batman-adv: Calculate sizeof using variable insead of types

Documentation/CodingStyle recommends to use the form

	p = kmalloc(sizeof(*p), ...);

to calculate the size of a struct and not the version where the struct
name is spelled out to prevent bugs when the type of p changes. This
also seems appropriate for manipulation of buffers when they are
directly associated with p.

Signed-off-by: Sven Eckelmann <sven@narfation.org>

14 files changed, 65 insertions, 72 deletions

diff --git a/net/batman-adv/aggregation.c b/net/batman-adv/aggregation.c
index f8ccb49bf87e..b41f25b59470 100644
--- a/net/batman-adv/aggregation.c
+++ b/net/batman-adv/aggregation.c
@@ -119,7 +119,7 @@ static void new_aggregated_packet(const unsigned char *packet_buff,
                 }
         }
 
-        forw_packet_aggr = kmalloc(sizeof(struct forw_packet), GFP_ATOMIC);
+        forw_packet_aggr = kmalloc(sizeof(*forw_packet_aggr), GFP_ATOMIC);
         if (!forw_packet_aggr) {
                 if (!own_packet)
                         atomic_inc(&bat_priv->batman_queue_left);
diff --git a/net/batman-adv/bat_debugfs.c b/net/batman-adv/bat_debugfs.c
index 1049ae3f5367..d0af9bf69e46 100644
--- a/net/batman-adv/bat_debugfs.c
+++ b/net/batman-adv/bat_debugfs.c
@@ -185,7 +185,7 @@ static int debug_log_setup(struct bat_priv *bat_priv)
         if (!bat_priv->debug_dir)
                 goto err;
 
-        bat_priv->debug_log = kzalloc(sizeof(struct debug_log), GFP_ATOMIC);
+        bat_priv->debug_log = kzalloc(sizeof(*bat_priv->debug_log), GFP_ATOMIC);
         if (!bat_priv->debug_log)
                 goto err;
 
diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index e9c7eb1a1f9d..a44dff3efb7f 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -273,7 +273,7 @@ static void gw_node_add(struct bat_priv *bat_priv,
         struct gw_node *gw_node;
         int down, up;
 
-        gw_node = kzalloc(sizeof(struct gw_node), GFP_ATOMIC);
+        gw_node = kzalloc(sizeof(*gw_node), GFP_ATOMIC);
         if (!gw_node)
                 return;
 
@@ -508,7 +508,7 @@ int gw_is_target(struct bat_priv *bat_priv, struct sk_buff *skb)
         /* check for ip header */
         switch (ntohs(ethhdr->h_proto)) {
         case ETH_P_IP:
-                if (!pskb_may_pull(skb, header_len + sizeof(struct iphdr)))
+                if (!pskb_may_pull(skb, header_len + sizeof(*iphdr)))
                         return 0;
                 iphdr = (struct iphdr *)(skb->data + header_len);
                 header_len += iphdr->ihl * 4;
@@ -519,10 +519,10 @@ int gw_is_target(struct bat_priv *bat_priv, struct sk_buff *skb)
 
                 break;
         case ETH_P_IPV6:
-                if (!pskb_may_pull(skb, header_len + sizeof(struct ipv6hdr)))
+                if (!pskb_may_pull(skb, header_len + sizeof(*ipv6hdr)))
                         return 0;
                 ipv6hdr = (struct ipv6hdr *)(skb->data + header_len);
-                header_len += sizeof(struct ipv6hdr);
+                header_len += sizeof(*ipv6hdr);
 
                 /* check for udp header */
                 if (ipv6hdr->nexthdr != IPPROTO_UDP)
@@ -533,10 +533,10 @@ int gw_is_target(struct bat_priv *bat_priv, struct sk_buff *skb)
                 return 0;
         }
 
-        if (!pskb_may_pull(skb, header_len + sizeof(struct udphdr)))
+        if (!pskb_may_pull(skb, header_len + sizeof(*udphdr)))
                 return 0;
         udphdr = (struct udphdr *)(skb->data + header_len);
-        header_len += sizeof(struct udphdr);
+        header_len += sizeof(*udphdr);
 
         /* check for bootp port */
         if ((ntohs(ethhdr->h_proto) == ETH_P_IP) &&
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index e626e75a7e65..e0052cf389db 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -459,7 +459,7 @@ static struct hard_iface *hardif_add_interface(struct net_device *net_dev)
 
         dev_hold(net_dev);
 
