diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c index c99fd183f034..7d94fa005b0d 100644 --- a/fs/proc/proc_net.c +++ b/fs/proc/proc_net.c @@ -93,37 +93,50 @@ struct proc_dir_entry *proc_create_net_data(const char *name, umode_t mode, } EXPORT_SYMBOL_GPL(proc_create_net_data); -int single_open_net(struct inode *inode, struct file *file, - int (*show)(struct seq_file *, void *)) +static int single_open_net(struct inode *inode, struct file *file) { - int err; + struct proc_dir_entry *de = PDE(inode); struct net *net; + int err; - err = -ENXIO; net = get_proc_net(inode); - if (net == NULL) - goto err_net; + if (!net) + return -ENXIO; - err = single_open(file, show, net); - if (err < 0) - goto err_open; - - return 0; - -err_open: - put_net(net); -err_net: + err = single_open(file, de->single_show, net); + if (err) + put_net(net); return err; } -EXPORT_SYMBOL_GPL(single_open_net); -int single_release_net(struct inode *ino, struct file *f) +static int single_release_net(struct inode *ino, struct file *f) { struct seq_file *seq = f->private_data; put_net(seq->private); return single_release(ino, f); } -EXPORT_SYMBOL_GPL(single_release_net); + +static const struct file_operations proc_net_single_fops = { + .open = single_open_net, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release_net, +}; + +struct proc_dir_entry *proc_create_net_single(const char *name, umode_t mode, + struct proc_dir_entry *parent, + int (*show)(struct seq_file *, void *), void *data) +{ + struct proc_dir_entry *p; + + p = proc_create_reg(name, mode, &parent, data); + if (!p) + return NULL; + p->proc_fops = &proc_net_single_fops; + p->single_show = show; + return proc_register(parent, p); +} +EXPORT_SYMBOL_GPL(proc_create_net_single); static struct net *get_proc_task_net(struct inode *dir) { diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 9dcde9644253..e518352137e7 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -58,6 +58,9 @@ struct proc_dir_entry *proc_create_net_data(const char *name, umode_t mode, unsigned int state_size, void *data); #define proc_create_net(name, mode, parent, state_size, ops) \ proc_create_net_data(name, mode, parent, state_size, ops, NULL) +struct proc_dir_entry *proc_create_net_single(const char *name, umode_t mode, + struct proc_dir_entry *parent, + int (*show)(struct seq_file *, void *), void *data); #else /* CONFIG_PROC_FS */ @@ -97,6 +100,7 @@ static inline int remove_proc_subtree(const char *name, struct proc_dir_entry *p #define proc_create_net_data(name, mode, parent, ops, state_size, data) ({NULL;}) #define proc_create_net(name, mode, parent, state_size, ops) ({NULL;}) +#define proc_create_net_single(name, mode, parent, show, data) ({NULL;}) #endif /* CONFIG_PROC_FS */ diff --git a/include/linux/seq_file_net.h b/include/linux/seq_file_net.h index 5ea18a16291a..0fdbe1ddd8d1 100644 --- a/include/linux/seq_file_net.h +++ b/include/linux/seq_file_net.h @@ -13,9 +13,6 @@ struct seq_net_private { #endif }; -int single_open_net(struct inode *, struct file *file, - int (*show)(struct seq_file *, void *)); -int single_release_net(struct inode *, struct file *); static inline struct net *seq_file_net(struct seq_file *seq) { #ifdef CONFIG_NET_NS @@ -26,8 +23,8 @@ static inline struct net *seq_file_net(struct seq_file *seq) } /* - * This one is needed for single_open_net since net is stored directly in - * private not as a