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Date:	Wed, 06 May 2015 08:15:18 -0700
From:	Alexei Starovoitov <>
To:	Daniel Borkmann <>,
Subject: Re: [PATCH net-next 2/4] seccomp: simplify seccomp_prepare_filter
 and reuse bpf_prepare_filter

On 5/6/15 7:12 AM, Daniel Borkmann wrote:
> From: Nicolas Schichan <>
> Remove the calls to bpf_check_classic(), bpf_convert_filter() and
> bpf_migrate_runtime() and let bpf_prepare_filter() take care of that
> instead.
> seccomp_check_filter() is passed to bpf_prepare_filter() so that it
> gets called from there, after bpf_check_classic().
> We can now remove exposure of two internal classic BPF functions
> previously used by seccomp. The export of bpf_check_classic() symbol,
> previously known as sk_chk_filter(), was there since pre git times,
> and no in-tree module was using it, therefore remove it.
> Joint work with Daniel Borkmann.
> Signed-off-by: Nicolas Schichan <>
> Signed-off-by: Daniel Borkmann <>
> Cc: Alexei Starovoitov <>
> Cc: Kees Cook <>

Acked-by: Alexei Starovoitov <>

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