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authorEric Dumazet <eric.dumazet@gmail.com>2009-07-21 21:57:59 +0000
committerDavid S. Miller <davem@davemloft.net>2009-07-23 18:01:10 -0700
commit40d4e3dfc2f56ad85ecca29c7f9a0194bbb833c0 (patch)
tree3273e0f2f7081dd08092ca0e9100e6a8ee6fe94d /net/packet
parentc9a73cdb772a487b2c59c2711ad8b10d58cbaca8 (diff)
downloadlinux-40d4e3dfc2f56ad85ecca29c7f9a0194bbb833c0.tar.bz2
af_packet: style cleanups
Some style cleanups to match current code practices. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/packet')
-rw-r--r--net/packet/af_packet.c246
1 files changed, 122 insertions, 124 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index ebe5718baa31..d3d52c66cdc2 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -137,8 +137,7 @@ dev->hard_header == NULL (ll header is added by device, we cannot control it)
/* Private packet socket structures. */
-struct packet_mclist
-{
+struct packet_mclist {
struct packet_mclist *next;
int ifindex;
int count;
@@ -149,8 +148,7 @@ struct packet_mclist
/* identical to struct packet_mreq except it has
* a longer address field.
*/
-struct packet_mreq_max
-{
+struct packet_mreq_max {
int mr_ifindex;
unsigned short mr_type;
unsigned short mr_alen;
@@ -162,7 +160,7 @@ static int packet_set_ring(struct sock *sk, struct tpacket_req *req,
int closing, int tx_ring);
struct packet_ring_buffer {
- char * *pg_vec;
+ char **pg_vec;
unsigned int head;
unsigned int frames_per_block;
unsigned int frame_size;
@@ -239,7 +237,7 @@ static void __packet_set_status(struct packet_sock *po, void *frame, int status)
flush_dcache_page(virt_to_page(&h.h2->tp_status));
break;
default:
- printk(KERN_ERR "TPACKET version not supported\n");
+ pr_err("TPACKET version not supported\n");
BUG();
}
@@ -265,7 +263,7 @@ static int __packet_get_status(struct packet_sock *po, void *frame)
flush_dcache_page(virt_to_page(&h.h2->tp_status));
return h.h2->tp_status;
default:
- printk(KERN_ERR "TPACKET version not supported\n");
+ pr_err("TPACKET version not supported\n");
BUG();
return 0;
}
@@ -327,7 +325,7 @@ static void packet_sock_destruct(struct sock *sk)
WARN_ON(atomic_read(&sk->sk_wmem_alloc));
if (!sock_flag(sk, SOCK_DEAD)) {
- printk("Attempt to release alive packet socket: %p\n", sk);
+ pr_err("Attempt to release alive packet socket: %p\n", sk);
return;
}
@@ -339,7 +337,8 @@ static const struct proto_ops packet_ops;
static const struct proto_ops packet_ops_spkt;
-static int packet_rcv_spkt(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev)
+static int packet_rcv_spkt(struct sk_buff *skb, struct net_device *dev,
+ struct packet_type *pt, struct net_device *orig_dev)
{
struct sock *sk;
struct sockaddr_pkt *spkt;
@@ -368,7 +367,8 @@ static int packet_rcv_spkt(struct sk_buff *skb, struct net_device *dev, struct
if (dev_net(dev) != sock_net(sk))
goto out;
- if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL)
+ skb = skb_share_check(skb, GFP_ATOMIC);
+ if (skb == NULL)
goto oom;
/* drop any routing info */
@@ -394,7 +394,7 @@ static int packet_rcv_spkt(struct sk_buff *skb, struct net_device *dev, struct
* to prevent sockets using all the memory up.
