WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#20: 
new file mode 100644

CHECK: Alignment should match open parenthesis
#36: FILE: tools/testing/selftests/bpf/prog_tests/slab_iter.c:12:
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		.flags = BPF_F_TEST_RUN_ON_CPU,

WARNING: externs should be avoided in .c files
#142: FILE: tools/testing/selftests/bpf/progs/slab_iter.c:19:
+extern struct kmem_cache *bpf_get_slab_cache(__u64 addr) __ksym;

CHECK: Comparison to NULL could be written "!s"
#177: FILE: tools/testing/selftests/bpf/progs/slab_iter.c:54:
+	if (s == NULL)

total: 0 errors, 2 warnings, 2 checks, 148 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 65dcdaa359ec ("selftests/bpf: Add a test for slab_iter") 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, 2 warnings, 2 checks, 148 lines checked