minor: whitespace cleanups

src/api/sockets.c

@@ -1086,7 +1086,7 @@ lwip_sendmsg(int s, const struct msghdr *msg, int flags)
     } else {
       pbuf_cat(chain_buf->p, p);
     }
-  }    
+  }
   /* save size of total chain */
   if (err == ERR_OK) {
     size = netbuf_len(chain_buf);

src/api/tcpip.c

@@ -375,7 +375,7 @@ tcpip_api_call(tcpip_api_call_fn fn, struct tcpip_api_call_data *call)
 #endif /* LWIP_NETCONN_SEM_PER_THREAD */
 
   LWIP_ASSERT("Invalid mbox", sys_mbox_valid_val(mbox));
-    
+
   TCPIP_MSG_VAR_ALLOC(msg);
   TCPIP_MSG_VAR_REF(msg).type = TCPIP_MSG_API_CALL;
   TCPIP_MSG_VAR_REF(msg).msg.api_call.arg = call;

src/apps/httpd/httpd.c

@@ -353,7 +353,7 @@ strnstr(const char* buffer, const char* token, size_t n)
     }
   }
   return NULL;
-} 
+}
 #endif /* LWIP_HTTPD_STRNSTR_PRIVATE */
 
 #if LWIP_HTTPD_STRICMP_PRIVATE
@@ -1112,7 +1112,7 @@ http_send_headers(struct tcp_pcb *pcb, struct http_state *hs)
      * (which would happen when sending files from async read). */
     if(http_check_eof(pcb, hs)) {
       data_to_send = HTTP_DATA_TO_SEND_CONTINUE;
-    } 
+    }
   }
   /* If we get here and there are still header bytes to send, we send
    * the header information we just wrote immediately. If there are no
@@ -2584,7 +2584,7 @@ http_accept(void *arg, struct tcp_pcb *pcb, err_t err)
   LWIP_UNUSED_ARG(err);
   LWIP_UNUSED_ARG(arg);
   LWIP_DEBUGF(HTTPD_DEBUG, ("http_accept %p / %p\n", (void*)pcb, arg));
-  
+
   if ((err != ERR_OK) || (pcb == NULL)) {
     return ERR_VAL;
   }
@@ -2684,7 +2684,7 @@ http_set_cgi_handlers(const tCGI *cgis, int num_handlers)
 {
   LWIP_ASSERT("no cgis given", cgis != NULL);
   LWIP_ASSERT("invalid number of handlers", num_handlers > 0);
-  
+
   g_pCGIs = cgis;
   g_iNumCGIs = num_handlers;
 }

src/apps/httpd/makefsdata/makefsdata.c

@@ -2,7 +2,7 @@
  * makefsdata: Converts a directory structure for use with the lwIP httpd.
  *
  * This file is part of the lwIP TCP/IP stack.
- * 
+ *
  * Author: Jim Pettinato
  *         Simon Goldschmidt
  *
@@ -818,7 +818,7 @@ int file_write_http_header(FILE *data_file, const char *filename, int file_size,
   u8_t provide_last_modified = includeLastModified;
 
   memset(hdr_buf, 0, sizeof(hdr_buf));
-  
+
   if (useHttp11) {
     response_type = HTTP_HDR_OK_11;
   }

src/apps/mdns/mdns.c

@@ -1778,7 +1778,7 @@ mdns_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr,
   struct mdns_packet packet;
   struct netif *recv_netif = ip_current_input_netif();
   u16_t offset = 0;
-  
+
   LWIP_UNUSED_ARG(arg);
   LWIP_UNUSED_ARG(pcb);
 

src/apps/snmp/snmp_asn1.c

@@ -196,10 +196,10 @@ snmp_asn1_enc_u64t(struct snmp_pbuf_stream* pbuf_stream, u16_t octets_needed, co
     octets_needed--;
     PBUF_OP_EXEC(snmp_pbuf_stream_write(pbuf_stream, (u8_t)(*value >> ((octets_needed-4) << 3))));
   }
-  
+
   /* skip to low u32 */
   value++;
-  
+
   while (octets_needed > 1) {
     octets_needed--;
     PBUF_OP_EXEC(snmp_pbuf_stream_write(pbuf_stream, (u8_t)(*value >> (octets_needed << 3))));
@@ -367,7 +367,7 @@ snmp_asn1_enc_s32t_cnt(s32_t value, u16_t *octets_needed)
 {
   if (value < 0) {
     value = ~value;
-  } 
+  }
   if (value < 0x80L) {
     *octets_needed = 1;
   } else if (value < 0x8000L) {
@@ -453,7 +453,7 @@ snmp_asn1_dec_tlv(struct snmp_pbuf_stream* pbuf_stream, struct snmp_asn1_tlv* tl
       PBUF_OP_EXEC(snmp_pbuf_stream_read(pbuf_stream, &data));
       tlv->value_len <<= 8;
       tlv->value_len |= data;
-      
+
       /* take care for special value used for indefinite length */
       if (tlv->value_len == 0xFFFF) {
         return ERR_VAL;
@@ -551,7 +551,7 @@ snmp_asn1_dec_u64t(struct snmp_pbuf_stream *pbuf_stream, u16_t len, u32_t *value
         } else {
           *value <<= 8;
         }
-        
+
         *value |= data;
         len--;
       }
@@ -588,7 +588,7 @@ snmp_asn1_dec_s32t(struct snmp_pbuf_stream *pbuf_stream, u16_t len, s32_t *value
   if ((len > 0) && (len < 5)) {
     PBUF_OP_EXEC(snmp_pbuf_stream_read(pbuf_stream, &data));
     len--;
-    
+
     if (data & 0x80) {
       /* negative, start from -1 */
       *value = -1;
@@ -649,7 +649,7 @@ snmp_asn1_dec_oid(struct snmp_pbuf_stream *pbuf_stream, u16_t len, u32_t* oid, u
     if (oid_max_len < 2) {
       return ERR_MEM;
     }
-    
+
     PBUF_OP_EXEC(snmp_pbuf_stream_read(pbuf_stream, &data));
     len--;
 
@@ -736,7 +736,7 @@ snmp_asn1_dec_raw(struct snmp_pbuf_stream *pbuf_stream, u16_t len, u8_t *buf, u1
     return ERR_MEM;
   }
   *buf_len = len;
-  
+
   while (len > 0) {
     PBUF_OP_EXEC(snmp_pbuf_stream_read(pbuf_stream, buf));
     buf++;

src/apps/snmp/snmp_core.c

@@ -322,10 +322,10 @@ snmp_oid_to_ip6(const u32_t *oid, ip6_addr_t *ip)
     return 0;
   }
 
