ERROR: that open brace { should be on the previous line
#35: FILE: tools/testing/selftests/bpf/prog_tests/for_each.c:207:
+static void test_for_each_hash_modify(void)
+{

CHECK: Alignment should match open parenthesis
#42: FILE: tools/testing/selftests/bpf/prog_tests/for_each.c:214:
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,

WARNING: line length of 81 exceeds 80 columns
#55: FILE: tools/testing/selftests/bpf/prog_tests/for_each.c:227:
+		err = bpf_map__update_elem(skel->maps.hashmap, &key, sizeof(key),

WARNING: line length of 91 exceeds 80 columns
#61: FILE: tools/testing/selftests/bpf/prog_tests/for_each.c:233:
+	err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_pkt_access), &topts);

WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#80: 
new file mode 100644

total: 1 errors, 3 warnings, 1 checks, 83 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 a102e1070dc9 ("selftests/bpf: add test for softlock when modifying hashmap while iterating") 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.