Remove _PROTOCOL macros for gcc 3.2 compatibility

src/include/gpxe/netdevice.h

 	void *priv;
 };
 
-/**
- * Register a link-layer protocol
- *
- * @v protocol		Link-layer protocol
- */
-#define LL_PROTOCOL( protocol ) \
-	struct ll_protocol protocol __table ( ll_protocols, 01 )
+/** Declare a link-layer protocol */
+#define __ll_protocol  __table ( ll_protocols, 01 )
 
-/**
- * Register a network-layer protocol
- *
- * @v protocol		Network-layer protocol
- */
-#define NET_PROTOCOL( protocol ) \
-	struct net_protocol protocol __table ( net_protocols, 01 )
+/** Declare a network-layer protocol */
+#define __net_protocol __table ( net_protocols, 01 )
 
 /**
  * Get network device name

src/include/gpxe/tcpip.h

 		       struct sockaddr_tcpip *st_dest );
 };
 
-/**
- * Register a TCP/IP transport-layer protocol
- *
- * @v protocol		Transport-layer protocol
- */
-#define TCPIP_PROTOCOL( protocol ) \
-	struct tcpip_protocol protocol __table ( tcpip_protocols, 01 )
+/** Declare a TCP/IP transport-layer protocol */
+#define	__tcpip_protocol __table ( tcpip_protocols, 01 )
 
-/**
- * Register a TCP/IP network-layer protocol
- *
- * @v protocol		Network-layer protocol
- */
-#define TCPIP_NET_PROTOCOL( protocol ) \
-	struct tcpip_net_protocol protocol __table ( tcpip_net_protocols, 01 )
+/** Declare a TCP/IP network-layer protocol */
+#define	__tcpip_net_protocol __table ( tcpip_net_protocols, 01 )
 
 extern int tcpip_rx ( struct pk_buff *pkb, uint8_t tcpip_proto,
 		      struct sockaddr_tcpip *st_src,

src/net/aoe.c

 }
 
 /** AoE protocol */
-struct net_protocol aoe_protocol = {
+struct net_protocol aoe_protocol __net_protocol = {
 	.name = "AoE",
 	.net_proto = htons ( ETH_P_AOE ),
 	.rx = aoe_rx,
 };
 
-NET_PROTOCOL ( aoe_protocol );
-
 /**
  * Open AoE session
  *

src/net/arp.c

 }
 
 /** ARP protocol */
-struct net_protocol arp_protocol = {
+struct net_protocol arp_protocol __net_protocol = {
 	.name = "ARP",
 	.net_proto = htons ( ETH_P_ARP ),
 	.rx = arp_rx,
 	.ntoa = arp_ntoa,
 };
-
-NET_PROTOCOL ( arp_protocol );

src/net/ethernet.c

 }
 
 /** Ethernet protocol */
-struct ll_protocol ethernet_protocol = {
+struct ll_protocol ethernet_protocol __ll_protocol = {
 	.name		= "Ethernet",
 	.ll_proto	= htons ( ARPHRD_ETHER ),
 	.ll_addr_len	= ETH_ALEN,
 	.rx		= eth_rx,
 	.ntoa		= eth_ntoa,
 };
-
-LL_PROTOCOL ( ethernet_protocol );

src/net/ipv4.c

 }
 
 /** IPv4 protocol */
-struct net_protocol ipv4_protocol = {
+struct net_protocol ipv4_protocol __net_protocol = {
 	.name = "IP",
 	.net_proto = htons ( ETH_P_IP ),
 	.net_addr_len = sizeof ( struct in_addr ),
 	.ntoa = ipv4_ntoa,
 };
 
-NET_PROTOCOL ( ipv4_protocol );
-
 /** IPv4 TCPIP net protocol */
-struct tcpip_net_protocol ipv4_tcpip_protocol = {
+struct tcpip_net_protocol ipv4_tcpip_protocol __tcpip_net_protocol = {
 	.name = "IPv4",
 	.sa_family = AF_INET,
 	.tx = ipv4_tx,
 };
 
-TCPIP_NET_PROTOCOL ( ipv4_tcpip_protocol );
-
 /** IPv4 ARP protocol */
 struct arp_net_protocol ipv4_arp_protocol __arp_net_protocol = {
 	.net_protocol = &ipv4_protocol,

src/net/ipv6.c

 }
 
 /** IPv6 protocol */
-struct net_protocol ipv6_protocol = {
+struct net_protocol ipv6_protocol __net_protocol = {
 	.name = "IP6",
 	.net_proto = htons ( ETH_P_IPV6 ),
 	.net_addr_len = sizeof ( struct in6_addr ),
 	.ntoa = ipv6_ntoa,
 };
 
-NET_PROTOCOL ( ipv6_protocol );
-
 /** IPv6 TCPIP net protocol */
-struct tcpip_net_protocol ipv6_tcpip_protocol = {
+struct tcpip_net_protocol ipv6_tcpip_protocol __tcpip_net_protocol = {
 	.name = "IPv6",
 	.sa_family = AF_INET6,
 	.tx = ipv6_tx,
 };
-
-TCPIP_NET_PROTOCOL ( ipv6_tcpip_protocol );

src/net/tcp.c

 }
 
 /** TCP protocol */
-struct tcpip_protocol tcp_protocol = {
+struct tcpip_protocol tcp_protocol __tcpip_protocol = {
 	.name = "TCP",
 	.rx = tcp_rx,
 	.tcpip_proto = IP_TCP,
 	.csum_offset = 16,
 };
 
-TCPIP_PROTOCOL ( tcp_protocol );
-
 #endif /* USE_UIP */

src/net/udp.c

 	return rc;
 }
 
-struct tcpip_protocol udp_protocol  = {
+struct tcpip_protocol udp_protocol __tcpip_protocol = {
 	.name = "UDP",
 	.rx = udp_rx,
 	.tcpip_proto = IP_UDP,
 	.csum_offset = 6,
 };
-
-TCPIP_PROTOCOL ( udp_protocol );