WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#23: 
new file mode 100644

WARNING: void function return statements are not generally useful
#46: FILE: tools/testing/selftests/bpf/prog_tests/stream.c:19:
+	return;
+}

WARNING: line length of 94 exceeds 80 columns
#101: FILE: tools/testing/selftests/bpf/prog_tests/stream.c:74:
+		prog = (struct bpf_program **)(((char *)skel) + stream_error_arr[i].prog_off);

WARNING: line length of 89 exceeds 80 columns
#110: FILE: tools/testing/selftests/bpf/prog_tests/stream.c:83:
+			ret = bpf_prog_stream_read(prog_fd, 2, buf, sizeof(buf), &ropts);

WARNING: line length of 97 exceeds 80 columns
#116: FILE: tools/testing/selftests/bpf/prog_tests/stream.c:89:
+		ret = bpf_prog_stream_read(prog_fd, BPF_STREAM_STDERR, buf, sizeof(buf), &ropts);

WARNING: line length of 100 exceeds 80 columns
#146: FILE: tools/testing/selftests/bpf/prog_tests/stream.c:119:
+	ASSERT_LT(bpf_prog_stream_read(0, BPF_STREAM_STDOUT, buf, sizeof(buf), &ropts), 0, "error");

WARNING: line length of 90 exceeds 80 columns
#150: FILE: tools/testing/selftests/bpf/prog_tests/stream.c:123:
+	ASSERT_LT(bpf_prog_stream_read(prog_fd, 0, buf, sizeof(buf), &ropts), 0, "error");

WARNING: line length of 105 exceeds 80 columns
#154: FILE: tools/testing/selftests/bpf/prog_tests/stream.c:127:
+	ASSERT_LT(bpf_prog_stream_read(prog_fd, BPF_STREAM_STDOUT, NULL, sizeof(buf), NULL), 0, "error");

WARNING: line length of 84 exceeds 80 columns
#206: FILE: tools/testing/selftests/bpf/progs/stream.c:32:
+		if (bpf_stream_printk(BPF_STDOUT, _STR) == -ENOSPC && size == 99954)

total: 0 errors, 9 warnings, 0 checks, 253 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 eaeec0961371 ("selftests/bpf: Add tests for prog streams") 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, 9 warnings, 0 checks, 253 lines checked