WARNING: Missing a blank line after declarations
#55: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:128:
+	struct bpf_map *map;
+	LIBBPF_OPTS(bpf_map_batch_opts, batch_opts);

WARNING: line length of 84 exceeds 80 columns
#82: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:155:
+	err = bpf_map_update_batch(map_fd, keys, values, &max_entries, &batch_opts);

WARNING: line length of 92 exceeds 80 columns
#91: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:164:
+		err = bpf_map_update_batch(map_fd, keys, values, &max_entries, &batch_opts);

WARNING: line length of 92 exceeds 80 columns
#100: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:173:
+		err = bpf_map_update_batch(map_fd, keys, values, &max_entries, &batch_opts);

WARNING: line length of 100 exceeds 80 columns
#106: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:179:
+		err = bpf_map_lookup_batch(map_fd, NULL, &batch, keys, values, &count, &batch_opts);

WARNING: line length of 95 exceeds 80 columns
#107: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:180:
+		if (!ASSERT_TRUE(!err || err == -ENOENT, "bpf_map_lookup_batch specified cpu"))

WARNING: line length of 83 exceeds 80 columns
#111: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:184:
+			if (!ASSERT_EQ(values[i], value, "value on specified cpu"))

WARNING: line length of 100 exceeds 80 columns
#117: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:190:
+		err = bpf_map_lookup_batch(map_fd, NULL, &batch, keys, values, &count, &batch_opts);

WARNING: line length of 90 exceeds 80 columns
#118: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:191:
+		if (!ASSERT_TRUE(!err || err == -ENOENT, "bpf_map_lookup_batch all cpus"))

WARNING: line length of 91 exceeds 80 columns
#123: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:196:
+				if (!ASSERT_EQ(values[i*nr_cpus + j], j != cpu ? 0 : value,

CHECK: spaces preferred around that '*' (ctx:VxV)
#123: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:196:
+				if (!ASSERT_EQ(values[i*nr_cpus + j], j != cpu ? 0 : value,
 				                       ^

WARNING: line length of 84 exceeds 80 columns
#150: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:223:
+	err = bpf_map_update_batch(map_fd, keys, values, &max_entries, &batch_opts);

WARNING: line length of 99 exceeds 80 columns
#159: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:232:
+			err = bpf_map__update_elem(map, keys + i, key_sz, values, value_sz, flags);

WARNING: line length of 82 exceeds 80 columns
#160: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:233:
+			if (!ASSERT_OK(err, "bpf_map__update_elem specified cpu"))

WARNING: line length of 99 exceeds 80 columns
#166: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:239:
+				err = bpf_map__lookup_elem(map, keys + i, key_sz, values, value_sz,

WARNING: line length of 90 exceeds 80 columns
#168: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:241:
+				if (!ASSERT_OK(err, "bpf_map__lookup_elem specified cpu"))

WARNING: line length of 94 exceeds 80 columns
#171: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:244:
+					       "bpf_map__lookup_elem value on specified cpu"))

WARNING: line length of 87 exceeds 80 columns
#179: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:252:
+		err = bpf_map__update_elem(map, keys, key_sz, values, value_sz, flags);

WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#203: 
new file mode 100644

total: 0 errors, 18 warnings, 1 checks, 189 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 5a6eee57f359 ("selftests/bpf: Add case to test BPF_F_CPU") 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, 18 warnings, 1 checks, 189 lines checked