WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#40: 
new file mode 100644

WARNING: Prefer noinline over __attribute__((noinline))
#55: FILE: tools/testing/selftests/bpf/progs/test_global_func18.c:11:
+__attribute__ ((noinline))

WARNING: Prefer noinline over __attribute__((noinline))
#63: FILE: tools/testing/selftests/bpf/progs/test_global_func18.c:19:
+__attribute__ ((noinline))

WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#66: FILE: tools/testing/selftests/bpf/progs/test_global_func18.c:22:
+	volatile char buf[MAX_STACK1] = {};

WARNING: Prefer noinline over __attribute__((noinline))
#73: FILE: tools/testing/selftests/bpf/progs/test_global_func18.c:29:
+__attribute__ ((noinline))

WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#76: FILE: tools/testing/selftests/bpf/progs/test_global_func18.c:32:
+	volatile char buf[MAX_STACK2] = {};

total: 0 errors, 6 warnings, 0 checks, 59 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 a947e4550593 ("selftests/bpf: Add a negative test for stack accounting in jit mode") 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, 6 warnings, 0 checks, 59 lines checked