Changed initialization: many init functions are not needed any more since we now rely on the compiler initializing global and static variables to zero!

src/core/ipv4/igmp.c

@@ -113,8 +113,6 @@ igmp_init(void)
 
   IP4_ADDR(&allsystems, 224, 0, 0, 1);
   IP4_ADDR(&allrouters, 224, 0, 0, 2);
-
-  igmp_group_list = NULL;
 }
 
 #ifdef LWIP_DEBUG

src/core/ipv4/ip.c

@@ -55,17 +55,6 @@
 #include "lwip/stats.h"
 #include "arch/perf.h"
 
-/**
- * Initializes the IP layer.
- */
-void
-ip_init(void)
-{
-#if IP_REASSEMBLY
-  ip_reass_init();
-#endif
-}
-
 /**
  * Finds the appropriate network interface for a given IP address. It
  * searches the list of network interfaces linearly. A match is found

src/core/ipv4/ip_frag.c

@@ -85,14 +85,6 @@ static u16_t ip_reass_pbufcount;
 /* function prototypes */
 static void dequeue_packet(struct ip_reassdata *ipr, struct ip_reassdata *prev);
 
-/**
- * Initializes IP reassembly states.
- */
-void
-ip_reass_init(void)
-{
-}
-
 /**
  * Reassembly timer base function
  * for both NO_SYS == 0 and 1 (!).

src/core/mem.c

@@ -206,7 +206,6 @@ mem_init(void)
     (SIZEOF_STRUCT_MEM & (MEM_ALIGNMENT-1)) == 0);
 
   /* align the heap */
-  memset(ram_heap, 0, sizeof(ram_heap));
   ram = LWIP_MEM_ALIGN(ram_heap);
   /* initialize the start of the heap */
   mem = (struct mem *)ram;

src/core/netif.c

@@ -61,15 +61,6 @@
 struct netif *netif_list = NULL;
 struct netif *netif_default = NULL;
 
-/**
- * Initialize this module
- */
-void
-netif_init(void)
-{
-  netif_list = netif_default = NULL;
-}
-
 /**
  * Add a network interface to the list of lwIP netifs.
  *

src/core/raw.c

@@ -55,16 +55,7 @@
 #include <string.h>
 
 /** The list of RAW PCBs */
-static struct raw_pcb *raw_pcbs = NULL;
-
-/**
- * Initialize this module
- */
-void
-raw_init(void)
-{
-  raw_pcbs = NULL;
-}
+static struct raw_pcb *raw_pcbs;
 
 /**
  * Determine if in incoming IP packet is covered by a RAW PCB

src/core/snmp/mib_structs.c

@@ -53,7 +53,7 @@ struct nse
   /** right child next level */
   u8_t r_nl;
 };
-static u8_t node_stack_cnt = 0;
+static u8_t node_stack_cnt;
 static struct nse node_stack[NODE_STACK_SIZE];
 
 /**

src/core/snmp/msg_in.c

@@ -56,7 +56,7 @@ const char snmp_publiccommunity[7] = "public";
 /* statically allocated buffers for SNMP_CONCURRENT_REQUESTS */
 struct snmp_msg_pstat msg_input_list[SNMP_CONCURRENT_REQUESTS];
 /* UDP Protocol Control Block */
-struct udp_pcb *snmp1_pcb = NULL;
+struct udp_pcb *snmp1_pcb;
 
 static void snmp_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, struct ip_addr *addr, u16_t port);
 static err_t snmp_pdu_header_check(struct pbuf *p, u16_t ofs, u16_t pdu_len, u16_t *ofs_ret, struct snmp_msg_pstat *m_stat);

src/core/stats.c

@@ -48,11 +48,6 @@
 
 struct stats_ lwip_stats;
 
-void
-stats_init(void)
-{
-  memset(&lwip_stats, 0, sizeof(struct stats_));
-}
 #if LWIP_STATS_DISPLAY
 void
 stats_display_proto(struct stats_proto *proto, char *name)

src/core/tcp.c

@@ -74,25 +74,6 @@ struct tcp_pcb *tcp_tmp_pcb;
 static u8_t tcp_timer;
 static u16_t tcp_new_port(void);
 
-/**
- * Initializes the TCP layer.
- */
-void
-tcp_init(void)
-{
-  /* Clear globals. */
-  tcp_bound_pcbs = NULL;
-  tcp_listen_pcbs.listen_pcbs = NULL;
-  tcp_active_pcbs = NULL;
-  tcp_tw_pcbs = NULL;
-  tcp_tmp_pcb = NULL;
-  
-  /* initialize timer */
-  tcp_ticks = 0;
-  tcp_timer = 0;
-  
-}
-
 /**
  * Called periodically to dispatch TCP timers.
  *

src/core/udp.c

@@ -65,16 +65,7 @@
 
 /* The list of UDP PCBs */
 /* exported in udp.h (was static) */
-struct udp_pcb *udp_pcbs = NULL;
-
-/**
- * Initialize the UDP module
- */
-void
-udp_init(void)
-{
-  udp_pcbs = NULL;
-}
+struct udp_pcb *udp_pcbs;
 
 /**
  * Process an incoming UDP datagram.