osmith has submitted this change. ( https://gerrit.osmocom.org/c/osmo-msc/+/43625?usp=email )

Change subject: SMS: fix bogus error for SMS over SG from MME ......................................................................

SMS: fix bogus error for SMS over SG from MME

OsmoMSC accepts SMS over the SG interface from the MME and can successfully send them. Fix that the following error gets logged along with every SMS from SG:

MO SMS without prior CM Service Request (gsm_04_11.c:1127)

Fixes: OS#6207 Change-Id: Id3f9c6c20e6d4d4275ca16fb17b0822a7d70e0a0 --- M src/libmsc/gsm_04_11.c 1 file changed, 8 insertions(+), 3 deletions(-)

Approvals: laforge: Looks good to me, but someone else must approve fixeria: Looks good to me, approved Jenkins Builder: Verified

diff --git a/src/libmsc/gsm_04_11.c b/src/libmsc/gsm_04_11.c index 530ef17..fb04b45 100644 --- a/src/libmsc/gsm_04_11.c +++ b/src/libmsc/gsm_04_11.c @@ -1123,10 +1123,15 @@

osmo_fsm_inst_dispatch(msc_a->c.fi, MSC_A_EV_TRANSACTION_ACCEPTED, trans); if (mo) { - if (!osmo_use_count_by(&msc_a->use_count, MSC_A_USE_CM_SERVICE_SMS)) - LOG_TRANS(trans, LOGL_ERROR, "MO SMS without prior CM Service Request\n"); - else + if (!osmo_use_count_by(&msc_a->use_count, MSC_A_USE_CM_SERVICE_SMS)) { + if (vsub->attached_via_ran == OSMO_RAT_EUTRAN_SGS) { + /* SMS over the SG interface from MME (OS#6207) */ + } else { + LOG_TRANS(trans, LOGL_ERROR, "MO SMS without prior CM Service Request\n"); + } + } else { msc_a_put(msc_a, MSC_A_USE_CM_SERVICE_SMS); + } }

/* If we're re-using the existing LU connection, drop the LU token.