iwlwifi: cleanup iwl_tx_skb

This patch cleans up iwl_tx_skb function.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index b4ffd33..d2daa17 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -114,7 +114,7 @@
 #define IWL_DL_MAC80211      (1 << 1)
 #define IWL_DL_HOST_COMMAND  (1 << 2)
 #define IWL_DL_STATE         (1 << 3)
-
+#define IWL_DL_MACDUMP		(1 << 4)
 #define IWL_DL_RADIO         (1 << 7)
 #define IWL_DL_POWER         (1 << 8)
 #define IWL_DL_TEMP          (1 << 9)
@@ -154,6 +154,7 @@
 #define IWL_DEBUG_INFO(f, a...)    IWL_DEBUG(IWL_DL_INFO, f, ## a)
 
 #define IWL_DEBUG_MAC80211(f, a...)     IWL_DEBUG(IWL_DL_MAC80211, f, ## a)
+#define IWL_DEBUG_MACDUMP(f, a...)     IWL_DEBUG(IWL_DL_MACDUMP, f, ## a)
 #define IWL_DEBUG_TEMP(f, a...)   IWL_DEBUG(IWL_DL_TEMP, f, ## a)
 #define IWL_DEBUG_SCAN(f, a...)   IWL_DEBUG(IWL_DL_SCAN, f, ## a)
 #define IWL_DEBUG_RX(f, a...)     IWL_DEBUG(IWL_DL_RX, f, ## a)