Needs rebase. It also reverts #2582 #2581 and I found the following missing ports:

$ git grep "void [^ ]*(int argc, char \*\*argv)"
cpu/native/startup.c:__attribute__((constructor)) static void startup(int argc, char **argv)
examples/rpl_udp/rpl_udp.h:void rpl_udp_init(int argc, char **argv);
examples/rpl_udp/rpl_udp.h:void rpl_udp_set_id(int argc, char **argv);
examples/rpl_udp/rpl_udp.h:void rpl_udp_dodag(int argc, char **argv);
examples/rpl_udp/rpl_udp.h:void udp_server(int argc, char **argv);
examples/rpl_udp/rpl_udp.h:void udp_send(int argc, char **argv);
examples/rpl_udp/rpl_udp.h:void rpl_udp_ignore(int argc, char **argv);
pkg/openwsn/0005-fixes-to-RIOT-adaption.patch:+void openwsn_start_thread(int argc, char **argv) {
pkg/openwsn/0005-fixes-to-RIOT-adaption.patch:+void openwsn_start_thread(int argc, char **argv);
sys/shell/commands/sc_lps331ap.c:void _get_lps331ap_init_handler(int argc, char **argv)
sys/shell/commands/sc_lps331ap.c:void _get_lps331ap_read_handler(int argc, char **argv)
sys/shell/commands/sc_netif.c:void _netif_list(int argc, char **argv)
sys/shell/commands/sc_netif.c:void _netif_send(int argc, char **argv)
sys/shell/commands/sc_netif.c:void _netif_addr(int argc, char **argv)
sys/shell/commands/sc_netif.c:void _netif_chan(int argc, char **argv)
sys/shell/commands/sc_netif.c:void _netif_pan(int argc, char **argv)
sys/shell/commands/sc_transceiver.c:void _transceiver_get_set_pan_handler(int argc, char **argv)
sys/shell/commands/shell_commands.c:extern void _rtc_handler(int argc, char **argv);
sys/shell/commands/shell_commands.c:void _netif_list(int argc, char **argv);
sys/shell/commands/shell_commands.c:void _netif_send(int argc, char **argv);
sys/shell/commands/shell_commands.c:void _netif_addr(int argc, char **argv);
sys/shell/commands/shell_commands.c:void _netif_chan(int argc, char **argv);
sys/shell/commands/shell_commands.c:void _netif_pan(int argc, char **argv);

(I made an error in the previous comment: I meant #2581)

@authmillenon For your second last comment -

cpu/native/startup.c:__attribute__((constructor)) static void startup(int argc, char **argv)
pkg/openwsn/0005-fixes-to-RIOT-adaption.patch:+void openwsn_start_thread(int argc, char **argv) {
pkg/openwsn/0005-fixes-to-RIOT-adaption.patch:+void openwsn_start_th read(int argc, char **argv);

are the one's I was a little concerned about for the two patches I am not supposed to change them or do I have to resubmit the patch ?
for the cpu/native/startup.c code block , it used argc and **argv but then I on first though I think that they can be changed to int , as it uses usage_exit()

Can you explain what exactly is meant by reverting #2581 , does that mean I resolved the merge conflicts while rebasing incorrectly previously ?

are the one's I was a little concerned about for the two patches I am not supposed to change them or do I have to resubmit the patch ?

Just try it and compile examples/default with USEPKG=openwsn, if the patch target does not fail, we are good. As far as I remember git is quite capable of handling changed patch-files.

for the cpu/native/startup.c code block , it used argc and **argv but then I on first though I think that they can be changed to int , as it uses usage_exit()

I think you must not concern yourself with this one. It's a normal UNIX process main (for the native process), so changing them might be harmful to the native port.

Can you explain what exactly is meant by reverting #2581 , does that mean I resolved the merge conflicts while rebasing incorrectly previously ?

Obviously, your changes apply to the version of the commands before this. #2581 reduced the shell handlers for MODULE_NG_NETIF to _netif_config and _netif_send, with _netif_config working similar as _net_if_ifconfig, just with ng_netif instead of net_if ;-)

I tried compiling examples/default with USEPKG=openwsn however even without my changes to it , it failed to compile due to errors like ‘TIMER_1’ undeclared etc. And so I am skipping this in my recent commit.
Also I updated my branch so I think it won't revert the changes anymore.

@thomaseichinger do you know what this is about?

All is well and @authmillenon the work that you suggested has been done(except for changing openwsn patch) , can you suggest what part to do next.

Apart from #2602 (comment) and #2602 (comment) I'm fine with this PR

@authmillenon : Made the changes you suggested in my latest commit.

For the future: please don't squash your changes immediately so it's easier for me to see your updates.

(moreover, travis is already kindof overheated, so I prefer if I can stop the build of out-dated commits ;-), which I can't if you overwrite them)

Apart from that: ACK, when Travis is happy. Please squash (yes, you can overwrite my old commit with your's ;-))

Done squashing . Thanks for letting me use your commit :) ( Now let's see how long Travis takes :P )

Since this is a bigger change, I would prefer if we merge this before #2581 and #2582 #2583 ;).

Kindly restart the build for this one :)

I did already for a hundredth time ^^. There are either reachability issues with github or one of the apt-repositories. I'll keep the tab open :-)

And go.

@kushalsingh007 congratz for this one ;-)

😃 Thanks