On 1/23/2025 8:21 AM, Aditya Kumar Singh wrote: > In the US country code, to avoid including 6 GHz rules in the 5 GHz rules > list, the number of 5 GHz rules is set to a default constant value of 4 > (REG_US_5G_NUM_REG_RULES). However, if there are more than 4 valid 5 GHz > rules, the current logic will bypass the legitimate 6 GHz rules. > > For example, if there are 5 valid 5 GHz rules and 1 valid 6 GHz rule, the > current logic will only consider 4 of the 5 GHz rules, treating the last > valid rule as a 6 GHz rule. Consequently, the actual 6 GHz rule is never > processed, leading to the eventual disabling of 6 GHz channels. > > To fix this issue, instead of hardcoding the value to 4, use a helper > function to determine the number of 6 GHz rules present in the 5 GHz rules > list and ignore only those rules. > > Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 > > Cc: stable@xxxxxxxxxxxxxxx Note that an upcoming linux-firmware PR will bring in firmware that triggers this issue, so want to get all affected versions of the driver patched before issuing that PR. /jeff