*/
- if (sock_queue_rcv_skb(sk,skb) == 0)
+ if (sock_queue_rcv_skb(sk, skb) == 0)
return 0;
out:
@@ -413,25 +413,23 @@ static int packet_sendmsg_spkt(struct kiocb *iocb, struct socket *sock,
struct msghdr *msg, size_t len)
{
struct sock *sk = sock->sk;
- struct sockaddr_pkt *saddr=(struct sockaddr_pkt *)msg->msg_name;
+ struct sockaddr_pkt *saddr = (struct sockaddr_pkt *)msg->msg_name;
struct sk_buff *skb;
struct net_device *dev;
- __be16 proto=0;
+ __be16 proto = 0;
int err;
/*
* Get and verify the address.
*/
- if (saddr)
- {
+ if (saddr) {
if (msg->msg_namelen < sizeof(struct sockaddr))
- return(-EINVAL);
- if (msg->msg_namelen==sizeof(struct sockaddr_pkt))
- proto=saddr->spkt_protocol;
- }
- else
- return(-ENOTCONN); /* SOCK_PACKET must be sent giving an address */
+ return -EINVAL;
+ if (msg->msg_namelen == sizeof(struct sockaddr_pkt))
+ proto = saddr->spkt_protocol;
+ } else
+ return -ENOTCONN; /* SOCK_PACKET must be sent giving an address */
/*
* Find the device first to size check it
@@ -448,8 +446,8 @@ static int packet_sendmsg_spkt(struct kiocb *iocb, struct socket *sock,
goto out_unlock;
/*
- * You may not queue a frame bigger than the mtu. This is the lowest level
- * raw protocol and you must do your own fragmentation at this level.
+ * You may not queue a frame bigger than the mtu. This is the lowest level
+ * raw protocol and you must do your own fragmentation at this level.
*/
err = -EMSGSIZE;
@@ -460,9 +458,9 @@ static int packet_sendmsg_spkt(struct kiocb *iocb, struct socket *sock,
skb = sock_wmalloc(sk, len + LL_RESERVED_SPACE(dev), 0, GFP_KERNEL);
/*
- * If the write buffer is full, then tough. At this level the user gets to
- * deal with the problem - do your own algorithmic backoffs. That's far
- * more flexible.
+ * If the write buffer is full, then tough. At this level the user
+ * gets to deal with the problem - do your own algorithmic backoffs.
+ * That's far more flexible.
*/
if (skb == NULL)
@@ -488,7 +486,7 @@ static int packet_sendmsg_spkt(struct kiocb *iocb, struct socket *sock,
}
/* Returns -EFAULT on error */
- err = memcpy_fromiovec(skb_put(skb,len), msg->msg_iov, len);
+ err = memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len);
skb->protocol = proto;
skb->dev = dev;
skb->priority = sk->sk_priority;
@@ -501,7 +499,7 @@ static int packet_sendmsg_spkt(struct kiocb *iocb, struct socket *sock,
dev_queue_xmit(skb);
dev_put(dev);
- return(len);
+ return len;
out_free:
kfree_skb(skb);
@@ -537,12 +535,13 @@ static inline unsigned int run_filter(struct sk_buff *skb, struct sock *sk,
we will not harm anyone.
