af_packet: style cleanups
Subsystems (3)
PATCH 1/1 af_packet: style cleanups
Some style cleanups to match current code practices.
Signed-off-by Eric Dumazet <[email protected]>
--- net/packet/af_packet.c | 246 +++++++++++++++++++-------------------- 1 files changed, 122 insertions(+), 124 deletions(-)
net/packet/af_packet.c +122 -124
@@ -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, structif (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 packestruct 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 addif (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 addstatic 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 *optvreturn -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 XCif (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 ;
From: Eric Dumazet <[email protected]>
Date: Wed, 22 Jul 2009 09:57:59 +0200
Quoted 3 lines
Some style cleanups to match current code practices.
Signed-off-by Eric Dumazet <[email protected]>
Applied, thanks.