WARNING: line length of 83 exceeds 80 columns
#54: FILE: tools/testing/selftests/bpf/bpf_experimental.h:224:
+extern struct path *bpf_kern_path(const char *pathname, unsigned int flags) __ksym;

CHECK: extern prototypes should be avoided in .h files
#54: FILE: tools/testing/selftests/bpf/bpf_experimental.h:224:
+extern struct path *bpf_kern_path(const char *pathname, unsigned int flags) __ksym;

CHECK: extern prototypes should be avoided in .h files
#55: FILE: tools/testing/selftests/bpf/bpf_experimental.h:225:
+extern void bpf_path_put(struct path *path) __ksym;

WARNING: line length of 86 exceeds 80 columns
#56: FILE: tools/testing/selftests/bpf/bpf_experimental.h:226:
+extern int bpf_path_d_path(const struct path *path, char *buf, size_t buf__sz) __ksym;

CHECK: extern prototypes should be avoided in .h files
#56: FILE: tools/testing/selftests/bpf/bpf_experimental.h:226:
+extern int bpf_path_d_path(const struct path *path, char *buf, size_t buf__sz) __ksym;

WARNING: line length of 89 exceeds 80 columns
#190: FILE: tools/testing/selftests/bpf/progs/test_kern_path.c:36:
+int BPF_PROG(test_kern_path_from_sb_mount, const char *dev_name, const struct path *path,

WARNING: line length of 87 exceeds 80 columns
#301: FILE: tools/testing/selftests/bpf/progs/verifier_kern_path_fail.c:27:
+__failure __msg("pointer type STRUCT path must point to scalar, or struct with scalar")

WARNING: line length of 87 exceeds 80 columns
#312: FILE: tools/testing/selftests/bpf/progs/verifier_kern_path_fail.c:38:
+__failure __msg("pointer type STRUCT path must point to scalar, or struct with scalar")

WARNING: line length of 87 exceeds 80 columns
#329: FILE: tools/testing/selftests/bpf/progs/verifier_kern_path_fail.c:55:
+__failure __msg("pointer type STRUCT path must point to scalar, or struct with scalar")

WARNING: line length of 82 exceeds 80 columns
#363: FILE: tools/testing/selftests/bpf/progs/verifier_kern_path_fail.c:89:
+	/* Calling bpf_kern_path() from a with non-const string isn't permitted */

CHECK: Please don't use multiple blank lines
#370: FILE: tools/testing/selftests/bpf/progs/verifier_kern_path_fail.c:96:
+
+

total: 0 errors, 7 warnings, 4 checks, 297 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 82c74d91ae1f ("selftests/bpf: Add tests for bpf_kern_path kfunc") 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, 7 warnings, 4 checks, 297 lines checked