*/
-static int packet_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev)
+static int packet_rcv(struct sk_buff *skb, struct net_device *dev,
+ struct packet_type *pt, struct net_device *orig_dev)
{
struct sock *sk;
struct sockaddr_ll *sll;
struct packet_sock *po;
- u8 * skb_head = skb->data;
+ u8 *skb_head = skb->data;
int skb_len = skb->len;
unsigned int snaplen, res;
@@ -648,7 +647,8 @@ drop:
}
#ifdef CONFIG_PACKET_MMAP
-static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev)
+static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev,
+ struct packet_type *pt, struct net_device *orig_dev)
{
struct sock *sk;
struct packet_sock *po;
@@ -658,7 +658,7 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, struct packe
struct tpacket2_hdr *h2;
void *raw;
} h;
- u8 * skb_head = skb->data;
+ u8 *skb_head = skb->data;
int skb_len = skb->len;
unsigned int snaplen, res;
unsigned long status = TP_STATUS_LOSING|TP_STATUS_USER;
@@ -821,7 +821,7 @@ ring_is_full:
static void tpacket_destruct_skb(struct sk_buff *skb)
{
struct packet_sock *po = pkt_sk(skb->sk);
- void * ph;
+ void *ph;
BUG_ON(skb == NULL);
@@ -836,9 +836,9 @@ static void tpacket_destruct_skb(struct sk_buff *skb)
sock_wfree(skb);
}
-static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff * skb,
- void * frame, struct net_device *dev, int size_max,
- __be16 proto, unsigned char * addr)
+static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff *skb,
+ void *frame, struct net_device *dev, int size_max,
+ __be16 proto, unsigned char *addr)
{
union {
struct tpacket_hdr *h1;
@@ -867,8 +867,7 @@ static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff * skb,
break;
}
if (unlikely(tp_len > size_max)) {
- printk(KERN_ERR "packet size is too long (%d > %d)\n",
- tp_len, size_max);
+ pr_err("packet size is too long (%d > %d)\n", tp_len, size_max);
return -EMSGSIZE;
}
@@ -883,12 +882,11 @@ static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff * skb,
NULL, tp_len);
if (unlikely(err < 0))
return -EINVAL;
- } else if (dev->hard_header_len ) {
+ } else if (dev->hard_header_len) {
/* net device doesn't like empty head */
if (unlikely(tp_len <= dev->hard_header_len)) {
- printk(KERN_ERR "packet size is too short "
- "(%d < %d)\n", tp_len,
- dev->hard_header_len);
+ pr_err("packet size is too short (%d < %d)\n",
+ tp_len, dev->hard_header_len);
return -EINVAL;
}
@@ -917,9 +915,8 @@ static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff * skb,
nr_frags = skb_shinfo(skb)->nr_frags;
if (unlikely(nr_frags >= MAX_SKB_FRAGS)) {
- printk(KERN_ERR "Packet exceed the number "
- "of skb frags(%lu)\n",
- MAX_SKB_FRAGS);
+ pr_err("Packet exceed the number of skb frags(%lu)\n",
+ MAX_SKB_FRAGS);
return -EFAULT;
}
@@ -944,8 +941,8 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
struct net_device *dev;
__be16 proto;
int ifindex, err, reserve = 0;
- void * ph;
- struct sockaddr_ll *saddr=(struct sockaddr_ll *)msg->msg_name;
+ void *ph;
+ struct sockaddr_ll *saddr = (struct sockaddr_ll *)msg->msg_name;
int tp_len, size_max;
unsigned char *addr;
int len_sum = 0;
@@ -1038,8 +1035,7 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
goto out_xmit;
packet_increment_head(&po->tx_ring);
len_sum += tp_len;
- }
