patch #8027: Completed HW checksuming for IPv4 and IPv6 ICMP's

src/core/ipv4/icmp.c

@@ -133,6 +133,7 @@ icmp_input(struct pbuf *p, struct netif *inp)
       LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: bad ICMP echo received\n"));
       goto lenerr;
     }
+#if CHECKSUM_CHECK_ICMP
     if (inet_chksum_pbuf(p) != 0) {
       LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: checksum failed for received ICMP echo\n"));
       pbuf_free(p);
@@ -140,6 +141,7 @@ icmp_input(struct pbuf *p, struct netif *inp)
       snmp_inc_icmpinerrors();
       return;
     }
+#endif
 #if LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
     if (pbuf_header(p, (PBUF_IP_HLEN + PBUF_LINK_HLEN))) {
       /* p is not big enough to contain link headers
@@ -324,7 +326,9 @@ icmp_send_response(struct pbuf *p, u8_t type, u8_t code)
 
   /* calculate checksum */
   icmphdr->chksum = 0;
+#if CHECKSUM_GEN_ICMP
   icmphdr->chksum = inet_chksum(icmphdr, q->len);
+#endif
   ICMP_STATS_INC(icmp.xmit);
   /* increase number of messages attempted to send */
   snmp_inc_icmpoutmsgs();

src/core/ipv4/ip_frag.c

@@ -578,7 +578,9 @@ ip_reass(struct pbuf *p)
     IPH_OFFSET_SET(fraghdr, 0);
     IPH_CHKSUM_SET(fraghdr, 0);
     /* @todo: do we need to set calculate the correct checksum? */
+#if CHECKSUM_GEN_IP
     IPH_CHKSUM_SET(fraghdr, inet_chksum(fraghdr, IP_HLEN));
+#endif /* CHECKSUM_GEN_IP */
 
     p = ipr->p;
 
@@ -818,7 +820,9 @@ ip_frag(struct pbuf *p, struct netif *netif, ip_addr_t *dest)
     IPH_OFFSET_SET(iphdr, htons(tmp));
     IPH_LEN_SET(iphdr, htons(cop + IP_HLEN));
     IPH_CHKSUM_SET(iphdr, 0);
+#if CHECKSUM_GEN_IP
     IPH_CHKSUM_SET(iphdr, inet_chksum(iphdr, IP_HLEN));
+#endif /* CHECKSUM_GEN_IP */
 
 #if IP_FRAG_USES_STATIC_BUF
     if (last) {