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Date: Mon, 14 Sep 2026 21:18:27 -1000
Message-ID: <15d99d51c32bed6f26b0d3f521e16b53@kernel.org>
From: Tejun Heo <tj@kernel.org>
To: Amery Hung <ameryhung@gmail.com>
Cc: Tejun Heo <tj@kernel.org>, Alexei Starovoitov <ast@kernel.org>,
 Daniel Borkmann <daniel@iogearbox.net>, Andrii Nakryiko <andrii@kernel.org>,
 Eduard Zingerman <eddyz87@gmail.com>,
 Kumar Kartikeya Dwivedi <memxor@gmail.com>,
 Martin KaFai Lau <martin.lau@linux.dev>, Song Liu <song@kernel.org>,
 Yonghong Song <yonghong.song@linux.dev>, Jiri Olsa <jolsa@kernel.org>,
 Emil Tsalapatis <emil@etsalapatis.com>,
 Ihor Solodrai <ihor.solodrai@linux.dev>, bpf@vger.kernel.org,
 sched-ext@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH bpf] bpf: Keep generic __uninit kfunc arguments live
In-Reply-To:
 <CAMB2axMJ6NJUtDc4xhUbSaqUsRyNXfyWTNTR7SCYyRwiBdoLAg@mail.gmail.com>
References: <86d966ec88bbf27d21b2bb4e18c8aa00@kernel.org>
 <CAMB2axMJ6NJUtDc4xhUbSaqUsRyNXfyWTNTR7SCYyRwiBdoLAg@mail.gmail.com>
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Hello, Amery.

On Mon, Sep 14, 2026 at 05:39:04PM -0700, Amery Hung wrote:
> A generic __uninit argument should behave like a helper output buffer:
> generate MEM_UNINIT | MEM_WRITE, validate it as write-only, and mark
> the written range initialized after the kfunc call.

Kumar suggested a similar solution and will drive the fix. Dropping this
patch.

Thanks.

--
tejun