-  ip->addr[0] = (oid[0]  << 24) | (oid[1]  << 16) | (oid[2]  << 8) | (oid[3]  << 0); 
+  ip->addr[0] = (oid[0]  << 24) | (oid[1]  << 16) | (oid[2]  << 8) | (oid[3]  << 0);
-  ip->addr[1] = (oid[4]  << 24) | (oid[5]  << 16) | (oid[6]  << 8) | (oid[7]  << 0); 
+  ip->addr[1] = (oid[4]  << 24) | (oid[5]  << 16) | (oid[6]  << 8) | (oid[7]  << 0);
-  ip->addr[2] = (oid[8]  << 24) | (oid[9]  << 16) | (oid[10] << 8) | (oid[11] << 0); 
+  ip->addr[2] = (oid[8]  << 24) | (oid[9]  << 16) | (oid[10] << 8) | (oid[11] << 0);
-  ip->addr[3] = (oid[12] << 24) | (oid[13] << 16) | (oid[14] << 8) | (oid[15] << 0); 
+  ip->addr[3] = (oid[12] << 24) | (oid[13] << 16) | (oid[14] << 8) | (oid[15] << 0);
   return 1;
 }
 
@@ -372,7 +372,7 @@ snmp_ip_port_to_oid(const ip_addr_t *ip, u16_t port, u32_t *oid)
   idx = snmp_ip_to_oid(ip, oid);
   oid[idx] = port;
   idx++;
-  
+
   return idx;
 }
 
@@ -424,7 +424,7 @@ snmp_oid_to_ip(const u32_t *oid, u8_t oid_len, ip_addr_t *ip)
   if (oid_len < 1) {
     return 0;
   }
-  
+
   if (oid[0] == 0) { /* any */
     /* 1x InetAddressType, 1x OID len */
     if (oid_len < 2) {
@@ -454,7 +454,7 @@ snmp_oid_to_ip(const u32_t *oid, u8_t oid_len, ip_addr_t *ip)
     if (!snmp_oid_to_ip4(&oid[2], ip_2_ip4(ip))) {
       return 0;
     }
-    
+
     return 6;
 #else /* LWIP_IPV4 */
     return 0;
@@ -497,7 +497,7 @@ u8_t
 snmp_oid_to_ip_port(const u32_t *oid, u8_t oid_len, ip_addr_t *ip, u16_t *port)
 {
   u8_t idx = 0;
-  
+
   /* InetAddressType + InetAddress */
   idx += snmp_oid_to_ip(&oid[idx], oid_len-idx, ip);
   if (idx == 0) {
@@ -581,7 +581,7 @@ snmp_oid_combine(struct snmp_obj_id* target, const u32_t *oid1, u8_t oid1_len, c
  * @param oid
  * @param oid_len
  */
-void 
+void
 snmp_oid_append(struct snmp_obj_id* target, const u32_t *oid, u8_t oid_len)
 {
   LWIP_ASSERT("offset + oid_len <= LWIP_SNMP_OBJ_ID_LEN", (target->len + oid_len) <= SNMP_MAX_OBJ_ID_LEN);
@@ -629,7 +629,7 @@ snmp_oid_compare(const u32_t *oid1, u8_t oid1_len, const u32_t *oid2, u8_t oid2_
   }
 
   /* they are equal */
-  return 0;   
+  return 0;
 }
 
 
@@ -772,7 +772,7 @@ snmp_get_node_instance_from_oid(const u32_t *oid, u8_t oid_len, struct snmp_node
   mib = snmp_get_mib_from_oid(oid, oid_len);
   if (mib != NULL) {
     u8_t oid_instance_len;
-      
+
     mn = snmp_mib_tree_resolve_exact(mib, oid, oid_len, &oid_instance_len);
     if ((mn != NULL) && (mn->node_type != SNMP_NODE_TREE)) {
       /* get instance */
@@ -802,7 +802,7 @@ snmp_get_node_instance_from_oid(const u32_t *oid, u8_t oid_len, struct snmp_node
   return result;
 }
 
-u8_t 
+u8_t
 snmp_get_next_node_instance_from_oid(const u32_t *oid, u8_t oid_len, snmp_validate_node_instance_method validate_node_instance_method, void* validate_node_instance_arg, struct snmp_obj_id* node_oid, struct snmp_node_instance* node_instance)
 {
   const struct snmp_mib      *mib;
@@ -828,7 +828,7 @@ snmp_get_next_node_instance_from_oid(const u32_t *oid, u8_t oid_len, snmp_valida
   /* resolve target node from MIB, skip to next MIB if no suitable node is found in current MIB */
   while ((mib != NULL) && (mn == NULL)) {
     u8_t oid_instance_len;
-    
+
     /* check if OID directly references a node inside current MIB, in this case we have to ask this node for the next instance */
     mn = snmp_mib_tree_resolve_exact(mib, start_oid, start_oid_len, &oid_instance_len);
     if (mn != NULL) {
@@ -881,9 +881,9 @@ snmp_get_next_node_instance_from_oid(const u32_t *oid, u8_t oid_len, snmp_valida
         if (node_instance->release_instance != NULL) {
           node_instance->release_instance(node_instance);
         }
-        /* 
+        /*
         the instance itself is not valid, ask for next instance from same node.
-        we don't have to change any variables because node_instance->instance_oid is used as input (starting point) 
+        we don't have to change any variables because node_instance->instance_oid is used as input (starting point)
         as well as output (resulting next OID), so we have to simply call get_next_instance method again
         */
       } else {
@@ -926,7 +926,7 @@ snmp_get_next_node_instance_from_oid(const u32_t *oid, u8_t oid_len, snmp_valida
       }
       /* else { we found out target node } */
     } else {
-      /* 
+      /*
       there is no further (suitable) node inside this MIB, search for the next MIB with following priority
       1. search for inner MIB's (whose root is located inside tree of current MIB)
       2. search for surrouding MIB's (where the current MIB is the inner MIB) and continue there if any
@@ -1004,11 +1004,11 @@ snmp_mib_tree_resolve_exact(const struct snmp_mib *mib, const u32_t *oid, u8_t o
     *oid_instance_len = oid_len - oid_offset;
     return (*node);
   }
-  
+
   return NULL;
 }
 
-const struct snmp_node* 
+const struct snmp_node*
 snmp_mib_tree_resolve_next(const struct snmp_mib *mib, const u32_t *oid, u8_t oid_len, struct snmp_obj_id* oidret)
 {
   u8_t  oid_offset = mib->base_oid_len;
@@ -1099,7 +1099,7 @@ snmp_mib_tree_resolve_next(const struct snmp_mib *mib, const u32_t *oid, u8_t oi
       }
     }
   }
-  
+
   return NULL;
 }
 