-        hard_iface = kmalloc(sizeof(struct hard_iface), GFP_ATOMIC);
+        hard_iface = kmalloc(sizeof(*hard_iface), GFP_ATOMIC);
         if (!hard_iface) {
                 pr_err("Can't add interface (%s): out of memory\n",
                        net_dev->name);
diff --git a/net/batman-adv/hash.c b/net/batman-adv/hash.c
index c5213d8f2cca..2a172505f513 100644
--- a/net/batman-adv/hash.c
+++ b/net/batman-adv/hash.c
@@ -46,15 +46,16 @@ struct hashtable_t *hash_new(int size)
 {
         struct hashtable_t *hash;
 
-        hash = kmalloc(sizeof(struct hashtable_t), GFP_ATOMIC);
+        hash = kmalloc(sizeof(*hash), GFP_ATOMIC);
         if (!hash)
                 return NULL;
 
-        hash->table = kmalloc(sizeof(struct element_t *) * size, GFP_ATOMIC);
+        hash->table = kmalloc(sizeof(*hash->table) * size, GFP_ATOMIC);
         if (!hash->table)
                 goto free_hash;
 
-        hash->list_locks = kmalloc(sizeof(spinlock_t) * size, GFP_ATOMIC);
+        hash->list_locks = kmalloc(sizeof(*hash->list_locks) * size,
+                                   GFP_ATOMIC);
         if (!hash->list_locks)
                 goto free_table;
 
diff --git a/net/batman-adv/icmp_socket.c b/net/batman-adv/icmp_socket.c
index fa22ba2bb832..ac3520e057c0 100644
--- a/net/batman-adv/icmp_socket.c
+++ b/net/batman-adv/icmp_socket.c
@@ -46,7 +46,7 @@ static int bat_socket_open(struct inode *inode, struct file *file)
 
         nonseekable_open(inode, file);
 
-        socket_client = kmalloc(sizeof(struct socket_client), GFP_KERNEL);
+        socket_client = kmalloc(sizeof(*socket_client), GFP_KERNEL);
 
         if (!socket_client)
                 return -ENOMEM;
@@ -310,7 +310,7 @@ static void bat_socket_add_packet(struct socket_client *socket_client,
 {
         struct socket_packet *socket_packet;
 
-        socket_packet = kmalloc(sizeof(struct socket_packet), GFP_ATOMIC);
+        socket_packet = kmalloc(sizeof(*socket_packet), GFP_ATOMIC);
 
         if (!socket_packet)
                 return;
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index 3ea997deb112..a6c35d4e332b 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -86,7 +86,7 @@ struct neigh_node *create_neighbor(struct orig_node *orig_node,
         bat_dbg(DBG_BATMAN, bat_priv,
                 "Creating new last-hop neighbor of originator\n");
 
-        neigh_node = kzalloc(sizeof(struct neigh_node), GFP_ATOMIC);
+        neigh_node = kzalloc(sizeof(*neigh_node), GFP_ATOMIC);
         if (!neigh_node)
                 return NULL;
 
@@ -196,7 +196,7 @@ struct orig_node *get_orig_node(struct bat_priv *bat_priv, const uint8_t *addr)
         bat_dbg(DBG_BATMAN, bat_priv,
                 "Creating new originator: %pM\n", addr);
 
-        orig_node = kzalloc(sizeof(struct orig_node), GFP_ATOMIC);
+        orig_node = kzalloc(sizeof(*orig_node), GFP_ATOMIC);
         if (!orig_node)
                 return NULL;
 
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index e0df4a007eac..07f23ba31ad4 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -1357,7 +1357,7 @@ out:
 int recv_unicast_packet(struct sk_buff *skb, struct hard_iface *recv_if)
 {
         struct unicast_packet *unicast_packet;
-        int hdr_size = sizeof(struct unicast_packet);
+        int hdr_size = sizeof(*unicast_packet);
 
         if (check_unicast_packet(skb, hdr_size) < 0)
                 return NET_RX_DROP;
@@ -1377,7 +1377,7 @@ int recv_ucast_frag_packet(struct sk_buff *skb, struct hard_iface *recv_if)
 {
         struct bat_priv *bat_priv = netdev_priv(recv_if->soft_iface);
         struct unicast_frag_packet *unicast_packet;
-        int hdr_size = sizeof(struct unicast_frag_packet);
+        int hdr_size = sizeof(*unicast_packet);
         struct sk_buff *new_skb = NULL;
         int ret;
 
