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libbpf: Rename btf_{hash,equal}_int to btf_{hash,equal}_int_tag

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This patch renames functions btf_{hash,equal}_int() to
btf_{hash,equal}_int_tag() so they can be reused for
BTF_KIND_TAG support. There is no functionality change for
this patch.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210914223020.245829-1-yhs@fb.com
This commit is contained in:
Yonghong Song 2021-09-14 15:30:20 -07:00 committed by Alexei Starovoitov
parent b5ea834dde
commit 30025e8bd8
1 changed files with 8 additions and 8 deletions
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16
tools/lib/bpf/btf.c
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@ -3256,8 +3256,8 @@ static bool btf_equal_common(struct btf_type *t1, struct btf_type *t2)
t1->size == t2->size;
}
/* Calculate type signature hash of INT. */
static long btf_hash_int(struct btf_type *t)
/* Calculate type signature hash of INT or TAG. */
static long btf_hash_int_tag(struct btf_type *t)
{
__u32 info = *(__u32 *)(t + 1);
long h;
@ -3267,8 +3267,8 @@ static long btf_hash_int(struct btf_type *t)
return h;
}
/* Check structural equality of two INTs. */
static bool btf_equal_int(struct btf_type *t1, struct btf_type *t2)
/* Check structural equality of two INTs or TAGs. */
static bool btf_equal_int_tag(struct btf_type *t1, struct btf_type *t2)
{
__u32 info1, info2;
@ -3535,7 +3535,7 @@ static int btf_dedup_prep(struct btf_dedup *d)
h = btf_hash_common(t);
break;
case BTF_KIND_INT:
h = btf_hash_int(t);
h = btf_hash_int_tag(t);
break;
case BTF_KIND_ENUM:
h = btf_hash_enum(t);
@ -3593,11 +3593,11 @@ static int btf_dedup_prim_type(struct btf_dedup *d, __u32 type_id)
return 0;
case BTF_KIND_INT:
h = btf_hash_int(t);
h = btf_hash_int_tag(t);
for_each_dedup_cand(d, hash_entry, h) {
cand_id = (__u32)(long)hash_entry->value;
cand = btf_type_by_id(d->btf, cand_id);
if (btf_equal_int(t, cand)) {
if (btf_equal_int_tag(t, cand)) {
new_id = cand_id;
break;
}
@ -3881,7 +3881,7 @@ static int btf_dedup_is_equiv(struct btf_dedup *d, __u32 cand_id,
switch (cand_kind) {
case BTF_KIND_INT:
return btf_equal_int(cand_type, canon_type);
return btf_equal_int_tag(cand_type, canon_type);
case BTF_KIND_ENUM:
if (d->opts.dont_resolve_fwds)