@@ -1140,7 +1140,7 @@ snmp_next_oid_precheck(struct snmp_next_oid_state *state, const u32_t *oid, cons
 }
 
 /** checks the passed OID if it is a candidate to be the next one (get_next); returns !=0 if passed oid is currently closest, otherwise 0 */
-u8_t 
+u8_t
 snmp_next_oid_check(struct snmp_next_oid_state *state, const u32_t *oid, const u8_t oid_len, void* reference)
 {
   /* do not overwrite a fail result */

src/apps/snmp/snmp_mib2_interfaces.c

@@ -58,7 +58,7 @@
 
 /* --- interfaces .1.3.6.1.2.1.2 ----------------------------------------------------- */
 
-static s16_t 
+static s16_t
 interfaces_get_value(struct snmp_node_instance* instance, void* value)
 {
   if (instance->node->oid == 1) {
@@ -131,7 +131,7 @@ interfaces_Table_get_next_cell_instance(const u32_t* column, struct snmp_obj_id*
   u32_t result_temp[LWIP_ARRAYSIZE(interfaces_Table_oid_ranges)];
 
   LWIP_UNUSED_ARG(column);
-  
+
   /* init struct to search next oid */
   snmp_next_oid_init(&state, row_oid->id, row_oid->len, result_temp, LWIP_ARRAYSIZE(interfaces_Table_oid_ranges));
 
@@ -289,11 +289,10 @@ interfaces_Table_set_test(struct snmp_node_instance* instance, u16_t len, void *
   LWIP_ASSERT("Invalid column", (SNMP_TABLE_GET_COLUMN_FROM_OID(instance->instance_oid.id) == 7));
   LWIP_UNUSED_ARG(len);
 
-  if (*sint_ptr == 1 || *sint_ptr == 2)
+  if (*sint_ptr == 1 || *sint_ptr == 2) {
-  {
     return SNMP_ERR_NOERROR;
   }
-    
+
   return SNMP_ERR_WRONGVALUE;
 }
 
@@ -352,17 +351,17 @@ static const struct snmp_table_col_def interfaces_Table_columns[] = {
 
 #if !SNMP_SAFE_REQUESTS
 static const struct snmp_table_node interfaces_Table = SNMP_TABLE_CREATE(
-  2, interfaces_Table_columns, 
+  2, interfaces_Table_columns,
-  interfaces_Table_get_cell_instance, interfaces_Table_get_next_cell_instance, 
+  interfaces_Table_get_cell_instance, interfaces_Table_get_next_cell_instance,
   interfaces_Table_get_value, interfaces_Table_set_test, interfaces_Table_set_value);
 #else
 static const struct snmp_table_node interfaces_Table = SNMP_TABLE_CREATE(
-  2, interfaces_Table_columns, 
+  2, interfaces_Table_columns,
-  interfaces_Table_get_cell_instance, interfaces_Table_get_next_cell_instance, 
+  interfaces_Table_get_cell_instance, interfaces_Table_get_next_cell_instance,
   interfaces_Table_get_value, NULL, NULL);
 #endif
 
-/* the following nodes access variables in LWIP stack from SNMP worker thread and must therefore be synced to LWIP (TCPIP) thread */ 
+/* the following nodes access variables in LWIP stack from SNMP worker thread and must therefore be synced to LWIP (TCPIP) thread */
 CREATE_LWIP_SYNC_NODE(1, interfaces_Number)
 CREATE_LWIP_SYNC_NODE(2, interfaces_Table)
 

src/apps/snmp/snmp_mib2_ip.c

@@ -58,7 +58,7 @@
 #if LWIP_IPV4
 /* --- ip .1.3.6.1.2.1.4 ----------------------------------------------------- */
 
-static s16_t 
+static s16_t
 ip_get_value(struct snmp_node_instance* instance, void* value)
 {
   s32_t* sint_ptr = (s32_t*)value;
@@ -304,7 +304,7 @@ ip_AddrTable_get_next_cell_instance_and_value(const u32_t* column, struct snmp_o
     /* fill in object properties */
     return ip_AddrTable_get_cell_value_core((struct netif*)state.reference, column, value, value_len);
   }
-  
+
   /* not found */
   return SNMP_ERR_NOSUCHINSTANCE;
 }
@@ -464,7 +464,7 @@ ip_RouteTable_get_next_cell_instance_and_value(const u32_t* column, struct snmp_
       snmp_ip4_to_oid(&dst, &test_oid[0]);
       snmp_next_oid_check(&state, test_oid, LWIP_ARRAYSIZE(ip_RouteTable_oid_ranges), netif);
     }
-    
+
     netif = netif->next;
   }
 
@@ -660,7 +660,7 @@ static const struct snmp_table_simple_node ip_NetToMediaTable = SNMP_TABLE_CREAT
 #endif /* LWIP_ARP && LWIP_IPV4 */
 
 #if LWIP_IPV4
-/* the following nodes access variables in LWIP stack from SNMP worker thread and must therefore be synced to LWIP (TCPIP) thread */ 
+/* the following nodes access variables in LWIP stack from SNMP worker thread and must therefore be synced to LWIP (TCPIP) thread */
 CREATE_LWIP_SYNC_NODE( 1, ip_Forwarding)
 CREATE_LWIP_SYNC_NODE( 2, ip_DefaultTTL)
 CREATE_LWIP_SYNC_NODE( 3, ip_InReceives)
@@ -730,7 +730,7 @@ static const struct snmp_table_simple_col_def at_Table_columns[] = {
 
 static const struct snmp_table_simple_node at_Table = SNMP_TABLE_CREATE_SIMPLE(1, at_Table_columns, ip_NetToMediaTable_get_cell_value, ip_NetToMediaTable_get_next_cell_instance_and_value);
 
-/* the following nodes access variables in LWIP stack from SNMP worker thread and must therefore be synced to LWIP (TCPIP) thread */ 
+/* the following nodes access variables in LWIP stack from SNMP worker thread and must therefore be synced to LWIP (TCPIP) thread */
 CREATE_LWIP_SYNC_NODE(1, at_Table)
 
 static const struct snmp_node* const at_nodes[] = {

src/apps/snmp/snmp_mib2_snmp.c

@@ -188,7 +188,7 @@ snmp_set_value(const struct snmp_scalar_array_node_def *node, u16_t len, void *v
   return SNMP_ERR_NOERROR;
 }
 
