mem_test() and mem_set() recursive calls?

Hi everyone,

I'm using the RL-TCPNet in standalone mode (i.e. without a RTOS) and DHCP is enabled. I call the mem_test() function to determine if the DHCP-assigned IP address is valid. When I generated a callgraph from the compiler, it says that mem_test() and mem_set() are recursive calls, see info below. Note that I don't call mem_set() directly, it's called by a bunch of RL-TCPNet commands including itself.

Has anyone noticed this before? I'm leary of recursive functions in embedded applications, has anyone noticed any problems from these calls?

Thanks,

Lei Zong
------------------------

mem_test (Thumb, 18 bytes, Stack size 0 bytes, at_lib.o(i.mem_test))

[Calls]

>> mem_test

[Called By]
>> ethernetTask (via BLX)
>> ip_get_locadr
>> mem_test

mem_set (Thumb, 10 bytes, Stack size 0 bytes, at_lib.o(i.mem_set))

[Calls]

>> mem_set

[Called By]
>> proc_opt_req
>> dhcp_send_message
>> dhcp_listener
>> udp_release_socket
>> mem_set
>> udp_init
>> tcp_init
>> dhcp_run_client
>> dhcp_init
>> tcp_listen