linux-kernel - Re: [PATCH bpf-next] bpf: Fix bpf_cgroup_from

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Date:   Tue, 28 Feb 2023 08:09:27 -0800
From:   Yonghong Song <yhs@...a.com>
To:     David Vernet <void@...ifault.com>, bpf@...r.kernel.org
Cc:     ast@...nel.org, daniel@...earbox.net, andrii@...nel.org,
        martin.lau@...ux.dev, song@...nel.org, john.fastabend@...il.com,
        kpsingh@...nel.org, sdf@...gle.com, haoluo@...gle.com,
        jolsa@...nel.org, linux-kernel@...r.kernel.org,
        kernel-team@...a.com, tj@...nel.org
Subject: Re: [PATCH bpf-next] bpf: Fix bpf_cgroup_from_id() doxygen header



On 2/28/23 7:28 AM, David Vernet wrote:
> In commit 332ea1f697be ("bpf: Add bpf_cgroup_from_id() kfunc"), a new
> bpf_cgroup_from_id() kfunc was added which allows a BPF program to
> lookup and acquire a reference to a cgroup from a cgroup id. The
> commit's doxygen comment seems to have copy-pasted fields, which causes
> BPF kfunc helper documentation to fail to render:
> 
> <snip>/helpers.c:2114: warning: Excess function parameter 'cgrp'...
> <snip>/helpers.c:2114: warning: Excess function parameter 'level'...
> 
> <snip>
> 
> <snip>/helpers.c:2114: warning: Excess function parameter 'level'...
> 
> This patch fixes the doxygen header.
> 
> Fixes: 332ea1f697be ("bpf: Add bpf_cgroup_from_id() kfunc")
> Signed-off-by: David Vernet <void@...ifault.com>

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