WARNING: line length of 97 exceeds 80 columns
#108: FILE: tools/testing/selftests/bpf/prog_tests/file_reader.c:79:
+		bpf_program__set_autoload(prog, strcmp(bpf_program__name(prog), prog_name) == 0);

WARNING: line length of 90 exceeds 80 columns
#228: FILE: tools/testing/selftests/bpf/progs/file_reader.c:80:
+	bpf_task_work_schedule_signal(task, &work->tw, &arrmap, task_work_callback, NULL);

WARNING: line length of 91 exceeds 80 columns
#232: FILE: tools/testing/selftests/bpf/progs/file_reader.c:84:
+/* Called in a sleepable context, read 256K bytes, cross check with user space read data */

WARNING: line length of 87 exceeds 80 columns
#248: FILE: tools/testing/selftests/bpf/progs/file_reader.c:100:
+static int verify_dynptr_read(struct bpf_dynptr *ptr, u32 off, char *user_buf, u32 len)

WARNING: line length of 91 exceeds 80 columns
#255: FILE: tools/testing/selftests/bpf/progs/file_reader.c:107:
+	/* Verify file contents read from BPF is the same as the one read from userspace */

WARNING: line length of 97 exceeds 80 columns
#275: FILE: tools/testing/selftests/bpf/progs/file_reader.c:127:
+	loc_err = loc_err ?: verify_dynptr_read(&dynptr, off, user_buf + off, user_buf_sz - off);

WARNING: line length of 97 exceeds 80 columns
#277: FILE: tools/testing/selftests/bpf/progs/file_reader.c:129:
+	loc_err = loc_err ?: verify_dynptr_read(&dynptr, off, user_buf + off, user_buf_sz - off);

WARNING: line length of 83 exceeds 80 columns
#280: FILE: tools/testing/selftests/bpf/progs/file_reader.c:132:
+	loc_err = loc_err ?: verify_dynptr_read(&dynptr, off, user_buf + off, 100);

WARNING: line length of 84 exceeds 80 columns
#286: FILE: tools/testing/selftests/bpf/progs/file_reader.c:138:
+	loc_err = loc_err ?: verify_dynptr_read(&dynptr, 0, user_buf + off, 2) == 0;

WARNING: line length of 84 exceeds 80 columns
#288: FILE: tools/testing/selftests/bpf/progs/file_reader.c:140:
+	loc_err = loc_err ?: verify_dynptr_read(&dynptr, 1, user_buf + off, 1) == 0;

total: 0 errors, 10 warnings, 0 checks, 310 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 fab8a91fd341 ("selftests/bpf: add file dynptr tests") 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, 10 warnings, 0 checks, 310 lines checked