From: Karl Beldan <karl.beldan@rivierawaves.com>
Date: Wed, 17 Apr 2013 11:43:22 +0000 (+0200)
Subject: mac80211: optimize minstrel_ewma
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~65^2~43^2^2~61^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eea85999eca4d7f3528010cd8277392cd56ba713;p=pandora-kernel.git

mac80211: optimize minstrel_ewma

Use powers of two in ewma of minstrel.
This changes :
- EWMA_DIV   from 100 to 2^7
- EWMA_LEVEL from 75 (/EWMA_DIV=100) to 2^6 + 2^5 (/EWMA_DIV=128)

Note that this changes EWMA_DIV - EWMA_LEVEL from 25 to 2^5 and keeps
EWMA_LEVEL / EWMA_DIV == 0.75.

Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---

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