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authorJason Lunz <lunz@falooley.org>2007-02-20 23:19:54 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2007-02-26 11:42:45 -0800
commitad930650c0e694233971c56e8de8e78b896e2613 (patch)
treec14d67f354f8d8d93cd1e160f196e08474d43061 /net/packet
parentca17c23345308a8692a65a0cca363d9108a665ca (diff)
downloadlinux-ad930650c0e694233971c56e8de8e78b896e2613.tar.bz2
[AF_PACKET]: Remove unnecessary casts.
packet_lookup_frame() always returns tpacket_hdr*, so there's no reason to return char* and require casting by callers. Also, remove a cast of void*. Signed-off-by: Jason Lunz <lunz@falooley.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/packet')
-rw-r--r--net/packet/af_packet.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index bf2699074774..28d47e8f2873 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -227,17 +227,14 @@ struct packet_skb_cb {
#ifdef CONFIG_PACKET_MMAP
-static inline char *packet_lookup_frame(struct packet_sock *po, unsigned int position)
+static inline struct tpacket_hdr *packet_lookup_frame(struct packet_sock *po, unsigned int position)
{
unsigned int pg_vec_pos, frame_offset;
- char *frame;
pg_vec_pos = position / po->frames_per_block;
frame_offset = position % po->frames_per_block;
- frame = po->pg_vec[pg_vec_pos] + (frame_offset * po->frame_size);
-
- return frame;
+ return (struct tpacket_hdr *)(po->pg_vec[pg_vec_pos] + (frame_offset * po->frame_size));
}
#endif
@@ -639,7 +636,7 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, struct packe
}
spin_lock(&sk->sk_receive_queue.lock);
- h = (struct tpacket_hdr *)packet_lookup_frame(po, po->head);
+ h = packet_lookup_frame(po, po->head);
if (h->tp_status)
goto ring_is_full;
@@ -1473,7 +1470,7 @@ static int packet_notifier(struct notifier_block *this, unsigned long msg, void
{
struct sock *sk;
struct hlist_node *node;
- struct net_device *dev = (struct net_device*)data;
+ struct net_device *dev = data;
read_lock(&packet_sklist_lock);
sk_for_each(sk, node, &packet_sklist) {
@@ -1588,7 +1585,7 @@ static unsigned int packet_poll(struct file * file, struct socket *sock,
unsigned last = po->head ? po->head-1 : po->frame_max;
struct tpacket_hdr *h;
- h = (struct tpacket_hdr *)packet_lookup_frame(po, last);
+ h = packet_lookup_frame(po, last);
if (h->tp_status)
mask |= POLLIN | POLLRDNORM;