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, 2 insertions, 2 deletions

diff --git a/net/batman-adv/icmp_socket.c b/net/batman-adv/icmp_socket.c
index b87518edcef9..2e98a57f3407 100644
--- a/net/batman-adv/icmp_socket.c
+++ b/net/batman-adv/icmp_socket.c
@@ -175,13 +175,13 @@ static ssize_t bat_socket_write(struct file *file, const char __user *buff,
         if (len >= sizeof(struct icmp_packet_rr))
                 packet_len = sizeof(struct icmp_packet_rr);
 
-        skb = dev_alloc_skb(packet_len + sizeof(struct ethhdr));
+        skb = dev_alloc_skb(packet_len + ETH_HLEN);
         if (!skb) {
                 len = -ENOMEM;
                 goto out;
         }
 
-        skb_reserve(skb, sizeof(struct ethhdr));
+        skb_reserve(skb, ETH_HLEN);
         icmp_packet = (struct icmp_packet_rr *)skb_put(skb, packet_len);
 
         if (copy_from_user(icmp_packet, buff, packet_len)) {