- while (likely((ph != NULL) || ((!(msg->msg_flags & MSG_DONTWAIT))
+ } while (likely((ph != NULL) || ((!(msg->msg_flags & MSG_DONTWAIT))
&& (atomic_read(&po->tx_ring.pending))))
);
@@ -1064,7 +1060,7 @@ static int packet_snd(struct socket *sock,
struct msghdr *msg, size_t len)
{
struct sock *sk = sock->sk;
- struct sockaddr_ll *saddr=(struct sockaddr_ll *)msg->msg_name;
+ struct sockaddr_ll *saddr = (struct sockaddr_ll *)msg->msg_name;
struct sk_buff *skb;
struct net_device *dev;
__be16 proto;
@@ -1110,7 +1106,7 @@ static int packet_snd(struct socket *sock,
skb = sock_alloc_send_skb(sk, len + LL_ALLOCATED_SPACE(dev),
msg->msg_flags & MSG_DONTWAIT, &err);
- if (skb==NULL)
+ if (skb == NULL)
goto out_unlock;
skb_reserve(skb, LL_RESERVED_SPACE(dev));
@@ -1122,7 +1118,7 @@ static int packet_snd(struct socket *sock,
goto out_free;
/* Returns -EFAULT on error */
- err = memcpy_fromiovec(skb_put(skb,len), msg->msg_iov, len);
+ err = memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len);
if (err)
goto out_free;
@@ -1140,7 +1136,7 @@ static int packet_snd(struct socket *sock,
dev_put(dev);
- return(len);
+ return len;
out_free:
kfree_skb(skb);
@@ -1283,9 +1279,10 @@ out_unlock:
* Bind a packet socket to a device
*/
-static int packet_bind_spkt(struct socket *sock, struct sockaddr *uaddr, int addr_len)
+static int packet_bind_spkt(struct socket *sock, struct sockaddr *uaddr,
+ int addr_len)
{
- struct sock *sk=sock->sk;
+ struct sock *sk = sock->sk;
char name[15];
struct net_device *dev;
int err = -ENODEV;
@@ -1296,7 +1293,7 @@ static int packet_bind_spkt(struct socket *sock, struct sockaddr *uaddr, int add
if (addr_len != sizeof(struct sockaddr))
return -EINVAL;
- strlcpy(name,uaddr->sa_data,sizeof(name));
+ strlcpy(name, uaddr->sa_data, sizeof(name));
dev = dev_get_by_name(sock_net(sk), name);
if (dev) {
@@ -1308,8 +1305,8 @@ static int packet_bind_spkt(struct socket *sock, struct sockaddr *uaddr, int add
static int packet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
{
- struct sockaddr_ll *sll = (struct sockaddr_ll*)uaddr;
- struct sock *sk=sock->sk;
+ struct sockaddr_ll *sll = (struct sockaddr_ll *)uaddr;
+ struct sock *sk = sock->sk;
struct net_device *dev = NULL;
int err;
@@ -1404,7 +1401,7 @@ static int packet_create(struct net *net, struct socket *sock, int protocol)
sk_add_node(sk, &net->packet.sklist);
sock_prot_inuse_add(net, &packet_proto, 1);
write_unlock_bh(&net->packet.sklist_lock);
- return(0);
+ return 0;
out:
return err;
}
@@ -1441,7 +1438,7 @@ static int packet_recvmsg(struct kiocb *iocb, struct socket *sock,
* but then it will block.
*/
- skb=skb_recv_datagram(sk,flags,flags&MSG_DONTWAIT,&err);
+ skb = skb_recv_datagram(sk, flags, flags & MSG_DONTWAIT, &err);
/*
* An error occurred so return it. Because skb_recv_datagram()
@@ -1469,10 +1466,9 @@ static int packet_recvmsg(struct kiocb *iocb, struct socket *sock,
*/
copied = skb->len;
- if (copied > len)
- {
- copied=len;
- msg->msg_flags|=MSG_TRUNC;
+ if (copied > len) {
+ copied = len;
+ msg->msg_flags |= MSG_TRUNC;
}
err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
@@ -1539,7 +1535,7 @@ static int packet_getname(struct socket *sock, struct sockaddr *uaddr,
struct net_device *dev;
struct sock *sk = sock->sk;
struct packet_sock *po = pkt_sk(sk);
