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authorAlexei Starovoitov <ast@kernel.org>2021-12-01 10:10:25 -0800
committerAndrii Nakryiko <andrii@kernel.org>2021-12-02 11:18:34 -0800
commit8293eb995f349aed28006792cad4cb48091919dd (patch)
tree4dd7d85fab9a1a8cdf730380d590848523b2eec9 /kernel/bpf
parent74753e1462e77349525daf9eb60ea21ed92d3a97 (diff)
bpf: Rename btf_member accessors.
Rename btf_member_bit_offset() and btf_member_bitfield_size() to avoid conflicts with similarly named helpers in libbpf's btf.h. Rename the kernel helpers, since libbpf helpers are part of uapi. Suggested-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211201181040.23337-3-alexei.starovoitov@gmail.com
Diffstat (limited to 'kernel/bpf')
-rw-r--r--kernel/bpf/bpf_struct_ops.c6
-rw-r--r--kernel/bpf/btf.c18
2 files changed, 12 insertions, 12 deletions
diff --git a/kernel/bpf/bpf_struct_ops.c b/kernel/bpf/bpf_struct_ops.c
index 8ecfe4752769..21069dbe9138 100644
--- a/kernel/bpf/bpf_struct_ops.c
+++ b/kernel/bpf/bpf_struct_ops.c
@@ -165,7 +165,7 @@ void bpf_struct_ops_init(struct btf *btf, struct bpf_verifier_log *log)
break;
}
- if (btf_member_bitfield_size(t, member)) {
+ if (__btf_member_bitfield_size(t, member)) {
pr_warn("bit field member %s in struct %s is not supported\n",
mname, st_ops->name);
break;
@@ -296,7 +296,7 @@ static int check_zero_holes(const struct btf_type *t, void *data)
const struct btf_type *mtype;
for_each_member(i, t, member) {
- moff = btf_member_bit_offset(t, member) / 8;
+ moff = __btf_member_bit_offset(t, member) / 8;
if (moff > prev_mend &&
memchr_inv(data + prev_mend, 0, moff - prev_mend))
return -EINVAL;
@@ -387,7 +387,7 @@ static int bpf_struct_ops_map_update_elem(struct bpf_map *map, void *key,
struct bpf_prog *prog;
u32 moff;
- moff = btf_member_bit_offset(t, member) / 8;
+ moff = __btf_member_bit_offset(t, member) / 8;
ptype = btf_type_resolve_ptr(btf_vmlinux, member->type, NULL);
if (ptype == module_type) {
if (*(void **)(udata + moff))
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 6b9d23be1e99..f4119a99da7b 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -2969,7 +2969,7 @@ static s32 btf_struct_check_meta(struct btf_verifier_env *env,
return -EINVAL;
}
- offset = btf_member_bit_offset(t, member);
+ offset = __btf_member_bit_offset(t, member);
if (is_union && offset) {
btf_verifier_log_member(env, t, member,
"Invalid member bits_offset");
@@ -3094,7 +3094,7 @@ static int btf_find_struct_field(const struct btf *btf, const struct btf_type *t
if (off != -ENOENT)
/* only one such field is allowed */
return -E2BIG;
- off = btf_member_bit_offset(t, member);
+ off = __btf_member_bit_offset(t, member);
if (off % 8)
/* valid C code cannot generate such BTF */
return -EINVAL;
@@ -3184,8 +3184,8 @@ static void __btf_struct_show(const struct btf *btf, const struct btf_type *t,
btf_show_start_member(show, member);
- member_offset = btf_member_bit_offset(t, member);
- bitfield_size = btf_member_bitfield_size(t, member);
+ member_offset = __btf_member_bit_offset(t, member);
+ bitfield_size = __btf_member_bitfield_size(t, member);
bytes_offset = BITS_ROUNDDOWN_BYTES(member_offset);
bits8_offset = BITS_PER_BYTE_MASKED(member_offset);
if (bitfield_size) {
@@ -5060,7 +5060,7 @@ again:
if (array_elem->nelems != 0)
goto error;
- moff = btf_member_bit_offset(t, member) / 8;
+ moff = __btf_member_bit_offset(t, member) / 8;
if (off < moff)
goto error;
@@ -5083,14 +5083,14 @@ error:
for_each_member(i, t, member) {
/* offset of the field in bytes */
- moff = btf_member_bit_offset(t, member) / 8;
+ moff = __btf_member_bit_offset(t, member) / 8;
if (off + size <= moff)
/* won't find anything, field is already too far */
break;
- if (btf_member_bitfield_size(t, member)) {
- u32 end_bit = btf_member_bit_offset(t, member) +
- btf_member_bitfield_size(t, member);
+ if (__btf_member_bitfield_size(t, member)) {
+ u32 end_bit = __btf_member_bit_offset(t, member) +
+ __btf_member_bitfield_size(t, member);
/* off <= moff instead of off == moff because clang
* does not generate a BTF member for anonymous