@@ -1413,7 +1413,7 @@ int recv_bcast_packet(struct sk_buff *skb, struct hard_iface *recv_if)
         struct orig_node *orig_node = NULL;
         struct bcast_packet *bcast_packet;
         struct ethhdr *ethhdr;
-        int hdr_size = sizeof(struct bcast_packet);
+        int hdr_size = sizeof(*bcast_packet);
         int ret = NET_RX_DROP;
         int32_t seq_diff;
 
@@ -1491,7 +1491,7 @@ int recv_vis_packet(struct sk_buff *skb, struct hard_iface *recv_if)
         struct vis_packet *vis_packet;
         struct ethhdr *ethhdr;
         struct bat_priv *bat_priv = netdev_priv(recv_if->soft_iface);
-        int hdr_size = sizeof(struct vis_packet);
+        int hdr_size = sizeof(*vis_packet);
 
         /* keep skb linear */
         if (skb_linearize(skb) < 0)
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index 9a20ba9e056f..d0cfa95e3037 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -73,7 +73,7 @@ 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(struct ethhdr)) < 0)
+        if (my_skb_head_push(skb, sizeof(*ethhdr)) < 0)
                 goto send_skb_err;
 
         skb_reset_mac_header(skb);
@@ -144,7 +144,7 @@ static void send_packet_to_if(struct forw_packet *forw_packet,
                         hard_iface->net_dev->name,
                         hard_iface->net_dev->dev_addr);
 
-                buff_pos += sizeof(struct batman_packet) +
+                buff_pos += sizeof(*batman_packet) +
                         (batman_packet->num_tt * ETH_ALEN);
                 packet_num++;
                 batman_packet = (struct batman_packet *)
@@ -220,19 +220,18 @@ static void rebuild_batman_packet(struct bat_priv *bat_priv,
         unsigned char *new_buff;
         struct batman_packet *batman_packet;
 
-        new_len = sizeof(struct batman_packet) +
-                        (bat_priv->num_local_tt * ETH_ALEN);
+        new_len = sizeof(*batman_packet) + (bat_priv->num_local_tt * ETH_ALEN);
         new_buff = kmalloc(new_len, GFP_ATOMIC);
 
         /* keep old buffer if kmalloc should fail */
         if (new_buff) {
                 memcpy(new_buff, hard_iface->packet_buff,
-                       sizeof(struct batman_packet));
+                       sizeof(*batman_packet));
                 batman_packet = (struct batman_packet *)new_buff;
 
                 batman_packet->num_tt = tt_local_fill_buffer(bat_priv,
-                                new_buff + sizeof(struct batman_packet),
-                                new_len - sizeof(struct batman_packet));
+                                        new_buff + sizeof(*batman_packet),
+                                        new_len - sizeof(*batman_packet));
 
                 kfree(hard_iface->packet_buff);
                 hard_iface->packet_buff = new_buff;
@@ -368,7 +367,7 @@ void schedule_forward_packet(struct orig_node *orig_node,
         send_time = forward_send_time();
         add_bat_packet_to_list(bat_priv,
                                (unsigned char *)batman_packet,
-                               sizeof(struct batman_packet) + tt_buff_len,
+                               sizeof(*batman_packet) + tt_buff_len,
                                if_incoming, 0, send_time);
 }
 
@@ -424,7 +423,7 @@ int add_bcast_packet_to_list(struct bat_priv *bat_priv,
         if (!primary_if)
                 goto out_and_inc;
 
-        forw_packet = kmalloc(sizeof(struct forw_packet), GFP_ATOMIC);
+        forw_packet = kmalloc(sizeof(*forw_packet), GFP_ATOMIC);
 
         if (!forw_packet)
                 goto out_and_inc;
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 1bec3a0f9721..cead606008a1 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -123,8 +123,7 @@ static struct softif_neigh_vid *softif_neigh_vid_get(struct bat_priv *bat_priv,
                 goto out;
         }
 
-        softif_neigh_vid = kzalloc(sizeof(struct softif_neigh_vid),
-                                   GFP_ATOMIC);
+        softif_neigh_vid = kzalloc(sizeof(*softif_neigh_vid), GFP_ATOMIC);
         if (!softif_neigh_vid)
                 goto out;
 
