batman-adv: don't deal with NET_IP_ALIGN manually

Instead of dealing with NET_IP_ALIGN during allocation and
headroom reservation, it is possible to use
netdev_alloc_skb_ip_align() which transparently allocate
and reserve the correct amount of data

Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

4 files changed, 21 insertions, 21 deletions

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 42b7a94d61b3..5b0a043c47c8 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -453,16 +453,16 @@ static void batadv_iv_ogm_aggregate_new(const unsigned char *packet_buff,
         else
                 skb_size = packet_len;
 
-        skb_size += ETH_HLEN + NET_IP_ALIGN;
+        skb_size += ETH_HLEN;
 
-        forw_packet_aggr->skb = dev_alloc_skb(skb_size);
+        forw_packet_aggr->skb = netdev_alloc_skb_ip_align(NULL, skb_size);
         if (!forw_packet_aggr->skb) {
                 if (!own_packet)
                         atomic_inc(&bat_priv->batman_queue_left);
                 kfree(forw_packet_aggr);
                 goto out;
         }
-        skb_reserve(forw_packet_aggr->skb, ETH_HLEN + NET_IP_ALIGN);
+        skb_reserve(forw_packet_aggr->skb, ETH_HLEN);
 
         INIT_HLIST_NODE(&forw_packet_aggr->list);
 
diff --git a/net/batman-adv/icmp_socket.c b/net/batman-adv/icmp_socket.c
index 0ba6c899b2d3..b27508b8085c 100644
--- a/net/batman-adv/icmp_socket.c
+++ b/net/batman-adv/icmp_socket.c
@@ -177,13 +177,13 @@ static ssize_t batadv_socket_write(struct file *file, const char __user *buff,
         if (len >= sizeof(struct batadv_icmp_packet_rr))
                 packet_len = sizeof(struct batadv_icmp_packet_rr);
 
-        skb = dev_alloc_skb(packet_len + ETH_HLEN + NET_IP_ALIGN);
+        skb = netdev_alloc_skb_ip_align(NULL, packet_len + ETH_HLEN);
         if (!skb) {
                 len = -ENOMEM;
                 goto out;
         }
 
-        skb_reserve(skb, ETH_HLEN + NET_IP_ALIGN);
+        skb_reserve(skb, ETH_HLEN);
         icmp_packet = (struct batadv_icmp_packet_rr *)skb_put(skb, packet_len);
 
         if (copy_from_user(icmp_packet, buff, packet_len)) {
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index d35b73904e04..52808c4ae081 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -1607,11 +1607,11 @@ batadv_tt_response_fill_table(uint16_t tt_len, uint8_t ttvn,
         tt_tot = tt_len / sizeof(struct batadv_tt_change);
 
         len = tt_query_size + tt_len;
-        skb = dev_alloc_skb(len + ETH_HLEN + NET_IP_ALIGN);
+        skb = netdev_alloc_skb_ip_align(NULL, len + ETH_HLEN);
         if (!skb)
                 goto out;
 
-        skb_reserve(skb, ETH_HLEN + NET_IP_ALIGN);
+        skb_reserve(skb, ETH_HLEN);
         tt_response = (struct batadv_tt_query_packet *)skb_put(skb, len);
         tt_response->ttvn = ttvn;
 
@@ -1672,11 +1672,11 @@ static int batadv_send_tt_request(struct batadv_priv *bat_priv,
         if (!tt_req_node)
                 goto out;
 
-        skb = dev_alloc_skb(sizeof(*tt_request) + ETH_HLEN + NET_IP_ALIGN);
+        skb = netdev_alloc_skb_ip_align(NULL, sizeof(*tt_request) + ETH_HLEN);
         if (!skb)
                 goto out;
 
-        skb_reserve(skb, ETH_HLEN + NET_IP_ALIGN);
+        skb_reserve(skb, ETH_HLEN);
 
         tt_req_len = sizeof(*tt_request);
         tt_request = (struct batadv_tt_query_packet *)skb_put(skb, tt_req_len);
@@ -1769,11 +1769,11 @@ batadv_send_other_tt_response(struct batadv_priv *bat_priv,
                 tt_tot = tt_len / sizeof(struct batadv_tt_change);
 
                 len = sizeof(*tt_response) + tt_len;
-                skb = dev_alloc_skb(len + ETH_HLEN + NET_IP_ALIGN);
+                skb = netdev_alloc_skb_ip_align(NULL, len + ETH_HLEN);
                 if (!skb)
                         goto unlock;
 
