ath9k: Remove ath9k rate control
authorSujith Manoharan <c_manoha@qca.qualcomm.com>
Thu, 6 Feb 2014 04:52:55 +0000 (10:22 +0530)
committerJohn W. Linville <linville@tuxdriver.com>
Wed, 12 Feb 2014 20:36:04 +0000 (15:36 -0500)
commit9e495a2603334f9c8fcc6802300c22fc8a0eae02
treee26922f0ccd4fb01bcaad53500f69977494e4fdc
parent482b30b653e2be8aa1bf70b7aaac56ff0aeb070c
ath9k: Remove ath9k rate control

There is no benefit in retaining the legacy rate control module
in the driver codebase.

It is known to be buggy and has less than optimal performance
in real-world environments compared with minstrel. The only
reason that it was kept when we made the switch to minstrel
as default was that it showed higher throughput numbers in a
clean/ideal environment.

This is no longer the case and minstrel can push ath9k to
the same throughput levels. In TCP, with 3-stream cards, more than
295 Mbps can be obtained in open air, with 2-stream cards,
210 Mbps is easily reached. To test performance issues,
instead of using a broken rate control module, it is better
to use the fixed-rate interface provided by mac80211 anyway.

The ath9k RC has not received any bug fixes in years and is
just bit-rotting away - this patch removes it.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
drivers/net/wireless/ath/ath9k/Kconfig
drivers/net/wireless/ath/ath9k/Makefile
drivers/net/wireless/ath/ath9k/ath9k.h
drivers/net/wireless/ath/ath9k/debug.h
drivers/net/wireless/ath/ath9k/dfs_debug.h
drivers/net/wireless/ath/ath9k/hw.c
drivers/net/wireless/ath/ath9k/init.c
drivers/net/wireless/ath/ath9k/rc.c [deleted file]
drivers/net/wireless/ath/ath9k/rc.h [deleted file]