@@ -170,7 +169,7 @@ static struct softif_neigh *softif_neigh_get(struct bat_priv *bat_priv,
                 goto unlock;
         }
 
-        softif_neigh = kzalloc(sizeof(struct softif_neigh), GFP_ATOMIC);
+        softif_neigh = kzalloc(sizeof(*softif_neigh), GFP_ATOMIC);
         if (!softif_neigh)
                 goto unlock;
 
@@ -611,7 +610,7 @@ int interface_tx(struct sk_buff *skb, struct net_device *soft_iface)
                 if (!primary_if)
                         goto dropped;
 
-                if (my_skb_head_push(skb, sizeof(struct bcast_packet)) < 0)
+                if (my_skb_head_push(skb, sizeof(*bcast_packet)) < 0)
                         goto dropped;
 
                 bcast_packet = (struct bcast_packet *)skb->data;
@@ -790,7 +789,7 @@ static void interface_setup(struct net_device *dev)
 
         SET_ETHTOOL_OPS(dev, &bat_ethtool_ops);
 
-        memset(priv, 0, sizeof(struct bat_priv));
+        memset(priv, 0, sizeof(*priv));
 }
 
 struct net_device *softif_create(const char *name)
@@ -799,8 +798,7 @@ struct net_device *softif_create(const char *name)
         struct bat_priv *bat_priv;
         int ret;
 
-        soft_iface = alloc_netdev(sizeof(struct bat_priv) , name,
-                                   interface_setup);
+        soft_iface = alloc_netdev(sizeof(*bat_priv), name, interface_setup);
 
         if (!soft_iface) {
                 pr_err("Unable to allocate the batman interface: %s\n", name);
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 802eacef05b8..561f76968d5e 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -164,7 +164,7 @@ void tt_local_add(struct net_device *soft_iface, const uint8_t *addr)
         bat_dbg(DBG_ROUTES, bat_priv,
                 "Creating new local tt entry: %pM\n", addr);
 
-        tt_local_entry = kmalloc(sizeof(struct tt_local_entry), GFP_ATOMIC);
+        tt_local_entry = kmalloc(sizeof(*tt_local_entry), GFP_ATOMIC);
         if (!tt_local_entry)
                 return;
 
@@ -427,9 +427,8 @@ void tt_global_add_orig(struct bat_priv *bat_priv,
                 if (!tt_global_entry) {
                         spin_unlock_bh(&bat_priv->tt_ghash_lock);
 
-                        tt_global_entry =
-                                kmalloc(sizeof(struct tt_global_entry),
-                                        GFP_ATOMIC);
+                        tt_global_entry = kmalloc(sizeof(*tt_global_entry),
+                                                  GFP_ATOMIC);
 
                         if (!tt_global_entry)
                                 break;
diff --git a/net/batman-adv/unicast.c b/net/batman-adv/unicast.c
index 82717fd9661d..6eabf42f8822 100644
--- a/net/batman-adv/unicast.c
+++ b/net/batman-adv/unicast.c
@@ -39,8 +39,8 @@ static struct sk_buff *frag_merge_packet(struct list_head *head,
                 (struct unicast_frag_packet *)skb->data;
         struct sk_buff *tmp_skb;
         struct unicast_packet *unicast_packet;
-        int hdr_len = sizeof(struct unicast_packet);
-        int uni_diff = sizeof(struct unicast_frag_packet) - hdr_len;
+        int hdr_len = sizeof(*unicast_packet);
+        int uni_diff = sizeof(*up) - hdr_len;
 
         /* set skb to the first part and tmp_skb to the second part */
         if (up->flags & UNI_FRAG_HEAD) {
@@ -53,7 +53,7 @@ static struct sk_buff *frag_merge_packet(struct list_head *head,
         if (skb_linearize(skb) < 0 || skb_linearize(tmp_skb) < 0)
                 goto err;
 
-        skb_pull(tmp_skb, sizeof(struct unicast_frag_packet));
+        skb_pull(tmp_skb, sizeof(*up));
         if (pskb_expand_head(skb, 0, tmp_skb->len, GFP_ATOMIC) < 0)
                 goto err;
 
