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mac80211: Ensure power-level set properly for scanning.

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My previous patch to optimize scanning on operating channel
accidentally removed the code that would ensure power was
set to maximum for scanning.

This patch re-adds that functionality.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ben Greear 2011-02-07 13:44:38 -08:00 committed by John W. Linville
parent 603b3eefb9
commit 59bdf3b0fe
2 changed files with 10 additions and 2 deletions
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3
net/mac80211/main.c
View file

@ -199,7 +199,8 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
changed |= IEEE80211_CONF_CHANGE_SMPS;
}
if (scan_chan)
if ((local->scanning & SCAN_SW_SCANNING) ||
(local->scanning & SCAN_HW_SCANNING))
power = chan->max_power;
else
power = local->power_constr_level ?

9
net/mac80211/scan.c
View file

@ -307,11 +307,15 @@ static void __ieee80211_scan_completed_finish(struct ieee80211_hw *hw,
mutex_lock(&local->mtx);
on_oper_chan = ieee80211_cfg_on_oper_channel(local);
WARN_ON(local->scanning & (SCAN_SW_SCANNING | SCAN_HW_SCANNING));
if (was_hw_scan || !on_oper_chan) {
if (WARN_ON(local->scan_channel))
local->scan_channel = NULL;
ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
}
} else
/* Set power back to normal operating levels. */
ieee80211_hw_config(local, 0);
if (!was_hw_scan) {
bool on_oper_chan2;
@ -377,6 +381,9 @@ static int ieee80211_start_sw_scan(struct ieee80211_local *local)
ieee80211_configure_filter(local);
/* We need to set power level at maximum rate for scanning. */
ieee80211_hw_config(local, 0);
ieee80211_queue_delayed_work(&local->hw,
&local->scan_work,
IEEE80211_CHANNEL_TIME);