ipv4: move proc stuff from net/ipv4/af_inet.c to net/ipv4/proc.c

Also make compilation of this misc proc stuff not compile/link if
CONFIG_PROC_FS is not set. Now to seq_file this routines.

include/net/ip_fib.h

@@ -277,5 +277,6 @@ static inline void fib_res_put(struct fib_result *res)
 }
 
 extern int fib_proc_init(void);
+extern void fib_proc_exit(void);
 
 #endif  /* _NET_FIB_H */

net/ipv4/Makefile

@@ -2,13 +2,14 @@
 # Makefile for the Linux TCP/IP (INET) layer.
 #
 
-obj-y     := utils.o route.o inetpeer.o proc.o protocol.o \
+obj-y     := utils.o route.o inetpeer.o protocol.o \
 	     ip_input.o ip_fragment.o ip_forward.o ip_options.o \
 	     ip_output.o ip_sockglue.o \
 	     tcp.o tcp_input.o tcp_output.o tcp_timer.o tcp_ipv4.o tcp_minisocks.o \
 	     tcp_diag.o raw.o udp.o arp.o icmp.o devinet.o af_inet.o igmp.o \
 	     sysctl_net_ipv4.o fib_frontend.o fib_semantics.o fib_hash.o
 
+obj-$(CONFIG_PROC_FS) += proc.o
 obj-$(CONFIG_IP_MULTIPLE_TABLES) += fib_rules.o
 obj-$(CONFIG_IP_ROUTE_NAT) += ip_nat_dumb.o
 obj-$(CONFIG_IP_MROUTE) += ipmr.o

net/ipv4/af_inet.c

@@ -1155,12 +1155,9 @@ module_init(inet_init);
 
 #ifdef CONFIG_PROC_FS
 
+extern int ip_misc_proc_init(void);
 extern int raw_get_info(char *, char **, off_t, int);
-extern int snmp_get_info(char *, char **, off_t, int);
-extern int netstat_get_info(char *, char **, off_t, int);
-extern int afinet_get_info(char *, char **, off_t, int);
 extern int tcp_get_info(char *, char **, off_t, int);
-extern int udp_get_info(char *, char **, off_t, int);
 
 int __init ipv4_proc_init(void)
 {
@@ -1168,45 +1165,29 @@ int __init ipv4_proc_init(void)
 
 	if (!proc_net_create("raw", 0, raw_get_info))
 		goto out_raw;
-	if (!proc_net_create("netstat", 0, netstat_get_info))
-		goto out_netstat;
-	if (!proc_net_create("snmp", 0, snmp_get_info))
-		goto out_snmp;
-	if (!proc_net_create("sockstat", 0, afinet_get_info))
-		goto out_sockstat;
 	if (!proc_net_create("tcp", 0, tcp_get_info))
 		goto out_tcp;
 	if (udp_proc_init())
 		goto out_udp;
 	if (fib_proc_init())
 		goto out_fib;
+	if (ip_misc_proc_init())
+		goto out_misc;
 out:
 	return rc;
+out_misc:
+	fib_proc_exit();
 out_fib:
 	udp_proc_exit();
 out_udp:
 	proc_net_remove("tcp");
 out_tcp:
-	proc_net_remove("sockstat");
-out_sockstat:
-	proc_net_remove("snmp");
-out_snmp:
-	proc_net_remove("netstat");
-out_netstat:
 	proc_net_remove("raw");
 out_raw:
 	rc = -ENOMEM;
 	goto out;
 }
 
-int ip_seq_release(struct inode *inode, struct file *file)
-{
-	struct seq_file *seq = (struct seq_file *)file->private_data;
-
-	kfree(seq->private);
-	seq->private = NULL;
-	return seq_release(inode, file);
-}
 #else /* CONFIG_PROC_FS */
 int __init ipv4_proc_init(void)
 {

net/ipv4/fib_hash.c

@@ -1086,9 +1086,21 @@ int __init fib_proc_init(void)
 		rc = -ENOMEM;
 	return rc;
 }
+
+void __init fib_proc_exit(void)
+{
+	remove_proc_entry("route", proc_net);
+}
+
 #else /* CONFIG_PROC_FS */
+
 int __init fib_proc_init(void)
 {
 	return 0;
 }
+
+void __init fib_proc_exit(void)
+{
+	return 0;
+}
 #endif /* CONFIG_PROC_FS */

net/ipv4/proc.c

@@ -47,6 +47,8 @@
 #include <net/tcp.h>
 #include <net/udp.h>
 #include <linux/skbuff.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 #include <net/sock.h>
 #include <net/raw.h>
 
@@ -212,3 +214,33 @@ int netstat_get_info(char *buffer, char **start, off_t offset, int length)
 		len = 0; 
 	return len;
 }
+
+int __init ip_misc_proc_init(void)
+{
+	int rc = 0;
+
+	if (!proc_net_create("netstat", 0, netstat_get_info))
+		goto out_netstat;
+	if (!proc_net_create("snmp", 0, snmp_get_info))
+		goto out_snmp;
+	if (!proc_net_create("sockstat", 0, afinet_get_info))
+		goto out_sockstat;
+out:
+	return rc;
+out_sockstat:
+	proc_net_remove("snmp");
+out_snmp:
+	proc_net_remove("netstat");
+out_netstat:
+	rc = -ENOMEM;
+	goto out;
+}
+
+int ip_seq_release(struct inode *inode, struct file *file)
+{
+	struct seq_file *seq = (struct seq_file *)file->private_data;
+
+	kfree(seq->private);
+	seq->private = NULL;
+	return seq_release(inode, file);
+}