linux-kernel - Re: [PATCH bpf-next v2 2/7] bpf: JIT helpers for fmod

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: <CAEf4Bzah9CpWJ1vLuy+V1K26Ka1ovKvvAnbRuYBJ1GF-xcQbJQ@mail.gmail.com>
Date:   Tue, 3 Mar 2020 20:52:53 -0800
From:   Andrii Nakryiko <andrii.nakryiko@...il.com>
To:     KP Singh <kpsingh@...omium.org>
Cc:     linux-security-module@...r.kernel.org,
        open list <linux-kernel@...r.kernel.org>,
        bpf <bpf@...r.kernel.org>, Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Paul Turner <pjt@...gle.com>, Jann Horn <jannh@...gle.com>,
        Florent Revest <revest@...omium.org>,
        Brendan Jackman <jackmanb@...omium.org>
Subject: Re: [PATCH bpf-next v2 2/7] bpf: JIT helpers for fmod_ret progs

On Tue, Mar 3, 2020 at 5:56 PM KP Singh <kpsingh@...omium.org> wrote:
>
> From: KP Singh <kpsingh@...gle.com>
>
> * Split the invoke_bpf program to prepare for special handling of
>   fmod_ret programs introduced in a subsequent patch.
> * Move the definition of emit_cond_near_jump and emit_nops as they are
>   needed for fmod_ret.
> * Refactor branch target alignment into its own function
>   align16_branch_target.
>
> Signed-off-by: KP Singh <kpsingh@...gle.com>
> ---

I trust invoke_bpf_prog logic didn't change, code was just moved around, right?

Acked-by: Andrii Nakryiko <andriin@...com>


>  arch/x86/net/bpf_jit_comp.c | 148 +++++++++++++++++++++---------------
>  1 file changed, 85 insertions(+), 63 deletions(-)
>

[...]