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| author | Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2026-08-08 02:39:21 +0200 |
|---|---|---|
| committer | Eduard Zingerman <eddyz87@gmail.com> | 2026-08-08 03:03:25 -0700 |
| commit | 04962afb3cd6a3cbf1a3679c0c95049833db36c1 (patch) | |
| tree | 61d6aea714ec23818114aa20b57dddb5ec2480ac /include | |
| parent | 8b365b3c68b474a1053ec0755dacdc751578afb0 (diff) | |
| download | linux-stable-04962afb3cd6a3cbf1a3679c0c95049833db36c1.tar.gz linux-stable-04962afb3cd6a3cbf1a3679c0c95049833db36c1.zip | |
bpf: Rename 'early' BTF checking as a preparation phase
BTF processing is split around subprogram discovery. The first phase gets
program BTF and imports func_info because a BTF-tagged exception callback
may not be referenced by any instruction. Subprogram discovery needs this
metadata to find it.
The later phase validates func_info and line_info against the complete
subprogram table and applies CO-RE relocations. This split breaks a real
dependency cycle rather than merely running the same checks early.
Rename bpf_check_btf_info_early() and check_btf_func_early() to preparation
names that reflect this role. Add short call-site comments to make the two
phases and their responsibilities clear.
No functional change is intended.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Reviewed-by: Amery Hung <ameryhung@gmail.com>
Link: https://patch.msgid.link/20260808003938.3486067-2-memxor@gmail.com
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/bpf_verifier.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h index 2c74d676ede9..1ccf82d7ff8d 100644 --- a/include/linux/bpf_verifier.h +++ b/include/linux/bpf_verifier.h @@ -1172,8 +1172,8 @@ static inline void bpf_trampoline_unpack_key(u64 key, u32 *obj_id, u32 *btf_id) *btf_id = key & 0x7FFFFFFF; } -int bpf_check_btf_info_early(struct bpf_verifier_env *env, - const union bpf_attr *attr, bpfptr_t uattr); +int bpf_prepare_btf_info(struct bpf_verifier_env *env, + const union bpf_attr *attr, bpfptr_t uattr); int bpf_check_btf_info(struct bpf_verifier_env *env, const union bpf_attr *attr, bpfptr_t uattr); |