From: Vivek Natarajan <vnatarajan@atheros.com>
Date: Mon, 30 Nov 2009 11:20:53 +0000 (+0530)
Subject: mac80211: Fix dynamic power save for scanning.
X-Git-Tag: v2.6.33-rc1~299^2~44^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7c3f4bbedc241ddcd3abe1f419c356e625231da1;p=pandora-kernel.git

mac80211: Fix dynamic power save for scanning.

Not only ps_sdata but also IEEE80211_CONF_PS is to be considered
before restoring PS in scan_ps_disable(). For instance, when ps_sdata
is set but CONF_PS is not set just because the dynamic timer is still
running, a sw scan leads to setting of CONF_PS in scan_ps_disable
instead of restarting the dynamic PS timer.
Also for the above case, a null data frame is to be sent after
returning to operating channel which was not happening with the
current implementation. This patch fixes this too.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Reviewed-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

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