Today, I saw this error on OpenWrt SNAPSHOT version r22557-69812bf8ed / LuCI Master git-23.093.56957-2145121
[68554.314535] ath11k c000000.wifi: failed to flush transmit queue, data pkts pending 1
[68627.358880] ath11k c000000.wifi: failed to flush transmit queue, data pkts pending 2
[68730.325043] ath11k c000000.wifi: failed to flush transmit queue, data pkts pending 1
[83661.611288] ath11k c000000.wifi: failed to flush transmit queue, data pkts pending 1