Change in osmo-sgsn[master]: gprs_gmm_fsm.c: Implement RAT change between 2g and 3g

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pespin gerrit-no-reply at lists.osmocom.org
Thu Jan 23 11:06:31 UTC 2020


pespin has posted comments on this change. ( https://gerrit.osmocom.org/c/osmo-sgsn/+/15487 )

Change subject: gprs_gmm_fsm.c: Implement RAT change between 2g and 3g
......................................................................


Patch Set 11:

(4 comments)

https://gerrit.osmocom.org/c/osmo-sgsn/+/15487/11/src/sgsn/gprs_gmm.c 
File src/sgsn/gprs_gmm.c:

https://gerrit.osmocom.org/c/osmo-sgsn/+/15487/11/src/sgsn/gprs_gmm.c@1644 
PS11, Line 1644: 	if (MSG_IU_UE_CTX(msg) && mmctx->ran_type != MM_CTX_T_UTRAN_Iu)
> Do we also want to trigger a RAT change for other messages (like service request, ... […]
we need to find out before merging this patch blindly.


https://gerrit.osmocom.org/c/osmo-sgsn/+/15487/11/src/sgsn/gprs_gmm.c@1649 
PS11, Line 1649: 	osmo_fsm_inst_dispatch(mmctx->gmm_fsm, E_GMM_COMMON_PROC_INIT_REQ, NULL);
> Good question, I'm not really sure. […]
So we need to find out before merging this patch blindly.


https://gerrit.osmocom.org/c/osmo-sgsn/+/15487/11/src/sgsn/gprs_gmm.c@1663 
PS11, Line 1663: 		if (!mmctx->gb.llme)
> I'd the pass a proper struct as user pointer to osmo_fsm_inst_dispatch() with the new ran_type and l […]
Agree, you probably want to pass new_rat_type, llme and msg.


https://gerrit.osmocom.org/c/osmo-sgsn/+/15487/11/src/sgsn/gprs_gmm_fsm.c 
File src/sgsn/gprs_gmm_fsm.c:

https://gerrit.osmocom.org/c/osmo-sgsn/+/15487/11/src/sgsn/gprs_gmm_fsm.c@165 
PS11, Line 165: 			gmm_fsm_state_chg(fi, ST_GMM_DEREGISTERED);
I'm wondering whether the mmctx ran type needs to be set here too, or some stuff needs to be deallocated (since there's no .onenter function for that state).



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Gerrit-Project: osmo-sgsn
Gerrit-Branch: master
Gerrit-Change-Id: I3fc614da6ba137e871ee0fe86ca22b6a4a354dd2
Gerrit-Change-Number: 15487
Gerrit-PatchSet: 11
Gerrit-Owner: lynxis lazus <lynxis at fe80.eu>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: daniel <dwillmann at sysmocom.de>
Gerrit-Reviewer: lynxis lazus <lynxis at fe80.eu>
Gerrit-CC: fixeria <axilirator at gmail.com>
Gerrit-CC: laforge <laforge at osmocom.org>
Gerrit-CC: pespin <pespin at sysmocom.de>
Gerrit-Comment-Date: Thu, 23 Jan 2020 11:06:31 +0000
Gerrit-HasComments: Yes
Gerrit-Has-Labels: No
Comment-In-Reply-To: pespin <pespin at sysmocom.de>
Comment-In-Reply-To: daniel <dwillmann at sysmocom.de>
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