tree 8d8bb5a53f2316cd36f8b4c709e7db8eafe3db89
parent 231c3a1f0630c07a584905507a1cb7b705a56ab7
author Felix Fietkau <nbd@openwrt.org> 1284983138 +0200
committer John W. Linville <linville@tuxdriver.com> 1285081533 -0400

ath9k: clean up / fix aggregation session flush

The tid aggregation cleanup is a bit fragile, as it discards failed
subframes in some places, and retransmits them in others. This could
block the cleanup of an existing aggregation session, if a retransmission
for a tid is issued, yet the tid is never scheduled again because of
the cleanup state.

Fix this by getting rid of as many subframes as possible, as early
as possible, and immediately transmitting pending subframes as regular
HT frames instead of waiting for the cleanup to complete.

Drop all pending subframes while keeping track of the Block ACK window
during aggregate tx completion to prevent sending out stale subframes,
which could confuse the receiver side.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>