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wl12xx: remove unneeded locking 

With the scan callback now being callable from
any context, these unlocks/locks can go away.
This makes the code easier to understand, since
callers of these functions must no longer be
aware that the mutex may be dropped.

As Stanislaw is working on iwlwifi scanning, I
didn't change it to take advantage of the new
mac80211 semantics.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2010-08-26 13:30:27 +02:00 committed by John W. Linville
parent 8789d459bc
commit 0ec2f2724d
4 changed files with 0 additions and 8 deletions
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2
drivers/net/wireless/wl12xx/wl1251_event.c
View File

@ -34,9 +34,7 @@ static int wl1251_event_scan_complete(struct wl1251 *wl,
mbox->scheduled_scan_channels); mbox->scheduled_scan_channels);
if (wl->scanning) { if (wl->scanning) {
mutex_unlock(&wl->mutex);
ieee80211_scan_completed(wl->hw, false); ieee80211_scan_completed(wl->hw, false);
mutex_lock(&wl->mutex);
wl1251_debug(DEBUG_MAC80211, "mac80211 hw scan completed"); wl1251_debug(DEBUG_MAC80211, "mac80211 hw scan completed");
wl->scanning = false; wl->scanning = false;
} }

2
drivers/net/wireless/wl12xx/wl1251_main.c
View File

@ -467,9 +467,7 @@ static void wl1251_op_stop(struct ieee80211_hw *hw)
WARN_ON(wl->state != WL1251_STATE_ON); WARN_ON(wl->state != WL1251_STATE_ON);
if (wl->scanning) { if (wl->scanning) {
mutex_unlock(&wl->mutex);
ieee80211_scan_completed(wl->hw, true); ieee80211_scan_completed(wl->hw, true);
mutex_lock(&wl->mutex);
wl->scanning = false; wl->scanning = false;
} }

2
drivers/net/wireless/wl12xx/wl1271_main.c
View File

@ -948,9 +948,7 @@ static void wl1271_op_remove_interface(struct ieee80211_hw *hw,
ieee80211_enable_dyn_ps(wl->vif); ieee80211_enable_dyn_ps(wl->vif);
if (wl->scan.state != WL1271_SCAN_STATE_IDLE) { if (wl->scan.state != WL1271_SCAN_STATE_IDLE) {
mutex_unlock(&wl->mutex);
ieee80211_scan_completed(wl->hw, true); ieee80211_scan_completed(wl->hw, true);
mutex_lock(&wl->mutex);
wl->scan.state = WL1271_SCAN_STATE_IDLE; wl->scan.state = WL1271_SCAN_STATE_IDLE;
kfree(wl->scan.scanned_ch); kfree(wl->scan.scanned_ch);
wl->scan.scanned_ch = NULL; wl->scan.scanned_ch = NULL;

2
drivers/net/wireless/wl12xx/wl1271_scan.c
View File

@ -215,9 +215,7 @@ void wl1271_scan_stm(struct wl1271 *wl)
break; break;
case WL1271_SCAN_STATE_DONE: case WL1271_SCAN_STATE_DONE:
mutex_unlock(&wl->mutex);
ieee80211_scan_completed(wl->hw, false); ieee80211_scan_completed(wl->hw, false);
mutex_lock(&wl->mutex);
kfree(wl->scan.scanned_ch); kfree(wl->scan.scanned_ch);
wl->scan.scanned_ch = NULL; wl->scan.scanned_ch = NULL;