-/* the following nodes access variables in SNMP stack (snmp_stats) from SNMP worker thread -> OK, no sync needed */ 
+/* the following nodes access variables in SNMP stack (snmp_stats) from SNMP worker thread -> OK, no sync needed */
 static const struct snmp_scalar_array_node_def snmp_nodes[] = {
   { 1, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},  /* snmpInPkts */
   { 2, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},  /* snmpOutPkts */

src/apps/snmp/snmp_mib2_system.c

@@ -106,7 +106,7 @@ snmp_mib2_set_sysdescr(const u8_t *str, const u16_t *len)
  * Initializes sysContact pointers
  *
  * @param ocstr if non-NULL then copy str pointer
- * @param ocstrlen points to string length, excluding zero terminator. 
+ * @param ocstrlen points to string length, excluding zero terminator.
  *        if set to NULL it is assumed that ocstr is NULL-terminated.
  * @param bufsize size of the buffer in bytes.
  *        (this is required because the buffer can be overwritten by snmp-set)
@@ -148,7 +148,7 @@ snmp_mib2_set_syscontact_readonly(const u8_t *ocstr, const u16_t *ocstrlen)
  * Initializes sysName pointers
  *
  * @param ocstr if non-NULL then copy str pointer
- * @param ocstrlen points to string length, excluding zero terminator. 
+ * @param ocstrlen points to string length, excluding zero terminator.
  *        if set to NULL it is assumed that ocstr is NULL-terminated.
  * @param bufsize size of the buffer in bytes.
  *        (this is required because the buffer can be overwritten by snmp-set)
@@ -189,7 +189,7 @@ snmp_mib2_set_sysname_readonly(const u8_t *ocstr, const u16_t *ocstrlen)
  * Initializes sysLocation pointers
  *
  * @param ocstr if non-NULL then copy str pointer
- * @param ocstrlen points to string length, excluding zero terminator. 
+ * @param ocstrlen points to string length, excluding zero terminator.
  *        if set to NULL it is assumed that ocstr is NULL-terminated.
  * @param bufsize size of the buffer in bytes.
  *        (this is required because the buffer can be overwritten by snmp-set)
@@ -278,7 +278,7 @@ system_get_value(const struct snmp_scalar_array_node_def *node, void *value)
   return result;
 }
 
-static snmp_err_t 
+static snmp_err_t
 system_set_test(const struct snmp_scalar_array_node_def *node, u16_t len, void *value)
 {
   snmp_err_t ret = SNMP_ERR_WRONGVALUE;
@@ -324,7 +324,7 @@ system_set_test(const struct snmp_scalar_array_node_def *node, u16_t len, void *
   return ret;
 }
 
-static snmp_err_t 
+static snmp_err_t
 system_set_value(const struct snmp_scalar_array_node_def *node, u16_t len, void *value)
 {
   u8_t*  var_wr = NULL;

src/apps/snmp/snmp_mib2_tcp.c

@@ -58,7 +58,7 @@
 
 /* --- tcp .1.3.6.1.2.1.6 ----------------------------------------------------- */
 
-static s16_t 
+static s16_t
 tcp_get_value(struct snmp_node_instance* instance, void* value)
 {
   u32_t *uint_ptr = (u32_t*)value;
@@ -154,7 +154,7 @@ static const struct snmp_oid_range tcp_ConnTable_oid_ranges[] = {
   { 0, 0xffff }  /* Port */
 };
 
-static snmp_err_t 
+static snmp_err_t
 tcp_ConnTable_get_cell_value_core(struct tcp_pcb *pcb, const u32_t* column, union snmp_variant_value* value, u32_t* value_len)
 {
   LWIP_UNUSED_ARG(value_len);
@@ -212,7 +212,7 @@ tcp_ConnTable_get_cell_value(const u32_t* column, const u32_t* row_oid, u8_t row
   local_port = (u16_t)row_oid[4];
   snmp_oid_to_ip4(&row_oid[5], &remote_ip); /* we know it succeeds because of oid_in_range check above */
   remote_port = (u16_t)row_oid[9];
-  
+
   /* find tcp_pcb with requested ips and ports */
   for (i = 0; i < LWIP_ARRAYSIZE(tcp_pcb_lists); i++) {
     pcb = *tcp_pcb_lists[i];
@@ -261,7 +261,7 @@ tcp_ConnTable_get_next_cell_instance_and_value(const u32_t* column, struct snmp_
     pcb = *tcp_pcb_lists[i];
     while (pcb != NULL) {
       u32_t test_oid[LWIP_ARRAYSIZE(tcp_ConnTable_oid_ranges)];
-            
+
       if (IP_IS_V4_VAL(pcb->local_ip)) {
         snmp_ip4_to_oid(ip_2_ip4(&pcb->local_ip), &test_oid[0]);
         test_oid[4] = pcb->local_port;
@@ -281,7 +281,7 @@ tcp_ConnTable_get_next_cell_instance_and_value(const u32_t* column, struct snmp_
         /* check generated OID: is it a candidate for the next one? */
         snmp_next_oid_check(&state, test_oid, LWIP_ARRAYSIZE(tcp_ConnTable_oid_ranges), pcb);
       }
-    
+
       pcb = pcb->next;
     }
   }
@@ -301,10 +301,10 @@ tcp_ConnTable_get_next_cell_instance_and_value(const u32_t* column, struct snmp_
 
 /* --- tcpConnectionTable --- */
 
-static snmp_err_t 
+static snmp_err_t
 tcp_ConnectionTable_get_cell_value_core(const u32_t* column, struct tcp_pcb *pcb, union snmp_variant_value* value)
 {
-  /* all items except tcpConnectionState and tcpConnectionProcess are declared as not-accessible */   
+  /* all items except tcpConnectionState and tcpConnectionProcess are declared as not-accessible */
   switch (*column) {
   case 7: /* tcpConnectionState */
     value->u32 = pcb->state + 1;
@@ -336,7 +336,7 @@ tcp_ConnectionTable_get_cell_value(const u32_t* column, const u32_t* row_oid, u8
   if (idx == 0) {
     return SNMP_ERR_NOSUCHINSTANCE;
   }
-  
+
   /* tcpConnectionRemAddressType + tcpConnectionRemAddress + tcpConnectionRemPort */
   idx += snmp_oid_to_ip_port(&row_oid[idx], row_oid_len-idx, &remote_ip, &remote_port);
   if (idx == 0) {
@@ -346,7 +346,7 @@ tcp_ConnectionTable_get_cell_value(const u32_t* column, const u32_t* row_oid, u8
   /* find tcp_pcb with requested ip and port*/
   for (i = 0; i < LWIP_ARRAYSIZE(tcp_pcb_nonlisten_lists); i++) {
     pcb = *tcp_pcb_nonlisten_lists[i];
-    
+
     while (pcb != NULL) {
       if (ip_addr_cmp(&local_ip, &pcb->local_ip) &&
          (local_port == pcb->local_port) &&
@@ -358,9 +358,9 @@ tcp_ConnectionTable_get_cell_value(const u32_t* column, const u32_t* row_oid, u8
       pcb = pcb->next;
     }
   }
-  
+
   /* not found */
-  return SNMP_ERR_NOSUCHINSTANCE;  
+  return SNMP_ERR_NOSUCHINSTANCE;
 }
 
 static snmp_err_t
@@ -395,11 +395,11 @@ tcp_ConnectionTable_get_next_cell_instance_and_value(const u32_t* column, struct
 
