WARNING: line length of 82 exceeds 80 columns
#52: FILE: tools/testing/selftests/bpf/prog_tests/btf_dedup_split.c:56:
+	btf__add_struct(btf2, "s2", 16);		/* [5] struct s2 {	*/

WARNING: line length of 82 exceeds 80 columns
#53: FILE: tools/testing/selftests/bpf/prog_tests/btf_dedup_split.c:57:
+	btf__add_field(btf2, "f1", 7, 0, 0);		/*      struct s1 f1;	*/

WARNING: line length of 82 exceeds 80 columns
#54: FILE: tools/testing/selftests/bpf/prog_tests/btf_dedup_split.c:58:
+	btf__add_field(btf2, "f2", 6, 32, 0);		/*      int f2;		*/

WARNING: do not add new typedefs
#111: FILE: tools/testing/selftests/bpf/prog_tests/btf_dedup_split.c:106:
+typedef int t1___2;\n\n", "c_dump");

CHECK: Concatenated strings should use spaces between elements
#111: FILE: tools/testing/selftests/bpf/prog_tests/btf_dedup_split.c:106:
+typedef int t1___2;\n\n", "c_dump");

WARNING: do not add new typedefs
#129: FILE: tools/testing/selftests/bpf/prog_tests/btf_dedup_split.c:129:
+typedef int t1;\n\

total: 0 errors, 5 warnings, 1 checks, 109 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 a5143a618e17 ("selftests/bpf: ensure typedef are deduplicated in split BTF") 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, 5 warnings, 1 checks, 109 lines checked