From 8acbea614a75bc2221a84f222dc32be0877861ce Mon Sep 17 00:00:00 2001
From: Paul Stewart <pstew@chromium.org>
Date: Tue, 25 Feb 2014 16:31:37 -0800
Subject: [PATCH] mwifiex: Track BA sequence number reset

Some stations reset the sequence number for traffic-ids (TIDs)
as they initiate a block-ACK session.  In order to detect such
behavior, mwifiex must note the starting sequence number given
during the ADDBA request.  If the first received sequence number
after the ADDBA falls outside the receive window for this TID but
after the the ADDBA starting sequence number, we can assume that
this AP has reset its sequence number during the ADDBA.  In this
case we must adjust the input window backward to incorporate this
received sequence number instead of ignoring it.  Otherwise, we
could fail to successfully retrieve an arbitrarily large number
of downstream frames at the beginning of the block-ACK session.

Signed-off-by: Paul Stewart <pstew@chromium.org>
Acked-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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