       /* check generated OID: is it a candidate for the next one? */
       snmp_next_oid_check(&state, test_oid, idx, pcb);
-    
+
       pcb = pcb->next;
     }
   }
-  
+
   /* did we find a next one? */
   if (state.status == SNMP_NEXT_OID_STATUS_SUCCESS) {
     snmp_oid_assign(row_oid, state.next_oid, state.next_oid_len);
@@ -413,10 +413,10 @@ tcp_ConnectionTable_get_next_cell_instance_and_value(const u32_t* column, struct
 
 /* --- tcpListenerTable --- */
 
-static snmp_err_t 
+static snmp_err_t
 tcp_ListenerTable_get_cell_value_core(const u32_t* column, union snmp_variant_value* value)
 {
-  /* all items except tcpListenerProcess are declared as not-accessible */   
+  /* all items except tcpListenerProcess are declared as not-accessible */
   switch (*column) {
   case 4: /* tcpListenerProcess */
     value->u32 = 0; /* not supported */
@@ -443,7 +443,7 @@ tcp_ListenerTable_get_cell_value(const u32_t* column, const u32_t* row_oid, u8_t
   if (idx == 0) {
     return SNMP_ERR_NOSUCHINSTANCE;
   }
-  
+
   /* find tcp_pcb with requested ip and port*/
   pcb = tcp_listen_pcbs.listen_pcbs;
   while (pcb != NULL) {
@@ -456,7 +456,7 @@ tcp_ListenerTable_get_cell_value(const u32_t* column, const u32_t* row_oid, u8_t
   }
 
   /* not found */
-  return SNMP_ERR_NOSUCHINSTANCE;  
+  return SNMP_ERR_NOSUCHINSTANCE;
 }
 
 static snmp_err_t
@@ -477,13 +477,13 @@ tcp_ListenerTable_get_next_cell_instance_and_value(const u32_t* column, struct s
   while (pcb != NULL) {
     u8_t idx = 0;
     u32_t test_oid[LWIP_ARRAYSIZE(result_temp)];
-            
+
     /* tcpListenerLocalAddressType + tcpListenerLocalAddress + tcpListenerLocalPort */
     idx += snmp_ip_port_to_oid(&pcb->local_ip, pcb->local_port, &test_oid[idx]);
 
     /* check generated OID: is it a candidate for the next one? */
     snmp_next_oid_check(&state, test_oid, idx, NULL);
-    
+
     pcb = pcb->next;
   }
 
@@ -528,7 +528,7 @@ static const struct snmp_table_simple_node tcp_ConnTable = SNMP_TABLE_CREATE_SIM
 #endif /* LWIP_IPV4 */
 
 static const struct snmp_table_simple_col_def tcp_ConnectionTable_columns[] = {
-  /* all items except tcpConnectionState and tcpConnectionProcess are declared as not-accessible */   
+  /* all items except tcpConnectionState and tcpConnectionProcess are declared as not-accessible */
   { 7, SNMP_ASN1_TYPE_INTEGER,    SNMP_VARIANT_VALUE_TYPE_U32 }, /* tcpConnectionState */
   { 8, SNMP_ASN1_TYPE_UNSIGNED32, SNMP_VARIANT_VALUE_TYPE_U32 }  /* tcpConnectionProcess */
 };
@@ -537,13 +537,13 @@ static const struct snmp_table_simple_node tcp_ConnectionTable = SNMP_TABLE_CREA
 
 
 static const struct snmp_table_simple_col_def tcp_ListenerTable_columns[] = {
-  /* all items except tcpListenerProcess are declared as not-accessible */   
+  /* all items except tcpListenerProcess are declared as not-accessible */
   { 4, SNMP_ASN1_TYPE_UNSIGNED32, SNMP_VARIANT_VALUE_TYPE_U32 }  /* tcpListenerProcess */
 };
 
 static const struct snmp_table_simple_node tcp_ListenerTable = SNMP_TABLE_CREATE_SIMPLE(20, tcp_ListenerTable_columns, tcp_ListenerTable_get_cell_value, tcp_ListenerTable_get_next_cell_instance_and_value);
 
-/* the following nodes access variables in LWIP stack from SNMP worker thread and must therefore be synced to LWIP (TCPIP) thread */ 
+/* the following nodes access variables in LWIP stack from SNMP worker thread and must therefore be synced to LWIP (TCPIP) thread */
 CREATE_LWIP_SYNC_NODE( 1, tcp_RtoAlgorithm)
 CREATE_LWIP_SYNC_NODE( 2, tcp_RtoMin)
 CREATE_LWIP_SYNC_NODE( 3, tcp_RtoMax)

src/apps/snmp/snmp_mib2_udp.c

@@ -57,7 +57,7 @@
 
 /* --- udp .1.3.6.1.2.1.7 ----------------------------------------------------- */
 
-static s16_t 
+static s16_t
 udp_get_value(struct snmp_node_instance* instance, void* value)
 {
   u32_t *uint_ptr = (u32_t*)value;
@@ -91,10 +91,10 @@ udp_get_value(struct snmp_node_instance* instance, void* value)
 
 /* --- udpEndpointTable --- */
 
-static snmp_err_t 
+static snmp_err_t
 udp_endpointTable_get_cell_value_core(const u32_t* column, union snmp_variant_value* value)
 {
-  /* all items except udpEndpointProcess are declared as not-accessible */   
+  /* all items except udpEndpointProcess are declared as not-accessible */
   switch (*column) {
   case 8: /* udpEndpointProcess */
     value->u32 = 0; /* not supported */
@@ -106,7 +106,7 @@ udp_endpointTable_get_cell_value_core(const u32_t* column, union snmp_variant_va
   return SNMP_ERR_NOERROR;
 }
 
-static snmp_err_t 
+static snmp_err_t
 udp_endpointTable_get_cell_value(const u32_t* column, const u32_t* row_oid, u8_t row_oid_len, union snmp_variant_value* value, u32_t* value_len)
 {
   ip_addr_t local_ip, remote_ip;

src/core/ipv4/autoip.c

@@ -110,7 +110,7 @@ autoip_set_struct(struct netif *netif, struct autoip *autoip)
 {
   LWIP_ASSERT("netif != NULL", netif != NULL);
   LWIP_ASSERT("autoip != NULL", autoip != NULL);
-  LWIP_ASSERT("netif already has a struct autoip set", 
+  LWIP_ASSERT("netif already has a struct autoip set",
               netif_autoip_data(netif) == NULL);
 
