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From: Jakub Sitnicki <jakub@cloudflare.com>
To: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>,
	 Alexei Starovoitov <alexei.starovoitov@gmail.com>,
	 bpf <bpf@vger.kernel.org>,
	 Martin KaFai Lau <martin.lau@linux.dev>,
	 Network Development <netdev@vger.kernel.org>,
	kernel-team <kernel-team@cloudflare.com>
Subject: Re: [PATCH RFC bpf-next 0/5] skb extension for BPF local storage
Date: Sun, 01 Mar 2026 18:59:54 +0100	[thread overview]
Message-ID: <87seaje8h1.fsf@cloudflare.com> (raw)
In-Reply-To: <20260228155021.1dc9b127@kernel.org> (Jakub Kicinski's message of "Sat, 28 Feb 2026 15:50:21 -0800")

On Sat, Feb 28, 2026 at 03:50 PM -08, Jakub Kicinski wrote:
> On Fri, 27 Feb 2026 21:11:05 +0100 Jakub Sitnicki wrote:
>> So to exhaust all alternatives I gotta ask - would you and Jakub be open
>> to the idea of a plain byte buffer embedded in skb_ext and exposed as a
>> bpf_dynptr?
>
> I'm fine with that, but admittedly I (like you?) live in 
> the comfortable universe of controlling which .config options
> are suitable for the narrow use cases I care about.
> So I don't really trust my judgment. Adding Paolo..

Good point. Distro's would have to pick one-size-fits-all which won't
work. This needs to be at least a boot-time configurable, which looks
doable with minimal changes to skb_ext setup code.

Thanks for feedback.

      reply	other threads:[~2026-03-01 17:59 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-26 21:12 [PATCH RFC bpf-next 0/5] skb extension for BPF local storage Jakub Sitnicki
2026-02-26 21:12 ` [PATCH RFC bpf-next 1/5] bpf: Introduce local storage for sk_buff Jakub Sitnicki
2026-02-27  2:12   ` kernel test robot
2026-02-26 21:12 ` [PATCH RFC bpf-next 2/5] bpf: Allow passing kernel context pointer to kfuncs Jakub Sitnicki
2026-02-26 21:12 ` [PATCH RFC bpf-next 3/5] bpf: Allow access to bpf_sock_ops_kern->skb Jakub Sitnicki
2026-02-26 21:12 ` [PATCH RFC bpf-next 4/5] selftests/bpf: Add verifier tests for skb local storage Jakub Sitnicki
2026-02-26 21:12 ` [PATCH RFC bpf-next 5/5] selftests/bpf: Add functional " Jakub Sitnicki
2026-02-26 21:56 ` [PATCH RFC bpf-next 0/5] skb extension for BPF " Alexei Starovoitov
2026-02-27 20:11   ` Jakub Sitnicki
2026-02-28 23:50     ` Jakub Kicinski
2026-03-01 17:59       ` Jakub Sitnicki [this message]

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