iwlwifi: small compile warnings without CONFIG_IWLWIFI_DEBUG

CC [M]  drivers/net/wireless/iwlwifi/iwl-scan.o
drivers/net/wireless/iwlwifi/iwl-scan.c: In function 'iwl_rx_scan_complete_notif':
drivers/net/wireless/iwlwifi/iwl-scan.c:274: warning: unused variable 'scan_notif'

Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Tomas Winkler <tomasw@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index efc750d..5a00ac2 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -270,6 +270,7 @@
 static void iwl_rx_scan_complete_notif(struct iwl_priv *priv,
 				       struct iwl_rx_mem_buffer *rxb)
 {
+#ifdef CONFIG_IWLWIFI_DEBUG
 	struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
 	struct iwl_scancomplete_notification *scan_notif = (void *)pkt->u.raw;
 
@@ -277,6 +278,7 @@
 		       scan_notif->scanned_channels,
 		       scan_notif->tsf_low,
 		       scan_notif->tsf_high, scan_notif->status);
+#endif
 
 	/* The HW is no longer scanning */
 	clear_bit(STATUS_SCAN_HW, &priv->status);