ath9k: fix ps-poll responses under a-mpdu sessions
When passing tx frames to the U-APSD queue for powersave poll responses, the ath_atx_tid pointer needs to be passed to ath_tx_setup_buffer for proper sequence number accounting. This fixes high latency and connection stability issues with ath9k running as AP and a few kinds of mobile phones as client, when PS-Poll is heavily used Cc: stable@vger.kernel.org Signed-off-by: NFelix Fietkau <nbd@openwrt.org> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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