netdev - Re: [PATCH 2/2] bpf_encoder: Translate SHN_XINDEX in symbol's st

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Message-ID: <d0bd23aa-2b44-2caa-703b-13e9f32ff9c0@redhat.com>
Date:   Mon, 25 Jan 2021 11:16:29 -0500
From:   Joe Lawrence <joe.lawrence@...hat.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...nel.org>
Cc:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andriin@...com>, dwarves@...r.kernel.org,
        netdev@...r.kernel.org, bpf@...r.kernel.org,
        Yonghong Song <yhs@...com>, Hao Luo <haoluo@...gle.com>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...omium.org>, Mark Wielaard <mjw@...hat.com>
Subject: Re: [PATCH 2/2] bpf_encoder: Translate SHN_XINDEX in symbol's
 st_shndx values

On 1/22/21 2:52 PM, Arnaldo Carvalho de Melo wrote:
> 
> Who originally reported this? Joe? Also can someone provide a Tested-by:
> in addition to mine when I get this detailed set of steps to test?
> 

As Jiri noted, we tested v2 I think, so if there is a v4 build we could 
give a spin, just let us know.

In the meantime, for kpatch, we figured that we could just temporarily 
disable CONFIG_DEBUG_INFO_BTF in the scripts/link-vmlinux.sh file during 
kpatch builds ... that would leave kernel code intact, but skip the BTF 
generation step (for which kpatch doesn't need anyway).

Thanks,

-- Joe