From: Antonio Quartulli Date: Sat, 18 Feb 2012 10:27:34 +0000 (+0100) Subject: batman-adv: use ETH_HLEN instead of sizeof(struct ethhdr) X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0d125074ebc8c971e939f8c2c8f90a80fa09aeb4;p=linux-beck.git 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 --- 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); diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c index c8642b586411..ad394c6496cc 100644 --- a/net/batman-adv/bridge_loop_avoidance.c +++ b/net/batman-adv/bridge_loop_avoidance.c @@ -290,9 +290,7 @@ static void bla_send_claim(struct bat_priv *bat_priv, uint8_t *mac, goto out; ethhdr = (struct ethhdr *)skb->data; - hw_src = (uint8_t *)ethhdr + - sizeof(struct ethhdr) + - sizeof(struct arphdr); + hw_src = (uint8_t *)ethhdr + ETH_HLEN + sizeof(struct arphdr); /* now we pretend that the client would have sent this ... */ switch (claimtype) { @@ -340,7 +338,7 @@ static void bla_send_claim(struct bat_priv *bat_priv, uint8_t *mac, skb_reset_mac_header(skb); skb->protocol = eth_type_trans(skb, soft_iface); bat_priv->stats.rx_packets++; - bat_priv->stats.rx_bytes += skb->len + sizeof(struct ethhdr); + bat_priv->stats.rx_bytes += skb->len + ETH_HLEN; soft_iface->last_rx = jiffies; netif_rx(skb); @@ -844,7 +842,7 @@ static int bla_process_claim(struct bat_priv *bat_priv, headlen = sizeof(*vhdr); } else { proto = ntohs(ethhdr->h_proto); - headlen = sizeof(*ethhdr); + headlen = ETH_HLEN; } if (proto != ETH_P_ARP) @@ -1302,7 +1300,7 @@ int bla_is_backbone_gw(struct sk_buff *skb, return 0; /* first, find out the vid. */ - if (!pskb_may_pull(skb, hdr_size + sizeof(struct ethhdr))) + if (!pskb_may_pull(skb, hdr_size + ETH_HLEN)) return 0; ethhdr = (struct ethhdr *)(((uint8_t *)skb->data) + hdr_size); diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c index e8c5da379a80..47c79d724ba3 100644 --- a/net/batman-adv/hard-interface.c +++ b/net/batman-adv/hard-interface.c @@ -574,8 +574,7 @@ static int batman_skb_recv(struct sk_buff *skb, struct net_device *dev, goto err_free; /* expect a valid ethernet header here. */ - if (unlikely(skb->mac_len != sizeof(struct ethhdr) || - !skb_mac_header(skb))) + if (unlikely(skb->mac_len != ETH_HLEN || !skb_mac_header(skb))) goto err_free; if (!hard_iface->soft_iface) 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)) { 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; diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c index b5f078cacc09..7c66b6121fa6 100644 --- a/net/batman-adv/send.c +++ b/net/batman-adv/send.c @@ -51,7 +51,7 @@ int send_skb_packet(struct sk_buff *skb, struct hard_iface *hard_iface, } /* push to the ethernet header. */ - if (my_skb_head_push(skb, sizeof(*ethhdr)) < 0) + if (my_skb_head_push(skb, ETH_HLEN) < 0) goto send_skb_err; skb_reset_mac_header(skb); diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c index efe0fbaadcd6..6e2530b02043 100644 --- a/net/batman-adv/soft-interface.c +++ b/net/batman-adv/soft-interface.c @@ -292,7 +292,7 @@ void interface_rx(struct net_device *soft_iface, /* skb->ip_summed = CHECKSUM_UNNECESSARY;*/ bat_priv->stats.rx_packets++; - bat_priv->stats.rx_bytes += skb->len + sizeof(struct ethhdr); + bat_priv->stats.rx_bytes += skb->len + ETH_HLEN; soft_iface->last_rx = jiffies; diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h index 4d93aad899f7..2f4848b776a7 100644 --- a/net/batman-adv/types.h +++ b/net/batman-adv/types.h @@ -27,7 +27,7 @@ #include "packet.h" #include "bitarray.h" -#define BAT_HEADER_LEN (sizeof(struct ethhdr) + \ +#define BAT_HEADER_LEN (ETH_HLEN + \ ((sizeof(struct unicast_packet) > sizeof(struct bcast_packet) ? \ sizeof(struct unicast_packet) : \ sizeof(struct bcast_packet)))) diff --git a/net/batman-adv/vis.c b/net/batman-adv/vis.c index c4a5b8cafada..cec216fb77c7 100644 --- a/net/batman-adv/vis.c +++ b/net/batman-adv/vis.c @@ -434,12 +434,12 @@ static struct vis_info *add_packet(struct bat_priv *bat_priv, return NULL; info->skb_packet = dev_alloc_skb(sizeof(*packet) + vis_info_len + - sizeof(struct ethhdr)); + ETH_HLEN); if (!info->skb_packet) { kfree(info); return NULL; } - skb_reserve(info->skb_packet, sizeof(struct ethhdr)); + skb_reserve(info->skb_packet, ETH_HLEN); packet = (struct vis_packet *)skb_put(info->skb_packet, sizeof(*packet) + vis_info_len); @@ -894,11 +894,11 @@ int vis_init(struct bat_priv *bat_priv) bat_priv->my_vis_info->skb_packet = dev_alloc_skb(sizeof(*packet) + MAX_VIS_PACKET_SIZE + - sizeof(struct ethhdr)); + ETH_HLEN); if (!bat_priv->my_vis_info->skb_packet) goto free_info; - skb_reserve(bat_priv->my_vis_info->skb_packet, sizeof(struct ethhdr)); + skb_reserve(bat_priv->my_vis_info->skb_packet, ETH_HLEN); packet = (struct vis_packet *)skb_put(bat_priv->my_vis_info->skb_packet, sizeof(*packet));