This is tiny optimization and grouping band/channel ops.
Signed-off-by: Rafał Miłecki <zajec5@xxxxxxxxx>
---
drivers/net/wireless/b43/main.c | 31 ++++++++++++++++---------------
1 file changed, 16 insertions(+), 15 deletions(-)
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index a9e50ee..59aa4fd 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -3807,16 +3807,23 @@ static int b43_op_config(struct ieee80211_hw *hw, u32 changed)
mutex_lock(&wl->mutex);
b43_mac_suspend(dev);
- /* Switch the band (if necessary). This might change the active core. */
- err = b43_switch_band(dev, conf->chandef.chan);
- if (err)
- goto out_unlock_mutex;
+ if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
+ if (conf_is_ht(conf))
+ phy->is_40mhz = conf_is_ht40_minus(conf) ||
+ conf_is_ht40_plus(conf);
+ else
+ phy->is_40mhz = false;
- if (conf_is_ht(conf))
- phy->is_40mhz =
- (conf_is_ht40_minus(conf) || conf_is_ht40_plus(conf));
- else
- phy->is_40mhz = false;
+ /* Switch the band (if necessary). */
+ err = b43_switch_band(dev, conf->chandef.chan);
+ if (err)
+ goto out_mac_enable;
+
+ /* Switch to the requested channel.
+ * The firmware takes care of races with the TX handler.
+ */
+ b43_switch_channel(dev, conf->chandef.chan->hw_value);
+ }
if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
b43_set_retry_limits(dev, conf->short_frame_max_tx_count,
@@ -3825,11 +3832,6 @@ static int b43_op_config(struct ieee80211_hw *hw, u32 changed)
if (!changed)
goto out_mac_enable;
- /* Switch to the requested channel.
- * The firmware takes care of races with the TX handler. */
- if (conf->chandef.chan->hw_value != phy->channel)
- b43_switch_channel(dev, conf->chandef.chan->hw_value);
-
dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_MONITOR);
/* Adjust the desired TX power level. */
@@ -3865,7 +3867,6 @@ static int b43_op_config(struct ieee80211_hw *hw, u32 changed)
out_mac_enable:
b43_mac_enable(dev);
-out_unlock_mutex:
mutex_unlock(&wl->mutex);
return err;
--
1.8.4.5
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