wireless: use reset to set mac header

Since offset is zero, it's not necessary to use set function. Reset
function is straightforward, and will remove the unnecessary add
operation in set function.

Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/wireless/util.c b/net/wireless/util.c
index c7f6820bb25816346e35cd9935abed06446eafae..9f440a9de63b486e5fd565533fa01975621abbbb 100644 (file)
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -636,7 +636,7 @@ int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
        /* Update skb pointers to various headers since this modified frame
         * is going to go through Linux networking code that may potentially
         * need things like pointer to IP header. */
-       skb_set_mac_header(skb, 0);
+       skb_reset_mac_header(skb);
        skb_set_network_header(skb, nh_pos);
        skb_set_transport_header(skb, h_pos);