net: Move env_get_ip() out of the header file

This function requires access to env.h but it is a lot to include just
for the env_get() function. It eventually pulls in linux/byteorder which
causes a conflict with exfat which has its own byteorder functions.

Move the function to a C file instead.

Series-to: u-boot
Series-cc: trini
Series-cc: Jerome Forissier <jerome.forissier@linaro.org>

Signed-off-by: Simon Glass <sjg@chromium.org>

include/net-common.h

@@ -4,8 +4,6 @@
 #define __NET_COMMON_H__
 
 #include <asm/cache.h>
-#include <command.h>
-#include <env.h>
 #include <hexdump.h>
 #include <linux/if_ether.h>
 #include <linux/sizes.h>
@@ -13,6 +11,8 @@
 #include <rand.h>
 #include <time.h>
 
+struct cmd_tbl;
+
 #define DEBUG_NET_PKT_TRACE 0	/* Trace all packet data */
 
 /*
@@ -463,10 +463,7 @@ int update_tftp(ulong addr, char *interface, char *devstring);
  *	0 to 255
  * Return: IP address, or 0 if invalid
  */
-static inline struct in_addr env_get_ip(char *var)
-{
-	return string_to_ip(env_get(var));
-}
+struct in_addr env_get_ip(char *var);
 
 int net_init(void);
 

net/net-common.c

@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
+#include <env.h>
 #include <net-common.h>
 
 void copy_filename(char *dst, const char *src, int size)
@@ -25,3 +26,8 @@ int wget_request(ulong dst_addr, char *uri, struct wget_http_info *info)
 	wget_info = info ? info : &default_wget_info;
 	return wget_with_dns(dst_addr, uri);
 }
+
+struct in_addr env_get_ip(char *var)
+{
+	return string_to_ip(env_get(var));
+}