WARNING: Missing a blank line after declarations
#56: FILE: tools/testing/selftests/bpf/prog_tests/tailcalls.c:1744:
+	struct bpf_map *map;
+	LIBBPF_OPTS(bpf_kprobe_opts, kprobe_opts);

WARNING: line length of 93 exceeds 80 columns
#84: FILE: tools/testing/selftests/bpf/prog_tests/tailcalls.c:1772:
+	skel->links.dummy_kprobe = bpf_program__attach_kprobe_opts(dummy, "bpf_fentry_test1",

WARNING: line length of 81 exceeds 80 columns
#85: FILE: tools/testing/selftests/bpf/prog_tests/tailcalls.c:1773:
+								   &kprobe_opts);

WARNING: line length of 88 exceeds 80 columns
#86: FILE: tools/testing/selftests/bpf/prog_tests/tailcalls.c:1774:
+	if (!ASSERT_OK_PTR(skel->links.dummy_kprobe, "bpf_program__attach_kprobe_opts"))

WARNING: line length of 87 exceeds 80 columns
#90: FILE: tools/testing/selftests/bpf/prog_tests/tailcalls.c:1778:
+	if (!ASSERT_OK_PTR(skel->links.fsession_tailcall, "bpf_program__attach_trace"))

WARNING: line length of 93 exceeds 80 columns
#104: FILE: tools/testing/selftests/bpf/prog_tests/tailcalls.c:1792:
+	link = bpf_program__attach_uprobe_opts(kprobe, 0, "/proc/self/exe", 0, &uprobe_opts);

WARNING: line length of 96 exceeds 80 columns
#113: FILE: tools/testing/selftests/bpf/prog_tests/tailcalls.c:1801:
+	ASSERT_EQ(trigger_uprobe_fn(1), 0, "trigger_uprobe_fn retval"); /* modified by uprobe */

WARNING: Missing a blank line after declarations
#138: FILE: tools/testing/selftests/bpf/prog_tests/tailcalls.c:1826:
+	__u64 func_ip;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);

WARNING: Missing a blank line after declarations
#229: FILE: tools/testing/selftests/bpf/prog_tests/tailcalls.c:1917:
+	struct bpf_map *map;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);

CHECK: multiple assignments should be avoided
#409: FILE: tools/testing/selftests/bpf/progs/tailcall_map_compatible.c:37:
+	data = regs->di = 0;

total: 0 errors, 9 warnings, 1 checks, 438 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 8f3b11e55a09 ("selftests/bpf: Add tests to verify prog_array map compatibility") 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, 9 warnings, 1 checks, 438 lines checked