters out all channels when 
frequency range values are reset to zero during regulatory updates.

Patch 4/5 is the primary fix that removes the broken filtering logic.
The other patches address related firmware stats handling issues and
regulatory domain initialization problems discovered during debugging.

Tested extensively on WCN7850 hw2.0 with firmware WLAN.HMT.1.1.c5-00302
on Lenovo Yoga Slim 7x (Snapdragon X Elite). Both 2.4 GHz and 5 GHz
networks now work correctly.

Saikiran (5):
  wifi: ath12k: Fix firmware stats leak on get_txpower error paths
  wifi: ath12k: Initialize regulatory frequency ranges to avoid
    filtering all channels
  wifi: ath12k: Add fallback regulatory domain for WCN7850 without
    SMBIOS
  wifi: ath12k: Remove broken frequency range filtering
  wifi: ath12k: Fix invalid frequency error in freq_to_idx

 drivers/net/wireless/ath/ath12k/core.c | 31 +++++++++++++++++++++
 drivers/net/wireless/ath/ath12k/mac.c  |  2 ++
 drivers/net/wireless/ath/ath12k/reg.c  | 13 ---------
 drivers/net/wireless/ath/ath12k/wmi.c  |  6 +---
 4 files changed, 33 insertions(+), 19 deletions(-)

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2.51.0