staging: ks7010: refactor hostif_sme_power_mgmt_set function

This commit refactor hostif_sme_power_mgmt_set avoiding to
use switch-case statement and simplifying data paths. This
improves readability.
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/ks7010/ks_hostif.c

@@ -1880,36 +1880,23 @@ void hostif_sme_multicast_set(struct ks_wlan_private *priv)
 	spin_unlock(&priv->multicast_spin);
 }
 
-static
-void hostif_sme_power_mgmt_set(struct ks_wlan_private *priv)
+static void hostif_sme_power_mgmt_set(struct ks_wlan_private *priv)
 {
 	u32 mode, wake_up, receive_dtims;
 
-	switch (priv->reg.power_mgmt) {
-	case POWER_MGMT_SAVE1:
-		mode = (priv->reg.operation_mode == MODE_INFRASTRUCTURE) ?
-			POWER_SAVE : POWER_ACTIVE;
-		wake_up = 0;
-		receive_dtims = 0;
-		break;
-	case POWER_MGMT_SAVE2:
-		if (priv->reg.operation_mode == MODE_INFRASTRUCTURE) {
-			mode = POWER_SAVE;
-			wake_up = 0;
-			receive_dtims = 1;
-		} else {
+	if (priv->reg.power_mgmt != POWER_MGMT_SAVE1 &&
+	    priv->reg.power_mgmt != POWER_MGMT_SAVE2) {
 		mode = POWER_ACTIVE;
 		wake_up = 0;
 		receive_dtims = 0;
-		}
-		break;
-	case POWER_MGMT_ACTIVE:
-	default:
-		mode = POWER_ACTIVE;
+	} else {
+		mode = (priv->reg.operation_mode == MODE_INFRASTRUCTURE) ?
+			POWER_SAVE : POWER_ACTIVE;
 		wake_up = 0;
-		receive_dtims = 0;
-		break;
+		receive_dtims = (priv->reg.operation_mode == MODE_INFRASTRUCTURE &&
+				 priv->reg.power_mgmt == POWER_MGMT_SAVE2);
 	}
+
 	hostif_power_mgmt_request(priv, mode, wake_up, receive_dtims);
 }