-                skb_reserve(skb, ETH_HLEN + NET_IP_ALIGN);
+                skb_reserve(skb, ETH_HLEN);
                 packet_pos = skb_put(skb, len);
                 tt_response = (struct batadv_tt_query_packet *)packet_pos;
                 tt_response->ttvn = req_ttvn;
@@ -1885,11 +1885,11 @@ batadv_send_my_tt_response(struct batadv_priv *bat_priv,
                 tt_tot = tt_len / sizeof(struct batadv_tt_change);
 
                 len = sizeof(*tt_response) + tt_len;
-                skb = dev_alloc_skb(len + ETH_HLEN + NET_IP_ALIGN);
+                skb = netdev_alloc_skb_ip_align(NULL, len + ETH_HLEN);
                 if (!skb)
                         goto unlock;
 
-                skb_reserve(skb, ETH_HLEN + NET_IP_ALIGN);
+                skb_reserve(skb, ETH_HLEN);
                 packet_pos = skb_put(skb, len);
                 tt_response = (struct batadv_tt_query_packet *)packet_pos;
                 tt_response->ttvn = req_ttvn;
@@ -2219,11 +2219,11 @@ static void batadv_send_roam_adv(struct batadv_priv *bat_priv, uint8_t *client,
         if (!batadv_tt_check_roam_count(bat_priv, client))
                 goto out;
 
-        skb = dev_alloc_skb(sizeof(*roam_adv_packet) + ETH_HLEN + NET_IP_ALIGN);
+        skb = netdev_alloc_skb_ip_align(NULL, len + ETH_HLEN);
         if (!skb)
                 goto out;
 
-        skb_reserve(skb, ETH_HLEN + NET_IP_ALIGN);
+        skb_reserve(skb, ETH_HLEN);
 
         roam_adv_packet = (struct batadv_roam_adv_packet *)skb_put(skb, len);
 
diff --git a/net/batman-adv/vis.c b/net/batman-adv/vis.c
index 1625e5793a89..94eaeb521c17 100644
--- a/net/batman-adv/vis.c
+++ b/net/batman-adv/vis.c
@@ -392,12 +392,12 @@ batadv_add_packet(struct batadv_priv *bat_priv,
                 return NULL;
 
         len = sizeof(*packet) + vis_info_len;
-        info->skb_packet = dev_alloc_skb(len + ETH_HLEN + NET_IP_ALIGN);
+        info->skb_packet = netdev_alloc_skb_ip_align(NULL, len + ETH_HLEN);
         if (!info->skb_packet) {
                 kfree(info);
                 return NULL;
         }
-        skb_reserve(info->skb_packet, ETH_HLEN + NET_IP_ALIGN);
+        skb_reserve(info->skb_packet, ETH_HLEN);
         packet = (struct batadv_vis_packet *)skb_put(info->skb_packet, len);
 
         kref_init(&info->refcount);
@@ -854,13 +854,13 @@ int batadv_vis_init(struct batadv_priv *bat_priv)
         if (!bat_priv->vis.my_info)
                 goto err;
 
-        len = sizeof(*packet) + BATADV_MAX_VIS_PACKET_SIZE;
-        len += ETH_HLEN + NET_IP_ALIGN;
-        bat_priv->vis.my_info->skb_packet = dev_alloc_skb(len);
+        len = sizeof(*packet) + BATADV_MAX_VIS_PACKET_SIZE + ETH_HLEN;
+        bat_priv->vis.my_info->skb_packet = netdev_alloc_skb_ip_align(NULL,
+                                                                      len);
         if (!bat_priv->vis.my_info->skb_packet)
                 goto free_info;
 
-        skb_reserve(bat_priv->vis.my_info->skb_packet, ETH_HLEN + NET_IP_ALIGN);
+        skb_reserve(bat_priv->vis.my_info->skb_packet, ETH_HLEN);
         tmp_skb = bat_priv->vis.my_info->skb_packet;
         packet = (struct batadv_vis_packet *)skb_put(tmp_skb, sizeof(*packet));