   /* clear data structure */
@@ -522,7 +522,7 @@ autoip_supplied_address(const struct netif *netif)
 u8_t
 autoip_accept_packet(struct netif *netif, const ip4_addr_t *addr)
 {
-  struct autoip* autoip = netif_autoip_data(netif);  
+  struct autoip* autoip = netif_autoip_data(netif);
   return (autoip != NULL) && ip4_addr_cmp(addr, &(autoip->llipaddr));
 }
 

src/core/ipv4/dhcp.c

@@ -214,11 +214,11 @@ dhcp_inc_pcb_refcount(void)
     /* set up local and remote port for the pcb -> listen on all interfaces on all src/dest IPs */
     udp_bind(dhcp_pcb, IP_ADDR_ANY, DHCP_CLIENT_PORT);
     udp_connect(dhcp_pcb, IP_ADDR_ANY, DHCP_SERVER_PORT);
-    udp_recv(dhcp_pcb, dhcp_recv, NULL);  
+    udp_recv(dhcp_pcb, dhcp_recv, NULL);
   }
 
   dhcp_pcb_refcount++;
-  
+
   return ERR_OK;
 }
 
@@ -228,7 +228,7 @@ dhcp_dec_pcb_refcount(void)
 {
   LWIP_ASSERT("dhcp_pcb_refcount(): refcount error", (dhcp_pcb_refcount > 0));
   dhcp_pcb_refcount--;
-  
+
   if (dhcp_pcb_refcount == 0) {
     udp_remove(dhcp_pcb);
     dhcp_pcb = NULL;
@@ -728,7 +728,7 @@ dhcp_start(struct netif *netif)
       LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_start(): could not allocate dhcp\n"));
       return ERR_MEM;
     }
-    
+
     /* store this dhcp client in the netif */
     netif->client_data[LWIP_NETIF_CLIENT_DATA_INDEX_DHCP] = dhcp;
     LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_start(): allocated dhcp"));
@@ -748,7 +748,7 @@ dhcp_start(struct netif *netif)
   memset(dhcp, 0, sizeof(struct dhcp));
   /* dhcp_set_state(&dhcp, DHCP_STATE_OFF); */
 
-  LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_start(): starting DHCP configuration\n"));  
+  LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_start(): starting DHCP configuration\n"));
 
   if (dhcp_inc_pcb_refcount() != ERR_OK) { /* ensure DHCP PCB is allocated */
     return ERR_MEM;
@@ -810,7 +810,7 @@ dhcp_inform(struct netif *netif)
     pbuf_realloc(dhcp.p_out, sizeof(struct dhcp_msg) - DHCP_OPTIONS_LEN + dhcp.options_out_len);
 
     LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_inform: INFORMING\n"));
-    
+
     udp_sendto_if(dhcp_pcb, dhcp.p_out, IP_ADDR_BROADCAST, DHCP_SERVER_PORT, netif);
 
     dhcp_delete_msg(&dhcp);
@@ -1659,7 +1659,7 @@ dhcp_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr,
   struct dhcp_msg *reply_msg = (struct dhcp_msg *)p->payload;
   u8_t msg_type;
   u8_t i;
-  
+
   LWIP_UNUSED_ARG(arg);
 
   /* Caught DHCP message from netif that does not have DHCP enabled? -> not interested */
@@ -1668,7 +1668,7 @@ dhcp_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr,
   }
 
   LWIP_ASSERT("invalid server address type", IP_IS_V4(addr));
-  
+
   LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_recv(pbuf = %p) from DHCP server %"U16_F".%"U16_F".%"U16_F".%"U16_F" port %"U16_F"\n", (void*)p,
     ip4_addr1_16(ip_2_ip4(addr)), ip4_addr2_16(ip_2_ip4(addr)), ip4_addr3_16(ip_2_ip4(addr)), ip4_addr4_16(ip_2_ip4(addr)), port));
   LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("pbuf->len = %"U16_F"\n", p->len));

src/core/ipv6/ip6.c

@@ -452,7 +452,7 @@ ip6_input(struct pbuf *p, struct netif *inp)
     IP6_STATS_INC(ip6.drop);
     return ERR_OK;
   }
-  
+
   /* current header pointer. */
   ip_data.current_ip6_header = ip6hdr;
 

src/core/raw.c

@@ -80,7 +80,7 @@ raw_input_match(struct raw_pcb *pcb, u8_t broadcast)
     return 1;
   }
 #endif /* LWIP_IPV4 && LWIP_IPV6 */
-  
+
   /* Only need to check PCB if incoming IP version matches PCB IP version */
   if (IP_ADDR_PCB_VERSION_MATCH_EXACT(pcb, ip_current_dest_addr())) {
 #if LWIP_IPV4
@@ -103,7 +103,7 @@ raw_input_match(struct raw_pcb *pcb, u8_t broadcast)
       return 1;
     }
   }
-  
+
   return 0;
 }
 

src/core/tcp_in.c

@@ -199,7 +199,7 @@ tcp_input(struct pbuf *p, struct netif *inp)
 
     /* remember the pointer to the second part of the options */
     tcphdr_opt2 = (u8_t*)p->next->payload;
-    
+
     /* advance p->next to point after the options, and manually
         adjust p->tot_len to keep it consistent with the changed p->next */
     pbuf_header(p->next, -(s16_t)opt2len);

src/core/udp.c

@@ -191,7 +191,7 @@ udp_input_local_match(struct udp_pcb *pcb, struct netif *inp, u8_t broadcast)
       return 1;
     }
   }
-  
+
   return 0;
 }
 

src/include/lwip/api.h

@@ -327,7 +327,7 @@ err_t   netconn_gethostbyname(const char *name, ip_addr_t *addr);
 
 #if LWIP_IPV6
 /** @ingroup netconn_common
- * TCP: Set the IPv6 ONLY status of netconn calls (see NETCONN_FLAG_IPV6_V6ONLY) 
+ * TCP: Set the IPv6 ONLY status of netconn calls (see NETCONN_FLAG_IPV6_V6ONLY)
  */
 #define netconn_set_ipv6only(conn, val)  do { if(val) { \
   (conn)->flags |= NETCONN_FLAG_IPV6_V6ONLY; \

src/include/lwip/apps/mdns_opts.h

@@ -36,7 +36,7 @@
  */
 
 #ifndef LWIP_HDR_APPS_MDNS_OPTS_H
-#define	LWIP_HDR_APPS_MDNS_OPTS_H
+#define LWIP_HDR_APPS_MDNS_OPTS_H
 
