Toke Høiland-Jørgensen <toke@xxxxxxx> wrote:
> From: Toke Høiland-Jørgensen <toke@xxxxxxxxxx>
>
> The ieee80211_tx_info_clear_status() helper also clears the rate counts and
> the driver-private part of struct ieee80211_tx_info, so using it breaks
> quite a few other things. So back out of using it, and instead define a
> ath-internal helper that only clears the area between the
> status_driver_data and the rates info. Combined with moving the
> ath_frame_info struct to status_driver_data, this avoids clearing anything
> we shouldn't be, and so we can keep the existing code for handling the rate
> information.
>
> While fixing this I also noticed that the setting of
> tx_info->status.rates[tx_rateindex].count on hardware underrun errors was
> always immediately overridden by the normal setting of the same fields, so
> rearrange the code so that the underrun detection actually takes effect.
>
> The new helper could be generalised to a 'memset_between()' helper, but
> leave it as a driver-internal helper for now since this needs to go to
> stable.
>
> Cc: stable@xxxxxxxxxxxxxxx
> Reported-by: Peter Seiderer <ps.report@xxxxxxx>
> Fixes: 037250f0a45c ("ath9k: Properly clear TX status area before reporting to mac80211")
> Signed-off-by: Toke Høiland-Jørgensen <toke@xxxxxxxxxx>
> Reviewed-by: Peter Seiderer <ps.report@xxxxxxx>
> Tested-by: Peter Seiderer <ps.report@xxxxxxx>
Patch applied to wireless.git, thanks.
5a6b06f5927c ath9k: Fix usage of driver-private space in tx_info
--
https://patchwork.kernel.org/project/linux-wireless/patch/20220404204800.2681133-1-toke@xxxxxxx/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
