diff options
Diffstat (limited to 'kernel/bpf/btf.c')
| -rw-r--r-- | kernel/bpf/btf.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c index f0287342204f..4138c51728dd 100644 --- a/kernel/bpf/btf.c +++ b/kernel/bpf/btf.c @@ -3177,6 +3177,7 @@ enum { struct btf_field_info { u32 type_id; u32 off; + enum bpf_kptr_type type; }; static int btf_find_struct(const struct btf *btf, const struct btf_type *t, @@ -3193,6 +3194,7 @@ static int btf_find_struct(const struct btf *btf, const struct btf_type *t, static int btf_find_kptr(const struct btf *btf, const struct btf_type *t, u32 off, int sz, struct btf_field_info *info) { + enum bpf_kptr_type type; u32 res_id; /* For PTR, sz is always == 8 */ @@ -3205,7 +3207,11 @@ static int btf_find_kptr(const struct btf *btf, const struct btf_type *t, /* Reject extra tags */ if (btf_type_is_type_tag(btf_type_by_id(btf, t->type))) return -EINVAL; - if (strcmp("kptr", __btf_name_by_offset(btf, t->name_off))) + if (!strcmp("kptr", __btf_name_by_offset(btf, t->name_off))) + type = BPF_KPTR_UNREF; + else if (!strcmp("kptr_ref", __btf_name_by_offset(btf, t->name_off))) + type = BPF_KPTR_REF; + else return -EINVAL; /* Get the base type */ @@ -3216,6 +3222,7 @@ static int btf_find_kptr(const struct btf *btf, const struct btf_type *t, info->type_id = res_id; info->off = off; + info->type = type; return BTF_FIELD_FOUND; } @@ -3420,6 +3427,7 @@ struct bpf_map_value_off *btf_parse_kptrs(const struct btf *btf, } tab->off[i].offset = info_arr[i].off; + tab->off[i].type = info_arr[i].type; tab->off[i].kptr.btf_id = id; tab->off[i].kptr.btf = kernel_btf; } |