net: Remove BOOTP_VENDOREX support

It has been over a decade since we had a platform that implemented the
bootp vendor extension support hook. Remove this option due to lack of
use.

Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>

cmd/Kconfig

@@ -1951,10 +1951,6 @@ config BOOTP_BOOTPATH
 	  Even though the config is called BOOTP_BOOTPATH, it stores the
 	  path in the variable 'rootpath'.
 
-config BOOTP_VENDOREX
-	bool "Support vendor extensions from BOOTP/DHCP server"
-	depends on CMD_BOOTP
-
 config BOOTP_BOOTFILESIZE
 	bool "Request & store 'bootfilesize' from BOOTP/DHCP server"
 	depends on CMD_BOOTP

net/bootp.c

@@ -491,9 +491,6 @@ static int dhcp_extended(u8 *e, int message_type, struct in_addr server_ip,
 #endif
 	int clientarch = -1;
 
-#if defined(CONFIG_BOOTP_VENDOREX)
-	u8 *x;
-#endif
 #if defined(CONFIG_BOOTP_SEND_HOSTNAME)
 	char *hostname;
 #endif
@@ -584,12 +581,6 @@ static int dhcp_extended(u8 *e, int message_type, struct in_addr server_ip,
 
 	e = add_vci(e);
 
-#if defined(CONFIG_BOOTP_VENDOREX)
-	x = dhcp_vendorex_prep(e);
-	if (x)
-		return x - start;
-#endif
-
 	*e++ = 55;		/* Parameter Request List */
 	 cnt = e++;		/* Pointer to count of requested items */
 	*cnt = 0;
@@ -977,10 +968,6 @@ static void dhcp_process_options(uchar *popt, uchar *end)
 			}
 			break;
 		default:
-#if defined(CONFIG_BOOTP_VENDOREX)
-			if (dhcp_vendorex_proc(popt))
-				break;
-#endif
 			printf("*** Unhandled DHCP Option in OFFER/ACK:"
 			       " %d\n", *popt);
 			break;

net/bootp.h

@@ -24,10 +24,6 @@
 #if defined(CONFIG_CMD_DHCP)
 /* Minimum DHCP Options size per RFC2131 - results in 576 byte pkt */
 #define OPT_FIELD_SIZE 312
-#if defined(CONFIG_BOOTP_VENDOREX)
-extern u8 *dhcp_vendorex_prep(u8 *e); /*rtn new e after add own opts. */
-extern u8 *dhcp_vendorex_proc(u8 *e); /*rtn next e if mine,else NULL  */
-#endif
 #else
 #define OPT_FIELD_SIZE 64
 #endif