Re: [PATCH bpf-next v2] bpf: Fix unaligned interpreter panic on JIT fallback path

[Leon Hwang <leon.hwang@linux.dev>]

On 15/6/26 09:23, Tiezhu Yang wrote:
> On 2026/6/12 下午8:37, Xu Kuohai wrote:
>> On 6/11/2026 6:12 PM, Tiezhu Yang wrote:
>>> When an architecture implements bpf_jit_inlines_helper_call(), such
>>> as LoongArch, ARM64, and RISC-V, the BPF verifier skips rewriting
>>> the helper call offset (insn->imm) during the bpf_do_misc_fixups()
>>> phase if the helper is expected to be inlined by the JIT compiler.
>>> As a result, insn->imm remains as the raw helper enum ID.
>
> ...
>
>>> +static void bpf_fixup_fallback_inline_helpers(struct
>>> bpf_verifier_env *env, struct bpf_prog *fp)
>>
>> The function name is a bit long for a static function
>
> If there are no objections, I will shorten the static function
> name to bpf_fixup_inline_helpers() in v4.
>

I think bpf_fixup_inline_helpers() is not accurate, since it is to fix
those non-inline helpers here. bpf_fixup_non_inline_helpers() is a
candidate. However, a shorter name is preferred.

Please provide changelog btw. For a single patch, you can provide
changelog here.

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
---
Changelog:
v3 -> v4: xxx
---
 kernel/bpf/core.c | 28 ++++++++++++++++++++++++++++

Thanks,
Leon