Hi all,

I'm getting problems when using monitor mode on an ath10k radio in a octeontx board.

Latest LEDE on Gateworks Newport GW6300 (octeontx) with Compex WLE900VX ath10k radio. Using 4.14.13 mainline OpenWrt kernel

The syslog is getting spammed with “ieee80211_tx_status: headroom too small” errors when exists a wireless interface using monitor mode and a station gets connected:

Thu Jan  1 00:52:00 1970 kern.err kernel: [  157.740108] ieee80211_tx_status: headroom too small Thu Jan  1 00:52:01 1970 kern.err kernel: [  158.764099] ieee80211_tx_status: headroom too small Thu Jan  1 00:52:02 1970 kern.err kernel: [  159.788129] ieee80211_tx_status: headroom too small

These errors are shown using ath10k and ath10k-ct driver versions (currently using ath10k-ct)

Steps to reproduce:

1) Create a new monitor wireless interface

iw phy phy0 interface add mon0 type monitor
ip l set dev mon0 up

2) Connect a client to the access point configured radio

Thanks,
Enrique Rodriguez

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