struct i.e. seq_file_net can't be used. + * This one is needed for proc_create_net_single since net is stored directly + * in private not as a struct i.e. seq_file_net can't be used. */ static inline struct net *seq_file_single_net(struct seq_file *seq) { diff --git a/net/can/bcm.c b/net/can/bcm.c index 8073fa14e143..6ad89f49b341 100644 --- a/net/can/bcm.c +++ b/net/can/bcm.c @@ -239,18 +239,6 @@ static int bcm_proc_show(struct seq_file *m, void *v) seq_putc(m, '\n'); return 0; } - -static int bcm_proc_open(struct inode *inode, struct file *file) -{ - return single_open_net(inode, file, bcm_proc_show); -} - -static const struct file_operations bcm_proc_fops = { - .open = bcm_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release_net, -}; #endif /* CONFIG_PROC_FS */ /* @@ -1606,9 +1594,9 @@ static int bcm_connect(struct socket *sock, struct sockaddr *uaddr, int len, if (net->can.bcmproc_dir) { /* unique socket address as filename */ sprintf(bo->procname, "%lu", sock_i_ino(sk)); - bo->bcm_proc_read = proc_create_data(bo->procname, 0644, + bo->bcm_proc_read = proc_create_net_single(bo->procname, 0644, net->can.bcmproc_dir, - &bcm_proc_fops, sk); + bcm_proc_show, sk); if (!bo->bcm_proc_read) { ret = -ENOMEM; goto fail; diff --git a/net/can/proc.c b/net/can/proc.c index fde2fd55b826..70fea17bb04c 100644 --- a/net/can/proc.c +++ b/net/can/proc.c @@ -270,18 +270,6 @@ static int can_stats_proc_show(struct seq_file *m, void *v) return 0; } -static int can_stats_proc_open(struct inode *inode, struct file *file) -{ - return single_open_net(inode, file, can_stats_proc_show); -} - -static const struct file_operations can_stats_proc_fops = { - .open = can_stats_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release_net, -}; - static int can_reset_stats_proc_show(struct seq_file *m, void *v) { struct net *net = m->private; @@ -303,36 +291,12 @@ static int can_reset_stats_proc_show(struct seq_file *m, void *v) return 0; } -static int can_reset_stats_proc_open(struct inode *inode, struct file *file) -{ - return single_open_net(inode, file, can_reset_stats_proc_show); -} - -static const struct file_operations can_reset_stats_proc_fops = { - .open = can_reset_stats_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int can_version_proc_show(struct seq_file *m, void *v) { seq_printf(m, "%s\n", CAN_VERSION_STRING); return 0; } -static int can_version_proc_open(struct inode *inode, struct file *file) -{ - return single_open_net(inode, file, can_version_proc_show); -} - -static const struct file_operations can_version_proc_fops = { - .open = can_version_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static inline void can_rcvlist_proc_show_one(struct seq_file *m, int idx, struct net_device *dev, struct can_dev_rcv_lists *d) @@ -373,18 +337,6 @@ static int can_rcvlist_proc_show(struct seq_file *m, void *v) return 0; } -static int can_rcvlist_proc_open(struct inode *inode, struct file *file) -{ - return single_open_net(inode, file, can_rcvlist_proc_show); -} - -static const struct file_operations can_rcvlist_proc_fops = { - .open = can_rcvlist_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static inline void can_rcvlist_proc_show_array(struct seq_file *m, struct net_device *dev, struct hlist_head *rcv_array, @@ -440,19 +392,6 @@ static int can_rcvlist_sff_proc_show(struct seq_file *m, void *v) return 0; } -static int