linux-kernel - Re: [PATCH bpf-next 2/3] bpf, riscv: add fsession support for trampolines

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAJ+HfNizNFc0j_eUNFR3_kO8diQzbjce8oLzBEOK2sWnG=rGhg@mail.gmail.com>
Date: Fri, 6 Feb 2026 12:22:35 +0100
From: Björn Töpel <bjorn@...nel.org>
To: Menglong Dong <menglong8.dong@...il.com>
Cc: ast@...nel.org, daniel@...earbox.net, andrii@...nel.org, 
	martin.lau@...ux.dev, eddyz87@...il.com, song@...nel.org, 
	yonghong.song@...ux.dev, john.fastabend@...il.com, kpsingh@...nel.org, 
	sdf@...ichev.me, haoluo@...gle.com, jolsa@...nel.org, pulehui@...wei.com, 
	puranjay@...nel.org, pjw@...nel.org, palmer@...belt.com, 
	aou@...s.berkeley.edu, alex@...ti.fr, jiang.biao@...ux.dev, 
	bpf@...r.kernel.org, linux-riscv@...ts.infradead.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH bpf-next 2/3] bpf, riscv: add fsession support for trampolines

On Tue, 3 Feb 2026 at 06:53, Menglong Dong <menglong8.dong@...il.com> wrote:

> diff --git a/arch/riscv/net/bpf_jit_comp64.c b/arch/riscv/net/bpf_jit_comp64.c
> index e4f45e2e7e2f..f10418ff6a9b 100644
> --- a/arch/riscv/net/bpf_jit_comp64.c
> +++ b/arch/riscv/net/bpf_jit_comp64.c

> @@ -1042,10 +1067,14 @@ static int __arch_prepare_bpf_trampoline(struct bpf_tramp_image *im,
>          *                  [ ...               ]
>          * FP - args_off    [ arg1              ]
>          *
> -        * FP - nregs_off   [ regs count        ]
> +        * FP - func_meta_off [ regs count, etc ]  always

Nit: Please remove the "always" comment. It's not helpful.