==========
checkpatch - FAILED

WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#34: 
new file mode 100644

WARNING: Missing or malformed SPDX-License-Identifier tag in line 1
#39: FILE: tools/testing/selftests/bpf/prog_tests/bpf_qdisc.c:1:
+#include <linux/pkt_sched.h>

WARNING: ENOTSUPP is not a SUSV4 error code, prefer EOPNOTSUPP
#46: FILE: tools/testing/selftests/bpf/prog_tests/bpf_qdisc.c:8:
+#ifndef ENOTSUPP

WARNING: ENOTSUPP is not a SUSV4 error code, prefer EOPNOTSUPP
#47: FILE: tools/testing/selftests/bpf/prog_tests/bpf_qdisc.c:9:
+#define ENOTSUPP 524

WARNING: void function return statements are not generally useful
#172: FILE: tools/testing/selftests/bpf/prog_tests/bpf_qdisc.c:134:
+	return;
+}

WARNING: Missing or malformed SPDX-License-Identifier tag in line 1
#206: FILE: tools/testing/selftests/bpf/progs/bpf_qdisc_common.h:1:
+#ifndef _BPF_QDISC_COMMON_H

WARNING: line length of 83 exceeds 80 columns
#218: FILE: tools/testing/selftests/bpf/progs/bpf_qdisc_common.h:13:
+void bpf_qdisc_skb_drop(struct sk_buff *p, struct bpf_sk_buff_ptr *to_free) __ksym;

WARNING: line length of 85 exceeds 80 columns
#219: FILE: tools/testing/selftests/bpf/progs/bpf_qdisc_common.h:14:
+void bpf_qdisc_watchdog_schedule(struct Qdisc *sch, u64 expire, u64 delta_ns) __ksym;

WARNING: line length of 82 exceeds 80 columns
#220: FILE: tools/testing/selftests/bpf/progs/bpf_qdisc_common.h:15:
+void bpf_qdisc_bstats_update(struct Qdisc *sch, const struct sk_buff *skb) __ksym;

WARNING: Missing or malformed SPDX-License-Identifier tag in line 1
#239: FILE: tools/testing/selftests/bpf/progs/bpf_qdisc_fifo.c:1:
+#include <vmlinux.h>

ERROR: Macros with complex values should be enclosed in parentheses
#250: FILE: tools/testing/selftests/bpf/progs/bpf_qdisc_fifo.c:12:
+#define private(name) SEC(".data." #name) __hidden __attribute__((aligned(8)))

WARNING: Prefer __aligned(8) over __attribute__((aligned(8)))
#250: FILE: tools/testing/selftests/bpf/progs/bpf_qdisc_fifo.c:12:
+#define private(name) SEC(".data." #name) __hidden __attribute__((aligned(8)))

total: 1 errors, 11 warnings, 0 checks, 312 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 7caba8d393e2 ("selftests: Add a basic fifo qdisc test") 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.