WARNING: line length of 115 exceeds 80 columns
#32: FILE: net/core/dev.c:9508:
+				NL_SET_ERR_MSG(extack, "Cannot attach when an upper device already has a program");

total: 0 errors, 1 warnings, 0 checks, 16 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 18d81f287d95 ("net: Don't allow to attach xdp if bond slave device's upper already has a program") 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, 16 lines checked