 #include "lwip/opt.h"
 
@@ -70,5 +70,5 @@
  * @}
  */
 
-#endif	/* LWIP_HDR_APPS_MDNS_OPTS_H */
+#endif /* LWIP_HDR_APPS_MDNS_OPTS_H */
 

src/include/lwip/apps/snmp_core.h

@@ -200,7 +200,7 @@ struct snmp_node_instance
   u8_t asn1_type;
   /** one out of instance access types defined above (SNMP_NODE_INSTANCE_READ_ONLY,...) */
   snmp_access_t access;
-  
+
   /** returns object value for the given object identifier. Return values <0 to indicate an error */
   node_instance_get_value_method get_value;
   /** tests length and/or range BEFORE setting */
@@ -278,7 +278,7 @@ struct snmp_next_oid_state
   u32_t* next_oid;
   u8_t next_oid_len;
   u8_t next_oid_max_len;
-  
+
   snmp_next_oid_status_t status;
   void* reference;
 };

src/include/lwip/apps/snmp_table.h

@@ -85,7 +85,7 @@ snmp_err_t snmp_table_get_next_instance(const u32_t *root_oid, u8_t root_oid_len
 
 #define SNMP_TABLE_GET_COLUMN_FROM_OID(oid) ((oid)[1]) /* first array value is (fixed) row entry (fixed to 1) and 2nd value is column, follow3ed by instance */
 
-  
+
 /** simple read-only table */
 typedef enum {
   SNMP_VARIANT_VALUE_TYPE_U32,

src/include/lwip/arch.h

@@ -48,7 +48,7 @@
 #include "arch/cc.h"
 
 /** Define this to 1 in arch/cc.h of your port if your compiler does not provide
- * the stdint.h header. This cannot be \#defined in lwipopts.h since 
+ * the stdint.h header. This cannot be \#defined in lwipopts.h since
  * this is not an option of lwIP itself, but an option of the lwIP port
  * to your system.
  * Additionally, this header is meant to be \#included in lwipopts.h
@@ -71,7 +71,7 @@ typedef uintptr_t mem_ptr_t;
 #endif
 
 /** Define this to 1 in arch/cc.h of your port if your compiler does not provide
- * the inttypes.h header. This cannot be \#defined in lwipopts.h since 
+ * the inttypes.h header. This cannot be \#defined in lwipopts.h since
  * this is not an option of lwIP itself, but an option of the lwIP port
  * to your system.
  * Additionally, this header is meant to be \#included in lwipopts.h

src/include/lwip/err.h

@@ -60,7 +60,7 @@ typedef s8_t err_t;
 /** Definitions for error constants. */
 typedef enum {
 /** No error, everything OK. */
-  ERR_OK         = 0, 
+  ERR_OK         = 0,
 /** Out of memory error.     */
   ERR_MEM        = -1,
 /** Buffer error.            */

src/include/lwip/etharp.h

@@ -59,7 +59,7 @@ extern "C" {
 #if LWIP_IPV4 && LWIP_ARP /* don't build if not configured for use in lwipopts.h */
 
 #include "lwip/prot/arp.h"
-    
+
 #define SIZEOF_ETHARP_PACKET    (SIZEOF_ETH_HDR + SIZEOF_ETHARP_HDR)
 #if ETHARP_SUPPORT_VLAN && defined(LWIP_HOOK_VLAN_SET)
 #define SIZEOF_ETHARP_PACKET_TX (SIZEOF_ETHARP_PACKET + SIZEOF_VLAN_HDR)

src/include/lwip/icmp6.h

@@ -62,7 +62,7 @@ enum icmp6_type {
   /** Parameter problem */
   ICMP6_TYPE_PP = 4,
   /** Private experimentation */
-  ICMP6_TYPE_PE1 = 100,  
+  ICMP6_TYPE_PE1 = 100,
   /** Private experimentation */
   ICMP6_TYPE_PE2 = 101,
   /** Reserved for expansion of error messages */
@@ -73,7 +73,7 @@ enum icmp6_type {
   /** Echo reply */
   ICMP6_TYPE_EREP = 129,
   /** Multicast listener query */
-  ICMP6_TYPE_MLQ = 130,  
+  ICMP6_TYPE_MLQ = 130,
   /** Multicast listener report */
   ICMP6_TYPE_MLR = 131,
   /** Multicast listener done */

src/include/lwip/ip.h

@@ -248,9 +248,9 @@ extern struct ip_globals ip_data;
         (IP_IS_V6(dest) ? \
         ip6_output_hinted(p, ip_2_ip6(src), ip_2_ip6(dest), ttl, tos, proto, addr_hint) : \
         ip4_output_hinted(p, ip_2_ip4(src), ip_2_ip4(dest), ttl, tos, proto, addr_hint))
-/** 
+/**
  * @ingroup ip
- * Get netif for address combination. See \ref ip6_route and \ref ip4_route 
+ * Get netif for address combination. See \ref ip6_route and \ref ip4_route
  */
 #define ip_route(src, dest) \
         (IP_IS_V6(dest) ? \

src/include/lwip/netif.h

@@ -68,7 +68,7 @@ extern "C" {
  * @ingroup netif
  * @{
  */
-  
+
 /** Whether the network interface is 'up'. This is
  * a software flag used to control whether this network
  * interface is enabled and processes traffic.

src/include/lwip/opt.h

@@ -36,8 +36,8 @@
  *
  */
 
-/* 
+/*
- * NOTE: || defined __DOXYGEN__ is a workaround for doxygen bug - 
+ * NOTE: || defined __DOXYGEN__ is a workaround for doxygen bug -
  * without this, doxygen does not see the actual #define
  */
 
@@ -51,7 +51,7 @@
 #include "lwipopts.h"
 #include "lwip/debug.h"
 
-/** 
+/**
  * @defgroup lwip_opts Options (lwipopts.h)
  * @ingroup lwip
  *

src/include/lwip/priv/tcpip_priv.h

@@ -48,7 +48,7 @@
 #ifdef __cplusplus
 extern "C" {
 #endif
-  
+
 struct pbuf;
 struct netif;
 

src/include/lwip/prot/arp.h

@@ -71,7 +71,7 @@ PACK_STRUCT_END
 #endif
 
 #define SIZEOF_ETHARP_HDR 28
-    
+
 #ifdef __cplusplus
 }
 #endif

src/include/lwip/prot/ethernet.h

@@ -138,7 +138,7 @@ PACK_STRUCT_END
 #ifndef ETHADDR16_COPY
 #define ETHADDR16_COPY(dst, src)  SMEMCPY(dst, src, ETH_HWADDR_LEN)
 #endif
- 
+
 #define eth_addr_cmp(addr1, addr2) (memcmp((addr1)->addr, (addr2)->addr, ETH_HWADDR_LEN) == 0)
 
