==========
checkpatch - FAILED

ERROR: code indent should use tabs where possible
#27: FILE: tools/testing/selftests/bpf/progs/iters.c:1493:
+        struct bpf_iter_num it;$

WARNING: please, no spaces at the start of a line
#27: FILE: tools/testing/selftests/bpf/progs/iters.c:1493:
+        struct bpf_iter_num it;$

ERROR: code indent should use tabs where possible
#28: FILE: tools/testing/selftests/bpf/progs/iters.c:1494:
+        int *v;$

WARNING: please, no spaces at the start of a line
#28: FILE: tools/testing/selftests/bpf/progs/iters.c:1494:
+        int *v;$

ERROR: code indent should use tabs where possible
#30: FILE: tools/testing/selftests/bpf/progs/iters.c:1496:
+        int *map_val = NULL;$

WARNING: please, no spaces at the start of a line
#30: FILE: tools/testing/selftests/bpf/progs/iters.c:1496:
+        int *map_val = NULL;$

ERROR: code indent should use tabs where possible
#31: FILE: tools/testing/selftests/bpf/progs/iters.c:1497:
+        int key = 0;$

WARNING: please, no spaces at the start of a line
#31: FILE: tools/testing/selftests/bpf/progs/iters.c:1497:
+        int key = 0;$

ERROR: code indent should use tabs where possible
#33: FILE: tools/testing/selftests/bpf/progs/iters.c:1499:
+        map_val = bpf_map_lookup_elem(&arr_map, &key);$

WARNING: please, no spaces at the start of a line
#33: FILE: tools/testing/selftests/bpf/progs/iters.c:1499:
+        map_val = bpf_map_lookup_elem(&arr_map, &key);$

ERROR: code indent should use tabs where possible
#34: FILE: tools/testing/selftests/bpf/progs/iters.c:1500:
+        if (!map_val)$

WARNING: please, no spaces at the start of a line
#34: FILE: tools/testing/selftests/bpf/progs/iters.c:1500:
+        if (!map_val)$

ERROR: code indent should use tabs where possible
#35: FILE: tools/testing/selftests/bpf/progs/iters.c:1501:
+                return 0;$

WARNING: please, no spaces at the start of a line
#35: FILE: tools/testing/selftests/bpf/progs/iters.c:1501:
+                return 0;$

ERROR: code indent should use tabs where possible
#37: FILE: tools/testing/selftests/bpf/progs/iters.c:1503:
+        bpf_iter_num_new(&it, 0, 3);$

WARNING: please, no spaces at the start of a line
#37: FILE: tools/testing/selftests/bpf/progs/iters.c:1503:
+        bpf_iter_num_new(&it, 0, 3);$

ERROR: code indent should use tabs where possible
#38: FILE: tools/testing/selftests/bpf/progs/iters.c:1504:
+        while ((v = bpf_iter_num_next((struct bpf_iter_num*)map_val))) {}$

WARNING: please, no spaces at the start of a line
#38: FILE: tools/testing/selftests/bpf/progs/iters.c:1504:
+        while ((v = bpf_iter_num_next((struct bpf_iter_num*)map_val))) {}$

ERROR: "(foo*)" should be "(foo *)"
#38: FILE: tools/testing/selftests/bpf/progs/iters.c:1504:
+        while ((v = bpf_iter_num_next((struct bpf_iter_num*)map_val))) {}

ERROR: trailing statements should be on next line
#38: FILE: tools/testing/selftests/bpf/progs/iters.c:1504:
+        while ((v = bpf_iter_num_next((struct bpf_iter_num*)map_val))) {}

WARNING: braces {} are not necessary for single statement blocks
#38: FILE: tools/testing/selftests/bpf/progs/iters.c:1504:
+        while ((v = bpf_iter_num_next((struct bpf_iter_num*)map_val))) {}

ERROR: code indent should use tabs where possible
#39: FILE: tools/testing/selftests/bpf/progs/iters.c:1505:
+        bpf_iter_num_destroy(&it);$

WARNING: please, no spaces at the start of a line
#39: FILE: tools/testing/selftests/bpf/progs/iters.c:1505:
+        bpf_iter_num_destroy(&it);$

ERROR: code indent should use tabs where possible
#41: FILE: tools/testing/selftests/bpf/progs/iters.c:1507:
+        return 0;$

WARNING: please, no spaces at the start of a line
#41: FILE: tools/testing/selftests/bpf/progs/iters.c:1507:
+        return 0;$

total: 13 errors, 12 warnings, 0 checks, 25 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.

NOTE: Whitespace errors detected.
      You may wish to use scripts/cleanpatch or scripts/cleanfile

Commit f52f39025ca9 ("selftests/bpf: Add a test for the type checking of iter args") 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.