linux-kernel - Re: [PATCH bpf-next v1 02/10] bpf: Introduce struct bpf_kfunc

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Message-ID: <eda8a78a2c102751c9726960cf5d7cb24985f23e.camel@gmail.com>
Date: Tue, 13 Jan 2026 13:46:41 -0800
From: Eduard Zingerman <eddyz87@...il.com>
To: Ihor Solodrai <ihor.solodrai@...ux.dev>, Alexei Starovoitov
 <ast@...nel.org>,  Andrii Nakryiko <andrii@...nel.org>, Daniel Borkmann
 <daniel@...earbox.net>, Martin KaFai Lau <martin.lau@...ux.dev>
Cc: Mykyta Yatsenko <yatsenko@...a.com>, Tejun Heo <tj@...nel.org>, Alan
 Maguire <alan.maguire@...cle.com>, Benjamin Tissoires <bentiss@...nel.org>,
 Jiri Kosina	 <jikos@...nel.org>, bpf@...r.kernel.org,
 linux-kernel@...r.kernel.org, 	linux-input@...r.kernel.org,
 sched-ext@...ts.linux.dev
Subject: Re: [PATCH bpf-next v1 02/10] bpf: Introduce struct bpf_kfunc_meta

On Fri, 2026-01-09 at 10:48 -0800, Ihor Solodrai wrote:
> There is code duplication between add_kfunc_call() and
> fetch_kfunc_meta() collecting information about a kfunc from BTF.
> 
> Introduce struct bpf_kfunc_meta to hold common kfunc BTF data and
> implement fetch_kfunc_meta() to fill it in, instead of struct
> bpf_kfunc_call_arg_meta directly.
> 
> Then use these in add_kfunc_call() and (new) fetch_kfunc_arg_meta()
> functions, and fixup previous usages of fetch_kfunc_meta() to
> fetch_kfunc_arg_meta().
> 
> Besides the code dedup, this change enables add_kfunc_call() to access
> kfunc->flags.
> 
> Signed-off-by: Ihor Solodrai <ihor.solodrai@...ux.dev>
> ---

Acked-by: Eduard Zingerman <eddyz87@...il.com>

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