WARNING: Unknown link reference 'reproducer:', use 'Link:' or 'Closes:' instead
#46: 
reproducer: https://gist.github.com/mrpre/5ba943fd86367af748b70de99263da4b

total: 0 errors, 1 warnings, 0 checks, 34 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 1b71ca39cf7b ("net: iptunnel: fix stale transport header after GRE/TEB decap") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE FILE_PATH_CHANGES 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, 34 lines checked