 #ifdef __cplusplus

src/include/lwip/prot/ip.h

@@ -49,5 +49,3 @@
 #define IP_HDR_GET_VERSION(ptr)   ((*(u8_t*)(ptr)) >> 4)
 
 #endif /* LWIP_HDR_PROT_IP_H */
-
-

src/include/lwip/prot/ip4.h

@@ -46,7 +46,7 @@ extern "C" {
 
 /* Size of the IPv4 header. Same as 'sizeof(struct ip_hdr)'. */
 #define IP_HLEN 20
-  
+
 #ifdef PACK_STRUCT_USE_INCLUDES
 #  include "arch/bpstruct.h"
 #endif
@@ -109,5 +109,3 @@ PACK_STRUCT_END
 #endif
 
 #endif /* LWIP_HDR_PROT_IP4_H */
-
-

src/include/lwip/prot/ip6.h

@@ -146,7 +146,7 @@ PACK_STRUCT_END
 #define IP6H_PLEN_SET(hdr, plen) (hdr)->_plen = htons(plen)
 #define IP6H_NEXTH_SET(hdr, nexth) (hdr)->_nexth = (nexth)
 #define IP6H_HOPLIM_SET(hdr, hl) (hdr)->_hoplim = (u8_t)(hl)
-        
+
 #ifdef __cplusplus
 }
 #endif

src/include/lwip/prot/mld6.h

@@ -62,7 +62,7 @@ PACK_STRUCT_END
 #ifdef PACK_STRUCT_USE_INCLUDES
 #  include "arch/epstruct.h"
 #endif
-    
+
 #ifdef __cplusplus
 }
 #endif

src/include/lwip/prot/tcp.h

@@ -77,7 +77,7 @@ PACK_STRUCT_END
 
 #define TCPH_SET_FLAG(phdr, flags ) (phdr)->_hdrlen_rsvd_flags = ((phdr)->_hdrlen_rsvd_flags | htons(flags))
 #define TCPH_UNSET_FLAG(phdr, flags) (phdr)->_hdrlen_rsvd_flags = ((phdr)->_hdrlen_rsvd_flags & ~htons(flags))
-    
+
 #ifdef __cplusplus
 }
 #endif

src/include/lwip/prot/udp.h

@@ -60,7 +60,7 @@ PACK_STRUCT_END
 #ifdef PACK_STRUCT_USE_INCLUDES
 #  include "arch/epstruct.h"
 #endif
-    
+
 #ifdef __cplusplus
 }
 #endif

src/include/lwip/stats.h

@@ -189,16 +189,16 @@ struct stats_mib2_netif_ctrs {
   /** The number of packets, delivered by this sub-layer to a higher (sub-)layer, which were
    * not addressed to a multicast or broadcast address at this sub-layer */
   u32_t ifinucastpkts;
-  /** The number of packets, delivered by this sub-layer to a higher (sub-)layer, which were 
+  /** The number of packets, delivered by this sub-layer to a higher (sub-)layer, which were
    * addressed to a multicast or broadcast address at this sub-layer */
   u32_t ifinnucastpkts;
-  /** The number of inbound packets which were chosen to be discarded even though no errors had 
+  /** The number of inbound packets which were chosen to be discarded even though no errors had
-   * been detected to prevent their being deliverable to a higher-layer protocol. One possible 
+   * been detected to prevent their being deliverable to a higher-layer protocol. One possible
    * reason for discarding such a packet could be to free up buffer space */
   u32_t ifindiscards;
-  /** For packet-oriented interfaces, the number of inbound packets that contained errors 
+  /** For packet-oriented interfaces, the number of inbound packets that contained errors
    * preventing them from being deliverable to a higher-layer protocol.  For character-
-   * oriented or fixed-length interfaces, the number of inbound transmission units that 
+   * oriented or fixed-length interfaces, the number of inbound transmission units that
    * contained errors preventing them from being deliverable to a higher-layer protocol. */
   u32_t ifinerrors;
   /** For packet-oriented interfaces, the number of packets received via the interface which
@@ -408,7 +408,7 @@ void stats_init(void);
 #define MEMP_STATS_DISPLAY(i)
 #define MEMP_STATS_GET(x, i) 0
 #endif
- 
+
 #if SYS_STATS
 #define SYS_STATS_INC(x) STATS_INC(sys.x)
 #define SYS_STATS_DEC(x) STATS_DEC(sys.x)

src/include/lwip/sys.h

@@ -60,10 +60,10 @@
  * @defgroup sys_prot Critical sections
  * @ingroup sys_layer
  * Used to protect short regions of code against concurrent access.
- * - Your system is a bare-metal system (probably with an RTOS) 
+ * - Your system is a bare-metal system (probably with an RTOS)
  *   and interrupts are under your control:
  *   Implement this as LockInterrupts() / UnlockInterrupts()
- * - Your system uses an RTOS with deferred interrupt handling from a 
+ * - Your system uses an RTOS with deferred interrupt handling from a
  *   worker thread: Implement as a global mutex or lock/unlock scheduler
  * - Your system uses a high-level OS with e.g. POSIX signals:
  *   Implement as a global mutex

src/include/lwip/tcpip.h

@@ -76,7 +76,7 @@ err_t  tcpip_inpkt(struct pbuf *p, struct netif *inp, netif_input_fn input_fn);
 err_t  tcpip_input(struct pbuf *p, struct netif *inp);
 
 err_t  tcpip_callback_with_block(tcpip_callback_fn function, void *ctx, u8_t block);
-/** 
+/**
  * @ingroup lwip_os
  * @see tcpip_callback_with_block
  */

src/netif/ethernetif.c

@@ -266,7 +266,7 @@ ethernetif_input(struct netif *netif)
   /* if no packet could be read, silently ignore this */
   if (p != NULL) {
     /* pass all packets to ethernet_input, which decides what packets it supports */
-    if (netif->input(p, netif) != ERR_OK) { 
+    if (netif->input(p, netif) != ERR_OK) {
       LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
       pbuf_free(p);
       p = NULL;

src/netif/slipif.c

@@ -42,10 +42,10 @@
 /**
  * @defgroup slipif SLIP netif
  * @ingroup addons
- * 
+ *
  * This is an arch independent SLIP netif. The specific serial hooks must be
  * provided by another file. They are sio_open, sio_read/sio_tryread and sio_send
- * 
+ *
  * Usage: This netif can be used in three ways:\n
  *        1) For NO_SYS==0, an RX thread can be used which blocks on sio_read()
  *           until data is received.\n