@@ -99,8 +99,7 @@ static int frag_create_buffer(struct list_head *head)
         struct frag_packet_list_entry *tfp;
 
         for (i = 0; i < FRAG_BUFFER_SIZE; i++) {
-                tfp = kmalloc(sizeof(struct frag_packet_list_entry),
-                        GFP_ATOMIC);
+                tfp = kmalloc(sizeof(*tfp), GFP_ATOMIC);
                 if (!tfp) {
                         frag_list_free(head);
                         return -ENOMEM;
@@ -224,8 +223,8 @@ int frag_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv,
         struct hard_iface *primary_if;
         struct sk_buff *frag_skb;
         struct unicast_frag_packet *frag1, *frag2;
-        int uc_hdr_len = sizeof(struct unicast_packet);
-        int ucf_hdr_len = sizeof(struct unicast_frag_packet);
+        int uc_hdr_len = sizeof(*unicast_packet);
+        int ucf_hdr_len = sizeof(*frag1);
         int data_len = skb->len - uc_hdr_len;
         int large_tail = 0, ret = NET_RX_DROP;
         uint16_t seqno;
@@ -250,14 +249,14 @@ int frag_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv,
         frag1 = (struct unicast_frag_packet *)skb->data;
         frag2 = (struct unicast_frag_packet *)frag_skb->data;
 
-        memcpy(frag1, &tmp_uc, sizeof(struct unicast_packet));
+        memcpy(frag1, &tmp_uc, sizeof(tmp_uc));
 
         frag1->ttl--;
         frag1->version = COMPAT_VERSION;
         frag1->packet_type = BAT_UNICAST_FRAG;
 
         memcpy(frag1->orig, primary_if->net_dev->dev_addr, ETH_ALEN);
-        memcpy(frag2, frag1, sizeof(struct unicast_frag_packet));
+        memcpy(frag2, frag1, sizeof(*frag2));
 
         if (data_len & 1)
                 large_tail = UNI_FRAG_LARGETAIL;
@@ -314,7 +313,7 @@ find_router:
         if (!neigh_node)
                 goto out;
 
-        if (my_skb_head_push(skb, sizeof(struct unicast_packet)) < 0)
+        if (my_skb_head_push(skb, sizeof(*unicast_packet)) < 0)
                 goto out;
 
         unicast_packet = (struct unicast_packet *)skb->data;
@@ -328,7 +327,7 @@ find_router:
         memcpy(unicast_packet->dest, orig_node->orig, ETH_ALEN);
 
         if (atomic_read(&bat_priv->fragmentation) &&
-            data_len + sizeof(struct unicast_packet) >
+            data_len + sizeof(*unicast_packet) >
                                 neigh_node->if_incoming->net_dev->mtu) {
                 /* send frag skb decreases ttl */
                 unicast_packet->ttl++;
diff --git a/net/batman-adv/unicast.h b/net/batman-adv/unicast.h
index 2ba867cf4135..62f54b954625 100644
--- a/net/batman-adv/unicast.h
+++ b/net/batman-adv/unicast.h
@@ -49,7 +49,7 @@ static inline int frag_can_reassemble(const struct sk_buff *skb, int mtu)
                         uneven_correction = -1;
         }
 
-        merged_size = (skb->len - sizeof(struct unicast_frag_packet)) * 2;
+        merged_size = (skb->len - sizeof(*unicast_packet)) * 2;
         merged_size += sizeof(struct unicast_packet) + uneven_correction;
 
         return merged_size <= mtu;
diff --git a/net/batman-adv/vis.c b/net/batman-adv/vis.c
index b48954cd1e12..ea8d7e91fcac 100644
--- a/net/batman-adv/vis.c
+++ b/net/batman-adv/vis.c
@@ -241,7 +241,7 @@ int vis_seq_print_text(struct seq_file *seq, void *offset)
                 hlist_for_each_entry_rcu(info, node, head, hash_entry) {
                         packet = (struct vis_packet *)info->skb_packet->data;
                         entries = (struct vis_info_entry *)
-                                ((char *)packet + sizeof(struct vis_packet));
+                                ((char *)packet + sizeof(*packet));
 
                         for (j = 0; j < packet->entries; j++) {
                                 if (entries[j].quality == 0)
@@ -289,7 +289,7 @@ int vis_seq_print_text(struct seq_file *seq, void *offset)
                 hlist_for_each_entry_rcu(info, node, head, hash_entry) {
                         packet = (struct vis_packet *)info->skb_packet->data;
                         entries = (struct vis_info_entry *)
-                                ((char *)packet + sizeof(struct vis_packet));
+                                ((char *)packet + sizeof(*packet));
 
