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 --- net/batman-adv/bat_iv_ogm.c | 6 +++--- net/batman-adv/icmp_socket.c | 4 ++-- net/batman-adv/translation-table.c | 20 ++++++++++---------- net/batman-adv/vis.c | 12 ++++++------ 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 42b7a94..5b0a043 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 0ba6c89..b27508b 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 d35b739..52808c4 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 1625e57..94eaeb5 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));