From 704509b8d44886cebfbaff1a9813c35dfa986954 Mon Sep 17 00:00:00 2001 From: Sven Eckelmann Date: Sat, 14 May 2011 23:14:54 +0200 Subject: 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 --- net/batman-adv/send.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) (limited to 'net/batman-adv/send.c') 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; -- cgit v1.2.3