batman-adv: use ETH_HLEN instead of sizeof(struct ethhdr)

Instead of using sizeof(struct ethhdr) it is strongly recommended to use the
kernel macro ETH_HLEN. This patch substitute each occurrence of the former
expressione with the latter one.

Signed-off-by: Antonio Quartulli <ordex@autistici.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index ac13a6a7409d..ff560863bc74 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -313,7 +313,7 @@ static int recv_my_icmp_packet(struct bat_priv *bat_priv,
                 goto out;
 
         /* create a copy of the skb, if needed, to modify it. */
-        if (skb_cow(skb, sizeof(struct ethhdr)) < 0)
+        if (skb_cow(skb, ETH_HLEN) < 0)
                 goto out;
 
         icmp_packet = (struct icmp_packet_rr *)skb->data;
@@ -368,7 +368,7 @@ static int recv_icmp_ttl_exceeded(struct bat_priv *bat_priv,
                 goto out;
 
         /* create a copy of the skb, if needed, to modify it. */
-        if (skb_cow(skb, sizeof(struct ethhdr)) < 0)
+        if (skb_cow(skb, ETH_HLEN) < 0)
                 goto out;
 
         icmp_packet = (struct icmp_packet *)skb->data;
@@ -454,7 +454,7 @@ int recv_icmp_packet(struct sk_buff *skb, struct hard_iface *recv_if)
                 goto out;
 
         /* create a copy of the skb, if needed, to modify it. */
-        if (skb_cow(skb, sizeof(struct ethhdr)) < 0)
+        if (skb_cow(skb, ETH_HLEN) < 0)
                 goto out;
 
         icmp_packet = (struct icmp_packet_rr *)skb->data;
@@ -841,7 +841,7 @@ static int route_unicast_packet(struct sk_buff *skb, struct hard_iface *recv_if)
                 goto out;
 
         /* create a copy of the skb, if needed, to modify it. */
-        if (skb_cow(skb, sizeof(struct ethhdr)) < 0)
+        if (skb_cow(skb, ETH_HLEN) < 0)
                 goto out;
 
         unicast_packet = (struct unicast_packet *)skb->data;