examples: use global gnrc_pktdump_pid

examples/default/main.c

@@ -55,7 +55,7 @@ int main(void)
 #ifdef MODULE_NETIF
     gnrc_netreg_entry_t dump;
 
-    dump.pid = gnrc_pktdump_getpid();
+    dump.pid = gnrc_pktdump_pid;
     dump.demux_ctx = GNRC_NETREG_DEMUX_CTX_ALL;
     gnrc_netreg_register(GNRC_NETTYPE_UNDEF, &dump);
 #endif

examples/gnrc_networking/udp.c

@@ -103,7 +103,7 @@ static void start_server(char *port_str)
         return;
     }
     /* start server (which means registering pktdump for the chosen port) */
-    server.pid = gnrc_pktdump_getpid();
+    server.pid = gnrc_pktdump_pid;
     server.demux_ctx = (uint32_t)port;
     gnrc_netreg_register(GNRC_NETTYPE_UDP, &server);
     printf("Success: started UDP server on port %" PRIu16 "\n", port);