linux-kernel - Re: [PATCH nf-next] netfilter: flowtable: dedicated slab for flow entry

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Message-ID: <aXtQu1eW_GR4lTMH@strlen.de>
Date: Thu, 29 Jan 2026 13:21:15 +0100
From: Florian Westphal <fw@...len.de>
To: Qingfang Deng <dqfext@...il.com>
Cc: Pablo Neira Ayuso <pablo@...filter.org>, Phil Sutter <phil@....cc>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>, netfilter-devel@...r.kernel.org,
	coreteam@...filter.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, Lorenzo Bianconi <lorenzo@...nel.org>
Subject: Re: [PATCH nf-next] netfilter: flowtable: dedicated slab for flow
 entry

Qingfang Deng <dqfext@...il.com> wrote:
> On Thu, Jan 29, 2026 at 6:26 PM Florian Westphal <fw@...len.de> wrote:
> > Ok, but please use KMEM_CACHE(), we've had a bunch of patches
> > that removed kmem_cache_create() in several places, I would like
> > to avoid a followup patch.
> 
> But I'm creating a slab with a different name (`nf_flow_offload`) from
> the struct name (`flow_offload`). Should I keep the `nf_` prefix?

Then add a comment that its intentional due to the name, else
we'll get a followup 'cleanup patch' to switch to KMEM_CACHE().