WARNING: line length of 81 exceeds 80 columns
#74: FILE: tools/testing/selftests/bpf/prog_tests/tailcalls.c:1588:
+	err = bpf_program__set_attach_target(freplace_skel->progs.entry_freplace,

WARNING: line length of 89 exceeds 80 columns
#85: FILE: tools/testing/selftests/bpf/prog_tests/tailcalls.c:1599:
+	freplace_link = bpf_program__attach_freplace(freplace_skel->progs.entry_freplace,

WARNING: line length of 89 exceeds 80 columns
#112: FILE: tools/testing/selftests/bpf/prog_tests/tailcalls.c:1626:
+	freplace_link = bpf_program__attach_freplace(freplace_skel->progs.entry_freplace,

WARNING: line length of 89 exceeds 80 columns
#123: FILE: tools/testing/selftests/bpf/prog_tests/tailcalls.c:1637:
+	freplace_link = bpf_program__attach_freplace(freplace_skel->progs.entry_freplace,

total: 0 errors, 4 warnings, 0 checks, 161 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 fe56bd7e3001 ("selftests/bpf: Add a test case to confirm a tailcall infinite loop issue has been prevented") 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, 4 warnings, 0 checks, 161 lines checked