[PATCH] mac80211: Fix wrong channel bandwidths reported for aggregates

Adrian Chadd adrian at freebsd.org
Tue Jul 19 08:03:21 PDT 2022

On Mon, 18 Jul 2022 at 15:28, Linus Lüssing <linus.luessing at c0d3.blue> wrote:
> From: Linus Lüssing <ll at simonwunderlich.de>
> AR9003 based wifi chips have a hardware bug, they always report a
> channel bandwidth of HT40 for any sub-frame of an aggregate which is
> not the last one. Only the last sub-frame has correct channel bandwidth
> information.


It's not a hardware bug. Dating back to the original AR5416 11n chip,
most flags aren't valid for subframes in an aggregate. Only the final
frame has valid flags. This was explicitly covered internally way back


More information about the ath10k mailing list