[NET]: Move in_aton from net/ipv4/utils.c to net/core/utils.c

Move in_aton to allow netpoll and pktgen to work without the rest of
the IPv4 stack. Fix whitespace and add comment for the odd placement.

Delete now-empty net/ipv4/utils.c

Re-enable netpoll/netconsole without CONFIG_INET

Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

4 files changed, 38 insertions, 62 deletions

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 51ef8a0f750a..8a835eb58808 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2540,7 +2540,7 @@ config SHAPER
 
 config NETCONSOLE
         tristate "Network console logging support (EXPERIMENTAL)"
-        depends on INET && EXPERIMENTAL
+        depends on EXPERIMENTAL
         ---help---
         If you want to log kernel messages over the network, enable this.
         See <file:Documentation/networking/netconsole.txt> for details.
diff --git a/net/core/utils.c b/net/core/utils.c
index e11a8654f363..88eb8b68e26b 100644
--- a/net/core/utils.c
+++ b/net/core/utils.c
@@ -23,10 +23,10 @@
 #include <linux/percpu.h>
 #include <linux/init.h>
 
+#include <asm/byteorder.h>
 #include <asm/system.h>
 #include <asm/uaccess.h>
 
-
 /*
   This is a maximally equidistributed combined Tausworthe generator
   based on code from GNU Scientific Library 1.5 (30 Jun 2004)
@@ -153,3 +153,38 @@ int net_ratelimit(void)
 EXPORT_SYMBOL(net_random);
 EXPORT_SYMBOL(net_ratelimit);
 EXPORT_SYMBOL(net_srandom);
+
+/*
+ * Convert an ASCII string to binary IP.
+ * This is outside of net/ipv4/ because various code that uses IP addresses
+ * is otherwise not dependent on the TCP/IP stack.
+ */
+
+__u32 in_aton(const char *str)
+{
+        unsigned long l;
+        unsigned int val;
+        int i;
+
+        l = 0;
+        for (i = 0; i < 4; i++)
+        {
+                l <<= 8;
+                if (*str != '\0')
+                {
+                        val = 0;
+                        while (*str != '\0' && *str != '.')
+                        {
+                                val *= 10;
+                                val += *str - '0';
+                                str++;
+                        }
+                        l |= val;
+                        if (*str != '\0')
+                                str++;
+                }
+        }
+        return(htonl(l));
+}
+
+EXPORT_SYMBOL(in_aton);
diff --git a/net/ipv4/Makefile b/net/ipv4/Makefile
index 5718cdb3a61e..55dc6cca1e7b 100644
--- a/net/ipv4/Makefile
+++ b/net/ipv4/Makefile
@@ -2,7 +2,7 @@
 # Makefile for the Linux TCP/IP (INET) layer.
 #
 
-obj-y     := utils.o route.o inetpeer.o protocol.o \
+obj-y     := 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 \
diff --git a/net/ipv4/utils.c b/net/ipv4/utils.c
deleted file mode 100644
index 6aecd7a43534..000000000000
--- a/net/ipv4/utils.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * INET         An implementation of the TCP/IP protocol suite for the LINUX
- *              operating system.  INET is implemented using the  BSD Socket
- *              interface as the means of communication with the user level.
- *
- *              Various kernel-resident INET utility functions; mainly
- *              for format conversion and debugging output.
- *
- * Version:     $Id: utils.c,v 1.8 2000/10/03 07:29:01 anton Exp $
- *
- * Author:      Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
- *
- * Fixes:
- *              Alan Cox        :       verify_area check.
- *              Alan Cox        :       removed old debugging.
- *              Andi Kleen      :       add net_ratelimit()  
- *
- *              This program is free software; you can redistribute it and/or
- *              modify it under the terms of the GNU General Public License
- *              as published by the Free Software Foundation; either version
- *              2 of the License, or (at your option) any later version.
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <asm/byteorder.h>
-
-/*
- *      Convert an ASCII string to binary IP. 
- */
- 
-__u32 in_aton(const char *str)
-{
-        unsigned long l;
-        unsigned int val;
-        int i;
-
-        l = 0;
-        for (i = 0; i < 4; i++) 
-        {
-                l <<= 8;
-                if (*str != '\0') 
-                {
-                        val = 0;
-                        while (*str != '\0' && *str != '.') 
-                        {
-                                val *= 10;
-                                val += *str - '0';
-                                str++;
-                        }
-                        l |= val;
-                        if (*str != '\0') 
-                                str++;
-                }
-        }
-        return(htonl(l));
-}
-
-EXPORT_SYMBOL(in_aton);