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

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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(-)
>

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