Re: [PATCH v1 2/2] LoongArch: BPF: Use beqz and bnez instructions for trampoline

[Tiezhu Yang]

On 11/6/26 10:45 PM, Huacai Chen wrote:
> On Tue, Nov 3, 2026 at 10:27 AM Tiezhu Yang <yangtiezhu@xxxxxxxxxxx> wrote:
> > On 2026/11/2 下午3:53, bot+bpf-ci@xxxxxxxxxx wrote:
> > > > LoongArch: BPF: Use beqz and bnez instructions for trampoline
> > >
> > > TL;DR: Commit message only: the claimed branch-overflow risk looks impossible,
> > > since trampolines fit in one page and the old code behaved identically, so the
> > > Fixes: and Cc: stable tags may not be justified.
> >
> > ...
> >
> > > Could the changelog drop the overflow-risk wording, or describe the change
> > > as a cleanup, and could the Fixes: and Cc: stable tags be reconsidered given
> > > that stable-kernel-rules requires a fix for a real bug?
> >
> > Will update the commit message and remove the 'Fixes' and 'Cc: stable'
> > tags. If no more comments, I will send out v2 next week.
> Fixes can be removed but I suggest keep Cc: stable, the overflow risk
> actually exists.

Since the branch overflow is technically impossible under the current
1-page limit of BPF trampoline, I plan to drop the Fixes and Cc: stable
tags in v2 to align with standard upstream cleanup rules.

If you still prefer to backport this for architecture-level defense,
please feel free to append the Cc: stable tag when applying the patch.

Thanks,
Tiezhu