can_rcvlist_sff_proc_open(struct inode *inode, struct file *file) -{ - return single_open_net(inode, file, can_rcvlist_sff_proc_show); -} - -static const struct file_operations can_rcvlist_sff_proc_fops = { - .open = can_rcvlist_sff_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release_net, -}; - - static int can_rcvlist_eff_proc_show(struct seq_file *m, void *v) { struct net_device *dev; @@ -483,18 +422,6 @@ static int can_rcvlist_eff_proc_show(struct seq_file *m, void *v) return 0; } -static int can_rcvlist_eff_proc_open(struct inode *inode, struct file *file) -{ - return single_open_net(inode, file, can_rcvlist_eff_proc_show); -} - -static const struct file_operations can_rcvlist_eff_proc_fops = { - .open = can_rcvlist_eff_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release_net, -}; - /* * can_init_proc - create main CAN proc directory and procfs entries */ @@ -510,37 +437,29 @@ void can_init_proc(struct net *net) } /* own procfs entries from the AF_CAN core */ - net->can.pde_version = proc_create(CAN_PROC_VERSION, 0644, - net->can.proc_dir, - &can_version_proc_fops); - net->can.pde_stats = proc_create(CAN_PROC_STATS, 0644, - net->can.proc_dir, - &can_stats_proc_fops); - net->can.pde_reset_stats = proc_create(CAN_PROC_RESET_STATS, 0644, - net->can.proc_dir, - &can_reset_stats_proc_fops); - net->can.pde_rcvlist_err = proc_create_data(CAN_PROC_RCVLIST_ERR, 0644, - net->can.proc_dir, - &can_rcvlist_proc_fops, - (void *)RX_ERR); - net->can.pde_rcvlist_all = proc_create_data(CAN_PROC_RCVLIST_ALL, 0644, - net->can.proc_dir, - &can_rcvlist_proc_fops, - (void *)RX_ALL); - net->can.pde_rcvlist_fil = proc_create_data(CAN_PROC_RCVLIST_FIL, 0644, - net->can.proc_dir, - &can_rcvlist_proc_fops, - (void *)RX_FIL); - net->can.pde_rcvlist_inv = proc_create_data(CAN_PROC_RCVLIST_INV, 0644, - net->can.proc_dir, - &can_rcvlist_proc_fops, - (void *)RX_INV); - net->can.pde_rcvlist_eff = proc_create(CAN_PROC_RCVLIST_EFF, 0644, - net->can.proc_dir, - &can_rcvlist_eff_proc_fops); - net->can.pde_rcvlist_sff = proc_create(CAN_PROC_RCVLIST_SFF, 0644, - net->can.proc_dir, - &can_rcvlist_sff_proc_fops); + net->can.pde_version = proc_create_net_single(CAN_PROC_VERSION, 0644, + net->can.proc_dir, can_version_proc_show, NULL); + net->can.pde_stats = proc_create_net_single(CAN_PROC_STATS, 0644, + net->can.proc_dir, can_stats_proc_show, NULL); + net->can.pde_reset_stats = proc_create_net_single(CAN_PROC_RESET_STATS, + 0644, net->can.proc_dir, can_reset_stats_proc_show, + NULL); + net->can.pde_rcvlist_err = proc_create_net_single(CAN_PROC_RCVLIST_ERR, + 0644, net->can.proc_dir, can_rcvlist_proc_show, + (void *)RX_ERR); + net->can.pde_rcvlist_all = proc_create_net_single(CAN_PROC_RCVLIST_ALL, + 0644, net->can.proc_dir, can_rcvlist_proc_show, + (void *)RX_ALL); + net->can.pde_rcvlist_fil = proc_create_net_single(CAN_PROC_RCVLIST_FIL, + 0644, net->can.proc_dir, can_rcvlist_proc_show, + (void *)RX_FIL); + net->can.pde_rcvlist_inv = proc_create_net_single(CAN_PROC_RCVLIST_INV, + 0644, net->can.proc_dir, can_rcvlist_proc_show, + (void *)RX_INV); + net->can.pde_rcvlist_eff = proc_create_net_single(CAN_PROC_RCVLIST_EFF, + 0644, net->can.proc_dir, can_rcvlist_eff_proc_show, NULL); + net->can.pde_rcvlist_sff = proc_create_net_single(CAN_PROC_RCVLIST_SFF, + 0644, net->can.proc_dir, can_rcvlist_sff_proc_show, NULL); } /* diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c