WARNING: Missing a blank line after declarations
#41: FILE: tools/testing/selftests/bpf/prog_tests/stack_arg.c:13:
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,

CHECK: Alignment should match open parenthesis
#42: FILE: tools/testing/selftests/bpf/prog_tests/stack_arg.c:14:
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,

WARNING: Missing a blank line after declarations
#81: FILE: tools/testing/selftests/bpf/prog_tests/stack_arg.c:53:
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,

CHECK: Alignment should match open parenthesis
#82: FILE: tools/testing/selftests/bpf/prog_tests/stack_arg.c:54:
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,

WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#204: FILE: tools/testing/selftests/bpf/progs/stack_arg.c:27:
+const volatile bool has_stack_arg = true;

WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#266: FILE: tools/testing/selftests/bpf/progs/stack_arg.c:89:
+const volatile bool has_stack_arg = false;

WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#304: FILE: tools/testing/selftests/bpf/progs/stack_arg_kfunc.c:10:
+const volatile bool has_stack_arg = true;

WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#331: FILE: tools/testing/selftests/bpf/progs/stack_arg_kfunc.c:37:
+const volatile bool has_stack_arg = false;

total: 0 errors, 6 warnings, 2 checks, 360 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 3e05b2a35cae ("selftests/bpf: Add tests for BPF function stack arguments") 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, 6 warnings, 2 checks, 360 lines checked