- struct sockaddr_ll *sll = (struct sockaddr_ll*)uaddr;
+ struct sockaddr_ll *sll = (struct sockaddr_ll *)uaddr;
if (peer)
return -EOPNOTSUPP;
@@ -1584,14 +1580,15 @@ static int packet_dev_mc(struct net_device *dev, struct packet_mclist *i,
else
return dev_unicast_delete(dev, i->addr);
break;
- default:;
+ default:
+ break;
}
return 0;
}
static void packet_dev_mclist(struct net_device *dev, struct packet_mclist *i, int what)
{
- for ( ; i; i=i->next) {
+ for ( ; i; i = i->next) {
if (i->ifindex == dev->ifindex)
packet_dev_mc(dev, i, what);
}
@@ -1693,7 +1690,8 @@ static void packet_flush_mclist(struct sock *sk)
struct net_device *dev;
po->mclist = ml->next;
- if ((dev = dev_get_by_index(sock_net(sk), ml->ifindex)) != NULL) {
+ dev = dev_get_by_index(sock_net(sk), ml->ifindex);
+ if (dev != NULL) {
packet_dev_mc(dev, ml, -1);
dev_put(dev);
}
@@ -1723,7 +1721,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv
return -EINVAL;
if (len > sizeof(mreq))
len = sizeof(mreq);
- if (copy_from_user(&mreq,optval,len))
+ if (copy_from_user(&mreq, optval, len))
return -EFAULT;
if (len < (mreq.mr_alen + offsetof(struct packet_mreq, mr_address)))
return -EINVAL;
@@ -1740,9 +1738,9 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv
{
struct tpacket_req req;
- if (optlen<sizeof(req))
+ if (optlen < sizeof(req))
return -EINVAL;
- if (copy_from_user(&req,optval,sizeof(req)))
+ if (copy_from_user(&req, optval, sizeof(req)))
return -EFAULT;
return packet_set_ring(sk, &req, 0, optname == PACKET_TX_RING);
}
@@ -1750,9 +1748,9 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv
{
int val;
- if (optlen!=sizeof(val))
+ if (optlen != sizeof(val))
return -EINVAL;
- if (copy_from_user(&val,optval,sizeof(val)))
+ if (copy_from_user(&val, optval, sizeof(val)))
return -EFAULT;
pkt_sk(sk)->copy_thresh = val;
@@ -1985,51 +1983,51 @@ static int packet_ioctl(struct socket *sock, unsigned int cmd,
struct sock *sk = sock->sk;
switch (cmd) {
- case SIOCOUTQ:
- {
- int amount = sk_wmem_alloc_get(sk);
+ case SIOCOUTQ:
+ {
+ int amount = sk_wmem_alloc_get(sk);
- return put_user(amount, (int __user *)arg);
- }
- case SIOCINQ:
- {
- struct sk_buff *skb;
- int amount = 0;
-
- spin_lock_bh(&sk->sk_receive_queue.lock);
- skb = skb_peek(&sk->sk_receive_queue);
- if (skb)
- amount = skb->len;
- spin_unlock_bh(&sk->sk_receive_queue.lock);
- return put_user(amount, (int __user *)arg);
- }
- case SIOCGSTAMP:
- return sock_get_timestamp(sk, (struct timeval __user *)arg);
- case SIOCGSTAMPNS:
- return sock_get_timestampns(sk, (struct timespec __user *)arg);
+ return put_user(amount, (int __user *)arg);
+ }
+ case SIOCINQ:
+ {
+ struct sk_buff *skb;
+ int amount = 0;
+
+ spin_lock_bh(&sk->sk_receive_queue.lock);
+ skb = skb_peek(&sk->sk_receive_queue);
+ if (skb)
+ amount = skb->len;
+ spin_unlock_bh(&sk->sk_receive_queue.lock);
+ return put_user(amount, (int __user *)arg);
+ }
+ case SIOCGSTAMP:
+ return sock_get_timestamp(sk, (struct timeval __user *)arg);
+ case SIOCGSTAMPNS:
+ return sock_get_timestampns(sk, (struct timespec __user *)arg);
#ifdef CONFIG_INET
- case SIOCADDRT:
- case SIOCDELRT:
- case SIOCDARP:
- case SIOCGARP:
- case SIOCSARP:
- case SIOCGIFADDR:
- case SIOCSIFADDR:
- case SIOCGIFBRDADDR:
- case SIOCSIFBRDADDR:
- case SIOCGIFNETMASK:
- case SIOCSIFNETMASK:
- case SIOCGIFDSTADDR:
- case SIOCSIFDSTADDR:
- case SIOCSIFFLAGS:
- if (!net_eq(sock_net(sk), &init_net))
- return -ENOIOCTLCMD;
- return inet_dgram_ops.ioctl(sock, cmd, arg);
+ case SIOCADDRT:
+ case SIOCDELRT:
+ case SIOCDARP:
+ case SIOCGARP:
+ case SIOCSARP:
+ case SIOCGIFADDR:
+ case SIOCSIFADDR:
+ case SIOCGIFBRDADDR:
+ case SIOCSIFBRDADDR:
+ case SIOCGIFNETMASK:
+ case SIOCSIFNETMASK:
+ case SIOCGIFDSTADDR:
+ case SIOCSIFDSTADDR:
+ case SIOCSIFFLAGS:
+ if (!net_eq(sock_net(sk), &init_net))
+ return -ENOIOCTLCMD;
+ return inet_dgram_ops.ioctl(sock, cmd, arg);
#endif
- default:
- return -ENOIOCTLCMD;
+ default:
+ return -ENOIOCTLCMD;
}
return 0;
}
@@ -2039,7 +2037,7 @@ static int packet_ioctl(struct socket *sock, unsigned int cmd,
#define packet_poll datagram_poll
#else
-static unsigned int packet_poll(struct file * file, struct socket *sock,
+static unsigned int packet_poll(struct file *file, struct socket *sock,
poll_table *wait)
{
struct sock *sk = sock->sk;
@@ -2069,7 +2067,7 @@ static unsigned int packet_poll(struct file * file, struct socket *sock,
static void packet_mm_open(struct vm_area_struct *vma)
{
struct file *file = vma->vm_file;
- struct socket * sock = file->private_data;
+ struct socket *sock = file->private_data;
struct sock *sk = sock->sk;
if (sk)
@@ -2079,7 +2077,7 @@ static void packet_mm_open(struct vm_area_struct *vma)
static void packet_mm_close(struct vm_area_struct *vma)
{
struct file *file = vma->vm_file;
- struct socket * sock = file->private_data;
+ struct socket *sock = file->private_data;
struct sock *sk = sock->sk;
if (sk)
@@ -2087,8 +2085,8 @@ static void packet_mm_close(struct vm_area_struct *vma)
}
static struct vm_operations_struct packet_mmap_ops = {
- .open = packet_mm_open,
- .close =packet_mm_close,
+ .open = packet_mm_open,
+ .close = packet_mm_close,
};
static void free_pg_vec(char **pg_vec, unsigned int order, unsigned int len)
@@ -2239,8 +2237,8 @@ static int packet_set_ring(struct sock *sk, struct tpacket_req *req,
skb_queue_purge(rb_queue);
#undef XC
if (atomic_read(&po->mapped))
- printk(KERN_DEBUG "packet_mmap: vma is busy: %d\n",
- atomic_read(&po->mapped));
+ pr_err("packet_mmap: vma is busy: %d\n",
+ atomic_read(&po->mapped));
}
mutex_unlock(&po->pg_vec_lock);
@@ -2303,7 +2301,7 @@ static int packet_mmap(struct file *file, struct socket *sock,
int pg_num;
for (pg_num = 0; pg_num < rb->pg_vec_pages;
- pg_num++,page++) {
+ pg_num++, page++) {
err = vm_insert_page(vma, start, page);
if (unlikely(err))
goto out;
@@ -2372,7 +2370,7 @@ static struct net_proto_family packet_family_ops = {
};
static struct notifier_block packet_netdev_notifier = {
- .notifier_call =packet_notifier,
+ .notifier_call = packet_notifier,
};
#ifdef CONFIG_PROC_FS
@@ -2402,7 +2400,7 @@ static void *packet_seq_next(struct seq_file *seq, void *v, loff_t *pos)
++*pos;
return (v == SEQ_START_TOKEN)
? sk_head(&net->packet.sklist)
- : sk_next((struct sock*)v) ;
+ : sk_next((struct sock *)v) ;
}
static void packet_seq_stop(struct seq_file *seq, void *v)
@@ -2430,7 +2428,7 @@ static int packet_seq_show(struct seq_file *seq, void *v)
po->running,
atomic_read(&s->sk_rmem_alloc),
sock_i_uid(s),
- sock_i_ino(s) );
+ sock_i_ino(s));
}
return 0;