                         for (j = 0; j < packet->entries; j++) {
                                 if (entries[j].quality == 0)
@@ -367,7 +367,7 @@ static void recv_list_add(struct bat_priv *bat_priv,
 {
         struct recvlist_node *entry;
 
-        entry = kmalloc(sizeof(struct recvlist_node), GFP_ATOMIC);
+        entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
         if (!entry)
                 return;
 
@@ -414,11 +414,11 @@ static struct vis_info *add_packet(struct bat_priv *bat_priv,
                 return NULL;
 
         /* see if the packet is already in vis_hash */
-        search_elem.skb_packet = dev_alloc_skb(sizeof(struct vis_packet));
+        search_elem.skb_packet = dev_alloc_skb(sizeof(*search_packet));
         if (!search_elem.skb_packet)
                 return NULL;
         search_packet = (struct vis_packet *)skb_put(search_elem.skb_packet,
-                                                     sizeof(struct vis_packet));
+                                                     sizeof(*search_packet));
 
         memcpy(search_packet->vis_orig, vis_packet->vis_orig, ETH_ALEN);
         old_info = vis_hash_find(bat_priv, &search_elem);
@@ -444,27 +444,26 @@ static struct vis_info *add_packet(struct bat_priv *bat_priv,
                 kref_put(&old_info->refcount, free_info);
         }
 
-        info = kmalloc(sizeof(struct vis_info), GFP_ATOMIC);
+        info = kmalloc(sizeof(*info), GFP_ATOMIC);
         if (!info)
                 return NULL;
 
-        info->skb_packet = dev_alloc_skb(sizeof(struct vis_packet) +
-                                         vis_info_len + sizeof(struct ethhdr));
+        info->skb_packet = dev_alloc_skb(sizeof(*packet) + vis_info_len +
+                                         sizeof(struct ethhdr));
         if (!info->skb_packet) {
                 kfree(info);
                 return NULL;
         }
         skb_reserve(info->skb_packet, sizeof(struct ethhdr));
-        packet = (struct vis_packet *)skb_put(info->skb_packet,
-                                              sizeof(struct vis_packet) +
-                                              vis_info_len);
+        packet = (struct vis_packet *)skb_put(info->skb_packet, sizeof(*packet)
+                                              + vis_info_len);
 
         kref_init(&info->refcount);
         INIT_LIST_HEAD(&info->send_list);
         INIT_LIST_HEAD(&info->recv_list);
         info->first_seen = jiffies;
         info->bat_priv = bat_priv;
-        memcpy(packet, vis_packet, sizeof(struct vis_packet) + vis_info_len);
+        memcpy(packet, vis_packet, sizeof(*packet) + vis_info_len);
 
         /* initialize and add new packet. */
         *is_new = 1;
@@ -634,7 +633,7 @@ static int generate_vis_packet(struct bat_priv *bat_priv)
         packet->ttl = TTL;
         packet->seqno = htonl(ntohl(packet->seqno) + 1);
         packet->entries = 0;
-        skb_trim(info->skb_packet, sizeof(struct vis_packet));
+        skb_trim(info->skb_packet, sizeof(*packet));
 
         if (packet->vis_type == VIS_TYPE_CLIENT_UPDATE) {
                 best_tq = find_best_vis_server(bat_priv, info);
@@ -910,17 +909,15 @@ int vis_init(struct bat_priv *bat_priv)
                 goto err;
         }
 
-        bat_priv->my_vis_info->skb_packet = dev_alloc_skb(
-                                                sizeof(struct vis_packet) +
-                                                MAX_VIS_PACKET_SIZE +
-                                                sizeof(struct ethhdr));
+        bat_priv->my_vis_info->skb_packet = dev_alloc_skb(sizeof(*packet) +
+                                                          MAX_VIS_PACKET_SIZE +
+                                                         sizeof(struct ethhdr));
         if (!bat_priv->my_vis_info->skb_packet)
                 goto free_info;
 
         skb_reserve(bat_priv->my_vis_info->skb_packet, sizeof(struct ethhdr));
-        packet = (struct vis_packet *)skb_put(
-                                        bat_priv->my_vis_info->skb_packet,
-                                        sizeof(struct vis_packet));
+        packet = (struct vis_packet *)skb_put(bat_priv->my_vis_info->skb_packet,
+                                              sizeof(*packet));
 
         /* prefill the vis info */
         bat_priv->my_vis_info->first_seen = jiffies -