WARNING: line length of 84 exceeds 80 columns
#56: FILE: net/l2tp/l2tp_core.c:489:
+			idr_replace(&pn->l2tp_v3_session_idr, session, session_key);

total: 0 errors, 1 warnings, 0 checks, 37 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit a5940af35348 ("l2tp: fix l2tp_session_register with colliding l2tpv3 IDs") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 1 warnings, 0 checks, 37 lines checked