mac80211: use reset to set header pointer
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/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index c6be0b4..5b6aec1 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -205,9 +205,9 @@
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- skb_set_mac_header(skb, 0);
- skb_set_network_header(skb, 0);
- skb_set_transport_header(skb, 0);
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
+ skb_reset_transport_header(skb);
/* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
skb_set_queue_mapping(skb, IEEE80211_AC_VO);
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 9127957..5690e4c 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -3101,7 +3101,7 @@
ieee80211_add_rx_radiotap_header(local, skb, rate, needed_headroom,
false);
- skb_set_mac_header(skb, 0);
+ skb_reset_mac_header(skb);
skb->ip_summed = CHECKSUM_UNNECESSARY;
skb->pkt_type = PACKET_OTHERHOST;
skb->protocol = htons(ETH_P_802_2);
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 6101deb..8b1b2ea 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -697,7 +697,7 @@
rtap_len, shift);
/* XXX: is this sufficient for BPF? */
- skb_set_mac_header(skb, 0);
+ skb_reset_mac_header(skb);
skb->ip_summed = CHECKSUM_UNNECESSARY;
skb->pkt_type = PACKET_OTHERHOST;
skb->protocol = htons(ETH_P_802_2);
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 3a7475f..62ad532 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -2458,7 +2458,7 @@
/* 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);
@@ -3973,9 +3973,9 @@
{
int ac = ieee802_1d_to_ac[tid & 7];
- skb_set_mac_header(skb, 0);
- skb_set_network_header(skb, 0);
- skb_set_transport_header(skb, 0);
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
+ skb_reset_transport_header(skb);
skb_set_queue_mapping(skb, ac);
skb->priority = tid;