[M] Change in osmocom-bb[master]: LAPDm: Enable flag to prevent sending two subsequent REJ frame

Attention is currently required from: jolly.

fixeria has posted comments on this change. ( https://gerrit.osmocom.org/c/osmocom-bb/+/35130?usp=email )

Change subject: LAPDm: Enable flag to prevent sending two subsequent REJ frame ......................................................................

Patch Set 1:

(2 comments)

Commit Message:

https://gerrit.osmocom.org/c/osmocom-bb/+/35130/comment/53b38d38_04f87860 PS1, Line 9: required required add a flag to prevent writing two subsequent `required`? ;)

https://gerrit.osmocom.org/c/osmocom-bb/+/35130/comment/a1d39d39_cfbb9c6a PS1, Line 47: the TTCN3 test case Is this relevant to osmocom-bb? Which TTCN-3 testcase exactly?