WARNING: line length of 82 exceeds 80 columns
#149: FILE: tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:1416:
+	ret = ret ?: register_bpf_struct_ops(&bpf_testmod_ops3, bpf_testmod_ops3);

WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#171: 
new file mode 100644

CHECK: No space is necessary after a cast
#277: FILE: tools/testing/selftests/bpf/progs/struct_ops_private_stack.c:16:
+void bpf_testmod_ops3_call_test_2(void) __ksym;

WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#289: FILE: tools/testing/selftests/bpf/progs/struct_ops_private_stack.c:28:
+	volatile int b[100] = {};

CHECK: Please don't use multiple blank lines
#295: FILE: tools/testing/selftests/bpf/progs/struct_ops_private_stack.c:34:
+
+

WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#300: FILE: tools/testing/selftests/bpf/progs/struct_ops_private_stack.c:39:
+	volatile int a[100] = {};

WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#312: FILE: tools/testing/selftests/bpf/progs/struct_ops_private_stack.c:51:
+	volatile int a[100] = {};

CHECK: No space is necessary after a cast
#345: FILE: tools/testing/selftests/bpf/progs/struct_ops_private_stack_recur.c:16:
+void bpf_testmod_ops3_call_test_1(void) __ksym;

WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#357: FILE: tools/testing/selftests/bpf/progs/struct_ops_private_stack_recur.c:28:
+	volatile int b[100] = {};

CHECK: Please don't use multiple blank lines
#363: FILE: tools/testing/selftests/bpf/progs/struct_ops_private_stack_recur.c:34:
+
+

WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#368: FILE: tools/testing/selftests/bpf/progs/struct_ops_private_stack_recur.c:39:
+	volatile int a[100] = {};

total: 0 errors, 7 warnings, 4 checks, 323 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 5f5b6450b411 ("selftests/bpf: Add struct_ops prog private stack tests") 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, 7 warnings, 4 checks, 323 lines checked