WARNING: line length of 104 exceeds 80 columns
#123: FILE: tools/testing/selftests/bpf/test_kmods/bpf_testmod.c:1143:
+__bpf_kfunc int bpf_kfunc_multi_st_ops_test_1_assoc(struct st_ops_args *args, struct bpf_prog_aux *aux);

WARNING: externs should be avoided in .c files
#123: FILE: tools/testing/selftests/bpf/test_kmods/bpf_testmod.c:1143:
+__bpf_kfunc int bpf_kfunc_multi_st_ops_test_1_assoc(struct st_ops_args *args, struct bpf_prog_aux *aux);

WARNING: line length of 91 exceeds 80 columns
#141: FILE: tools/testing/selftests/bpf/test_kmods/bpf_testmod.c:1672:
+int bpf_kfunc_multi_st_ops_test_1_assoc(struct st_ops_args *args, struct bpf_prog_aux *aux)

WARNING: line length of 87 exceeds 80 columns
#148: FILE: tools/testing/selftests/bpf/test_kmods/bpf_testmod.c:1677:
+	st_ops = (struct bpf_testmod_multi_st_ops *)bpf_prog_get_assoc_struct_ops(aux);

WARNING: line length of 89 exceeds 80 columns
#163: FILE: tools/testing/selftests/bpf/test_kmods/bpf_testmod_kfunc.h:165:
+extern int bpf_kfunc_multi_st_ops_test_1(struct st_ops_args *args, u32 id) __weak __ksym;

CHECK: extern prototypes should be avoided in .h files
#163: FILE: tools/testing/selftests/bpf/test_kmods/bpf_testmod_kfunc.h:165:
+extern int bpf_kfunc_multi_st_ops_test_1(struct st_ops_args *args, u32 id) __weak __ksym;

WARNING: line length of 87 exceeds 80 columns
#164: FILE: tools/testing/selftests/bpf/test_kmods/bpf_testmod_kfunc.h:166:
+extern int bpf_kfunc_multi_st_ops_test_1_assoc(struct st_ops_args *args) __weak __ksym;

CHECK: extern prototypes should be avoided in .h files
#164: FILE: tools/testing/selftests/bpf/test_kmods/bpf_testmod_kfunc.h:166:
+extern int bpf_kfunc_multi_st_ops_test_1_assoc(struct st_ops_args *args) __weak __ksym;

total: 0 errors, 6 warnings, 2 checks, 114 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 bdc932aa5f12 ("selftests/bpf: Migrate struct_ops_assoc test to KF_IMPLICIT_ARGS") 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, 6 warnings, 2 checks, 114 lines checked