index 3293f04b941d..99c23a0cb8ca 100644 --- a/net/ipv4/fib_trie.c +++ b/net/ipv4/fib_trie.c @@ -2348,18 +2348,6 @@ static int fib_triestat_seq_show(struct seq_file *seq, void *v) return 0; } -static int fib_triestat_seq_open(struct inode *inode, struct file *file) -{ - return single_open_net(inode, file, fib_triestat_seq_show); -} - -static const struct file_operations fib_triestat_fops = { - .open = fib_triestat_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release_net, -}; - static struct key_vector *fib_trie_get_idx(struct seq_file *seq, loff_t pos) { struct fib_trie_iter *iter = seq->private; @@ -2719,8 +2707,8 @@ int __net_init fib_proc_init(struct net *net) sizeof(struct fib_trie_iter))) goto out1; - if (!proc_create("fib_triestat", 0444, net->proc_net, - &fib_triestat_fops)) + if (!proc_create_net_single("fib_triestat", 0444, net->proc_net, + fib_triestat_seq_show, NULL)) goto out2; if (!proc_create_net("route", 0444, net->proc_net, &fib_route_seq_ops, diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c index a058de677e94..573e43c8ed87 100644 --- a/net/ipv4/proc.c +++ b/net/ipv4/proc.c @@ -77,18 +77,6 @@ static int sockstat_seq_show(struct seq_file *seq, void *v) return 0; } -static int sockstat_seq_open(struct inode *inode, struct file *file) -{ - return single_open_net(inode, file, sockstat_seq_show); -} - -static const struct file_operations sockstat_seq_fops = { - .open = sockstat_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release_net, -}; - /* snmp items */ static const struct snmp_mib snmp4_ipstats_list[] = { SNMP_MIB_ITEM("InReceives", IPSTATS_MIB_INPKTS), @@ -460,20 +448,6 @@ static int snmp_seq_show(struct seq_file *seq, void *v) return 0; } -static int snmp_seq_open(struct inode *inode, struct file *file) -{ - return single_open_net(inode, file, snmp_seq_show); -} - -static const struct file_operations snmp_seq_fops = { - .open = snmp_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release_net, -}; - - - /* * Output /proc/net/netstat */ @@ -507,26 +481,16 @@ static int netstat_seq_show(struct seq_file *seq, void *v) return 0; } -static int netstat_seq_open(struct inode *inode, struct file *file) -{ - return single_open_net(inode, file, netstat_seq_show); -} - -static const struct file_operations netstat_seq_fops = { - .open = netstat_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release_net, -}; - static __net_init int ip_proc_init_net(struct net *net) { - if (!proc_create("sockstat", 0444, net->proc_net, - &sockstat_seq_fops)) + if (!proc_create_net_single("sockstat", 0444, net->proc_net, + sockstat_seq_show, NULL)) goto out_sockstat; - if (!proc_create("netstat", 0444, net->proc_net, &netstat_seq_fops)) + if (!proc_create_net_single("netstat", 0444, net->proc_net, + netstat_seq_show, NULL)) goto out_netstat; - if (!proc_create("snmp", 0444, net->proc_net, &snmp_seq_fops)) + if (!proc_create_net_single("snmp", 0444, net->proc_net, snmp_seq_show, + NULL)) goto out_snmp; return 0; diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c index a0edf194822a..2356b4af7309 100644 --- a/net/ipv6/proc.c +++ b/net/ipv6/proc.c @@ -53,18 +53,6 @@ static int sockstat6_seq_show(struct seq_file *seq, void *v) return 0; } -static int sockstat6_seq_open(struct inode *inode, struct file *file) -{ - return single_open_net(inode, file, sockstat6_seq_show); -} - -static const struct file_operations