WARNING: printk() should include KERN_<LEVEL> facility level
#162: FILE: tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:1246:
+	printk("bpf_testmod: oh no, recursing into test_1, recursion_misses %llu",

WARNING: line length of 82 exceeds 80 columns
#202: FILE: tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:1437:
+	ret = ret ?: register_bpf_struct_ops(&bpf_testmod_ops3, bpf_testmod_ops3);

WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#223: 
new file mode 100644

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

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

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

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

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

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

total: 0 errors, 3 warnings, 6 checks, 431 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 c421772634fd ("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, 3 warnings, 6 checks, 431 lines checked