From: Christian Lamparter <chunkeey@googlemail.com>
Date: Sat, 1 May 2010 16:18:18 +0000 (+0200)
Subject: ar9170usb: remove deprecated aggregation code
X-Git-Tag: v2.6.35-rc1~473^2~167^2~39
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f3926b49b7122f66f8f2a1da4ae3275b112ab3e7;p=pandora-kernel.git

ar9170usb: remove deprecated aggregation code

This patch removes the incomplete AMPDU implementation in ar9170usb.

The code in question is:
 * too big and complex (more than 550 SLOC.)
   This is enough to qualify for a new separate code file!

 * unbalanced quantity & quality
	over-engineered areas like:
		* xmit scheduling and queuing frames for multiple HT peers
		* redundant frame sorting
	are confronted by gaping holes:
		* accurate transmission feedback
		* firmware error-handling and device reset
		* HT rate control algorithm

 * error-prone
	Since its inclusion, hardly anything was done to fix
	any of the outlined flaws from the initial commit message.

   => This also indicates poor maintainability.

 * relies heavily on several spinlocks.

As a result of this shortcomings, the code is slow and does not
even support the most basic 11n requirement: HT station mode.

Therefore, I request to purge my heap of **** from the kernel:
"ar9170: implement transmit aggregation".

The next item on the agenda is: (re-)start from scratch with
an adequate design to accommodate the special requirements
and features of the available frameworks and tools.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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