mac80211: Fix dynamic power save for scanning.
authorVivek Natarajan <vnatarajan@atheros.com>
Mon, 30 Nov 2009 11:20:53 +0000 (16:20 +0530)
committerJohn W. Linville <linville@tuxdriver.com>
Mon, 7 Dec 2009 21:51:18 +0000 (16:51 -0500)
commit7c3f4bbedc241ddcd3abe1f419c356e625231da1
tree98b1141a86d4ac65ae930e1c0cb15cd6a17d2a01
parentbc83b6819289c031c439a5aa18ba0fd539d14f3e
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>
net/mac80211/ieee80211_i.h
net/mac80211/scan.c