sockstat6_seq_fops = { - .open = sockstat6_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release_net, -}; - static const struct snmp_mib snmp6_ipstats_list[] = { /* ipv6 mib according to RFC 2465 */ SNMP_MIB_ITEM("Ip6InReceives", IPSTATS_MIB_INPKTS), @@ -242,18 +230,6 @@ static int snmp6_seq_show(struct seq_file *seq, void *v) return 0; } -static int snmp6_seq_open(struct inode *inode, struct file *file) -{ - return single_open_net(inode, file, snmp6_seq_show); -} - -static const struct file_operations snmp6_seq_fops = { - .open = snmp6_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release_net, -}; - static int snmp6_dev_seq_show(struct seq_file *seq, void *v) { struct inet6_dev *idev = (struct inet6_dev *)seq->private; @@ -302,11 +278,12 @@ int snmp6_unregister_dev(struct inet6_dev *idev) static int __net_init ipv6_proc_init_net(struct net *net) { - if (!proc_create("sockstat6", 0444, net->proc_net, - &sockstat6_seq_fops)) + if (!proc_create_net_single("sockstat6", 0444, net->proc_net, + sockstat6_seq_show, NULL)) return -ENOMEM; - if (!proc_create("snmp6", 0444, net->proc_net, &snmp6_seq_fops)) + if (!proc_create_net_single("snmp6", 0444, net->proc_net, + snmp6_seq_show, NULL)) goto proc_snmp6_fail; net->mib.proc_net_devsnmp6 = proc_mkdir("dev_snmp6", net->proc_net); diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 527b9b644f5a..a6598762d2c1 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -4876,18 +4876,6 @@ static int rt6_stats_seq_show(struct seq_file *seq, void *v) return 0; } - -static int rt6_stats_seq_open(struct inode *inode, struct file *file) -{ - return single_open_net(inode, file, rt6_stats_seq_show); -} - -static const struct file_operations rt6_stats_seq_fops = { - .open = rt6_stats_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release_net, -}; #endif /* CONFIG_PROC_FS */ #ifdef CONFIG_SYSCTL @@ -5094,7 +5082,8 @@ static int __net_init ip6_route_net_init_late(struct net *net) #ifdef CONFIG_PROC_FS proc_create_net("ipv6_route", 0, net->proc_net, &ipv6_route_seq_ops, sizeof(struct ipv6_route_iter)); - proc_create("rt6_stats", 0444, net->proc_net, &rt6_stats_seq_fops); + proc_create_net_single("rt6_stats", 0444, net->proc_net, + rt6_stats_seq_show, NULL); #endif return 0; } diff --git a/net/kcm/kcmproc.c b/net/kcm/kcmproc.c index 6283ed2f43b2..370da2f80e3c 100644 --- a/net/kcm/kcmproc.c +++ b/net/kcm/kcmproc.c @@ -345,22 +345,10 @@ static int kcm_stats_seq_show(struct seq_file *seq, void *v) return 0; } -static int kcm_stats_seq_open(struct inode *inode, struct file *file) -{ - return single_open_net(inode, file, kcm_stats_seq_show); -} - -static const struct file_operations kcm_stats_seq_fops = { - .open = kcm_stats_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release_net, -}; - static int kcm_proc_init_net(struct net *net) { - if (!proc_create("kcm_stats", 0444, net->proc_net, - &kcm_stats_seq_fops)) + if (!proc_create_net_single("kcm_stats", 0444, net->proc_net, + kcm_stats_seq_show, NULL)) goto out_kcm_stats; if (!proc_create_net("kcm", 0444, net->proc_net, &kcm_seq_ops, diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c index 6221016e554a..c983dea67e3a 100644 --- a/net/netfilter/ipvs/ip_vs_ctl.c +++ b/net/netfilter/ipvs/ip_vs_ctl.c @@ -2141,18 +2141,6 @@ static int ip_vs_stats_show(struct seq_file *seq, void *v) return 0; } -static int ip_vs_stats_seq_open(struct inode *inode, struct file *file) -{ - return single_open_net(inode, file, ip_vs_stats_show); -} - -static const struct file_operations ip_vs_stats_fops = { - .open = ip_vs_stats_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release_net, -}; - static int ip_vs_stats_percpu_show(struct seq_file *seq, void *v) { struct net *net = seq_file_single_net(seq); @@ -2208,18 +2196,6 @@ static int ip_vs_stats_percpu_show(struct seq_file *seq, void *v) return 0; } - -static int ip_vs_stats_percpu_seq_open(struct inode *inode, struct file *file) -{ - return single_open_net(inode, file, ip_vs_stats_percpu_show); -} - -static const struct file_operations ip_vs_stats_percpu_fops = { - .open = ip_vs_stats_percpu_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release_net, -}; #endif /* @@ -4019,9 +3995,10 @@ int __net_init ip_vs_control_net_init(struct netns_ipvs *ipvs) proc_create_net("ip_vs", 0, ipvs->net->proc_net, &ip_vs_info_seq_ops, sizeof(struct ip_vs_iter)); - proc_create("ip_vs_stats", 0, ipvs->net->proc_net, &ip_vs_stats_fops); - proc_create("ip_vs_stats_percpu", 0, ipvs->net->proc_net, - &ip_vs_stats_percpu_fops); + proc_create_net_single("ip_vs_stats", 0, ipvs->net->proc_net, + ip_vs_stats_show, NULL); + proc_create_net_single("ip_vs_stats_percpu", 0, ipvs->net->proc_net, + ip_vs_stats_percpu_show, NULL); if (ip_vs_control_net_init_sysctl(ipvs)) goto err; diff --git a/net/sctp/proc.c b/net/sctp/proc.c index 009c185b71eb..ef5c9a82d4e8 100644 --- a/net/sctp/proc.c +++ b/net/sctp/proc.c @@ -88,19 +88,6 @@ static int sctp_snmp_seq_show(struct seq_file *seq, void *v) return 0; } -/* Initialize the seq file operations for 'snmp' object. */ -static int sctp_snmp_seq_open(struct inode *inode, struct file *file) -{ - return single_open_net(inode, file, sctp_snmp_seq_show); -} - -static const struct file_operations sctp_snmp_seq_fops = { - .open = sctp_snmp_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release_net, -}; - /* Dump local addresses of an association/endpoint. */ static void sctp_seq_dump_local_addrs(struct seq_file *seq, struct sctp_ep_common *epb) { @@ -408,8 +395,8 @@ int __net_init sctp_proc_init(struct net *net) net->sctp.proc_net_sctp = proc_net_mkdir(net, "sctp", net->proc_net); if (!net->sctp.proc_net_sctp) return -ENOMEM; - if (!proc_create("snmp", 0444, net->sctp.proc_net_sctp, - &sctp_snmp_seq_fops)) + if (!proc_create_net_single("snmp", 0444, net->sctp.proc_net_sctp, + sctp_snmp_seq_show, NULL)) goto cleanup; if (!proc_create_net("eps", 0444, net->sctp.proc_net_sctp, &sctp_eps_ops, sizeof(struct seq_net_private))) diff --git a/net/xfrm/xfrm_proc.c b/net/xfrm/xfrm_proc.c index ed06903cd84d..178318d2e120 100644 --- a/net/xfrm/xfrm_proc.c +++ b/net/xfrm/xfrm_proc.c @@ -65,22 +65,10 @@ static int xfrm_statistics_seq_show(struct seq_file *seq, void *v) return 0; } -static int xfrm_statistics_seq_open(struct inode *inode, struct file *file) -{ - return single_open_net(inode, file, xfrm_statistics_seq_show); -} - -static const struct file_operations xfrm_statistics_seq_fops = { - .open = xfrm_statistics_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release_net, -}; - int __net_init xfrm_proc_init(struct net *net) { - if (!proc_create("xfrm_stat", 0444, net->proc_net, - &xfrm_statistics_seq_fops)) + if (!proc_create_net_single("xfrm_stat", 0444, net->proc_net, + xfrm_statistics_seq_show, NULL)) return -ENOMEM; return 0; }