linux-kernel - Re: [PATCH bpf-next 1/5] bpf: Add bpf_cpumask_first

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Message-ID: <7575cded-9fc1-7ed7-da4d-bc4147ade742@meta.com>
Date:   Mon, 12 Jun 2023 08:19:38 -0700
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, yhs@...com,
        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 1/5] bpf: Add bpf_cpumask_first_and() kfunc



On 6/9/23 8:50 PM, David Vernet wrote:
> We currently provide bpf_cpumask_first(), bpf_cpumask_any(), and
> bpf_cpumask_any_and() kfuncs. bpf_cpumask_any() and
> bpf_cpumask_any_and() are confusing misnomers in that they actually just
> call cpumask_first() and cpumask_first_and() respectively.
> 
> We'll replace them with bpf_cpumask_any_distribute() and
> bpf_cpumask_any_distribute_and() kfuncs in a subsequent patch, so let's
> ensure feature parity by adding a bpf_cpumask_first_and() kfunc to
> account for bpf_cpumask_any_and() being removed.
> 
> Signed-off-by: David Vernet <void@...ifault.com>

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