WARNING: line length of 87 exceeds 80 columns
#48: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:119:
+static void test_percpu_map_op_cpu_flag(struct bpf_map *map, void *keys, size_t key_sz,

WARNING: Missing a blank line after declarations
#56: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:127:
+	u32 count;
+	LIBBPF_OPTS(bpf_map_batch_opts, batch_opts);

WARNING: line length of 90 exceeds 80 columns
#91: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:162:
+			err = bpf_map__update_elem(map, keys + i * key_sz, key_sz, values,

WARNING: line length of 90 exceeds 80 columns
#101: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:172:
+			err = bpf_map__update_elem(map, keys + i * key_sz, key_sz, values,

WARNING: line length of 82 exceeds 80 columns
#103: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:174:
+			if (!ASSERT_OK(err, "bpf_map__update_elem specified cpu"))

WARNING: line length of 98 exceeds 80 columns
#109: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:180:
+				err = bpf_map__lookup_elem(map, keys + i * key_sz, key_sz, values,

WARNING: line length of 90 exceeds 80 columns
#111: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:182:
+				if (!ASSERT_OK(err, "bpf_map__lookup_elem specified cpu"))

WARNING: line length of 94 exceeds 80 columns
#114: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:185:
+					       "bpf_map__lookup_elem value on specified cpu"))

WARNING: line length of 84 exceeds 80 columns
#124: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:195:
+	err = bpf_map_update_batch(map_fd, keys, values, &max_entries, &batch_opts);

WARNING: line length of 92 exceeds 80 columns
#133: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:204:
+		err = bpf_map_update_batch(map_fd, keys, values, &max_entries, &batch_opts);

WARNING: line length of 92 exceeds 80 columns
#142: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:213:
+		err = bpf_map_update_batch(map_fd, keys, values, &max_entries, &batch_opts);

WARNING: line length of 100 exceeds 80 columns
#148: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:219:
+		err = bpf_map_lookup_batch(map_fd, NULL, &batch, keys, values, &count, &batch_opts);

WARNING: line length of 95 exceeds 80 columns
#149: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:220:
+		if (!ASSERT_TRUE(!err || err == -ENOENT, "bpf_map_lookup_batch specified cpu"))

WARNING: line length of 83 exceeds 80 columns
#153: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:224:
+			if (!ASSERT_EQ(values[i], value, "value on specified cpu"))

WARNING: line length of 100 exceeds 80 columns
#159: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:230:
+		err = bpf_map_lookup_batch(map_fd, NULL, &batch, keys, values, &count, &batch_opts);

WARNING: line length of 90 exceeds 80 columns
#160: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:231:
+		if (!ASSERT_TRUE(!err || err == -ENOENT, "bpf_map_lookup_batch all cpus"))

WARNING: line length of 91 exceeds 80 columns
#165: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:236:
+				if (!ASSERT_EQ(values[i*nr_cpus + j], j != cpu ? 0 : value,

CHECK: spaces preferred around that '*' (ctx:VxV)
#165: FILE: tools/testing/selftests/bpf/prog_tests/percpu_alloc.c:236:
+				if (!ASSERT_EQ(values[i*nr_cpus + j], j != cpu ? 0 : value,
 				                       ^

total: 0 errors, 17 warnings, 1 checks, 275 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 9dc1d8b29982 ("selftests/bpf: Add cases to test BPF_F_CPU and BPF_F_ALL_CPUS flags") 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, 17 warnings, 1 checks, 275 lines checked