netdev - Re: [PATCH bpf] bpf: Fix modifier skipping logic

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Message-ID: <59c9c081-776c-6f11-cbb2-484edc440b3d@fb.com>
Date:   Fri, 31 Jan 2020 16:46:19 -0800
From:   Yonghong Song <yhs@...com>
To:     Alexei Starovoitov <ast@...nel.org>, <davem@...emloft.net>
CC:     <daniel@...earbox.net>, <netdev@...r.kernel.org>,
        <bpf@...r.kernel.org>, <kernel-team@...com>
Subject: Re: [PATCH bpf] bpf: Fix modifier skipping logic



On 1/31/20 4:03 PM, Alexei Starovoitov wrote:
> Fix the way modifiers are skipped while walking pointers. Otherwise second
> level dereferences of 'const struct foo *' will be rejected by the verifier.
> 
> Fixes: 9e15db66136a ("bpf: Implement accurate raw_tp context access via BTF")
> Signed-off-by: Alexei Starovoitov <ast@...nel.org>

Acked-by: Yonghong Song <yhs@...com>