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authorYonghong Song <yhs@fb.com>2023-05-30 22:50:34 +0200
committerMartin KaFai Lau <martin.lau@kernel.org>2023-05-30 23:34:46 +0200
commite38096d95f4d7e8cc15280b4a3515eee31925561 (patch)
tree43553535ed63d4ac2e390ce1737da99bb57fbd34
parentbpf: Silence a warning in btf_type_id_size() (diff)
downloadlinux-e38096d95f4d7e8cc15280b4a3515eee31925561.tar.xz
linux-e38096d95f4d7e8cc15280b4a3515eee31925561.zip
selftests/bpf: Add a test where map key_type_id with decl_tag type
Add two selftests where map creation key/value type_id's are decl_tags. Without previous patch, kernel warnings will appear similar to the one in the previous patch. With the previous patch, both kernel warnings are silenced. Signed-off-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/r/20230530205034.266643-1-yhs@fb.com Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
-rw-r--r--tools/testing/selftests/bpf/prog_tests/btf.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/btf.c b/tools/testing/selftests/bpf/prog_tests/btf.c
index 210d643fda6c..4e0cdb593318 100644
--- a/tools/testing/selftests/bpf/prog_tests/btf.c
+++ b/tools/testing/selftests/bpf/prog_tests/btf.c
@@ -3991,6 +3991,46 @@ static struct btf_raw_test raw_tests[] = {
.err_str = "Invalid arg#1",
},
{
+ .descr = "decl_tag test #18, decl_tag as the map key type",
+ .raw_types = {
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_STRUCT_ENC(0, 2, 8), /* [2] */
+ BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+ BTF_MEMBER_ENC(NAME_TBD, 1, 32),
+ BTF_DECL_TAG_ENC(NAME_TBD, 2, -1), /* [3] */
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0m1\0m2\0tag"),
+ .map_type = BPF_MAP_TYPE_HASH,
+ .map_name = "tag_type_check_btf",
+ .key_size = 8,
+ .value_size = 4,
+ .key_type_id = 3,
+ .value_type_id = 1,
+ .max_entries = 1,
+ .map_create_err = true,
+},
+{
+ .descr = "decl_tag test #19, decl_tag as the map value type",
+ .raw_types = {
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+ BTF_STRUCT_ENC(0, 2, 8), /* [2] */
+ BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+ BTF_MEMBER_ENC(NAME_TBD, 1, 32),
+ BTF_DECL_TAG_ENC(NAME_TBD, 2, -1), /* [3] */
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0m1\0m2\0tag"),
+ .map_type = BPF_MAP_TYPE_HASH,
+ .map_name = "tag_type_check_btf",
+ .key_size = 4,
+ .value_size = 8,
+ .key_type_id = 1,
+ .value_type_id = 3,
+ .max_entries = 1,
+ .map_create_err = true,
+},
+{
.descr = "type_tag test #1",
.raw_types = {
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */