tree 0b3b599674b72507137d80bc735c136ef57f3a65
parent 6f4bbd478236a6eec6cef7cd869d858610f24cf8
author Jacob Erlbeck <jerlbeck@sysmocom.de> 1415692513 +0100
committer Holger Hans Peter Freyther <holger@moiji-mobile.com> 1415956352 +0100

sgsn: Don't send XID reset after Detach Accept

Currently when a Detach Accept is received for an unknown TLLI (which
is in general the case afer the SGSN has requested the detachment),
an XID reset is sent to the BSS, causing a BSSGP Status message. This
happens in gsm0408_rcv_gmm.

This patch moves the corresponding call to gprs_llgmm_reset downwards
so that it is not being called in that case.

Addresses:
SGSN->BSS TLLI: 0xd75b91d9 SAPI: LLGMM, UI (DTAP) (GMM) Detach Request
BSS->SGSN TLLI: 0xd75b91d9 SAPI: LLGMM, UI (DTAP) (GMM) Detach Accept
SGSN->BSS TLLI: 0xd75b91d9 SAPI: LLGMM, U, XID (Reset, IOV-UI)
BSS->SGSN TLLI: ---        BSSGP STATUS (Unknown MS)

Sponsored-by: On-Waves ehf