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, 3 insertions, 4 deletions

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 98f71827c7b3..d7fa8afd7ff8 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -355,10 +355,9 @@ static void bat_iv_ogm_aggregate_new(const unsigned char *packet_buff,
         if ((atomic_read(&bat_priv->aggregated_ogms)) &&
             (packet_len < MAX_AGGREGATION_BYTES))
                 forw_packet_aggr->skb = dev_alloc_skb(MAX_AGGREGATION_BYTES +
-                                                      sizeof(struct ethhdr));
+                                                      ETH_HLEN);
         else
-                forw_packet_aggr->skb = dev_alloc_skb(packet_len +
-                                                      sizeof(struct ethhdr));
+                forw_packet_aggr->skb = dev_alloc_skb(packet_len + ETH_HLEN);
 
         if (!forw_packet_aggr->skb) {
                 if (!own_packet)
@@ -366,7 +365,7 @@ static void bat_iv_ogm_aggregate_new(const unsigned char *packet_buff,
                 kfree(forw_packet_aggr);
                 goto out;
         }
-        skb_reserve(forw_packet_aggr->skb, sizeof(struct ethhdr));
+        skb_reserve(forw_packet_aggr->skb, ETH_HLEN);
 
         INIT_HLIST_NODE(&forw_packet_aggr->list);