netdev - Re: [PATCH v4 bpf-next 0/2] bpf: add cg_skb_is_valid

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Message-ID: <20181018233403.xnea2m7ntwxue44r@ast-mbp.dhcp.thefacebook.com>
Date:   Thu, 18 Oct 2018 16:34:06 -0700
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Song Liu <songliubraving@...com>
Cc:     netdev@...r.kernel.org, ast@...nel.org, daniel@...earbox.net,
        kernel-team@...com
Subject: Re: [PATCH v4 bpf-next 0/2] bpf: add cg_skb_is_valid_access

On Thu, Oct 18, 2018 at 09:06:47AM -0700, Song Liu wrote:
> Changes v3 -> v4:
> 1. Fixed crash issue reported by Alexei.
> 
> Changes v2 -> v3:
> 1. Added helper function bpf_compute_and_save_data_pointers() and
>    bpf_restore_data_pointers().
> 
> Changes v1 -> v2:
> 1. Updated the list of read-only fields, and read-write fields.
> 2. Added dummy sk to bpf_prog_test_run_skb().
> 
> This set enables BPF program of type BPF_PROG_TYPE_CGROUP_SKB to access
> some __skb_buff data directly.

Applied, Thanks