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From: Jakub Kicinski <kuba@kernel.org>
To: Paolo Abeni <pabeni@redhat.com>
Cc: Florian Westphal <fw@strlen.de>, Breno Leitao <leitao@debian.org>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	leit@meta.com, Chris Mason <clm@fb.com>,
	"open list:NETWORKING DRIVERS" <netdev@vger.kernel.org>,
	open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH net-next] net: skbuff: Skip early return in skb_unref when debugging
Date: Tue, 30 Jul 2024 07:48:26 -0700	[thread overview]
Message-ID: <20240730074826.3b1c6948@kernel.org> (raw)
In-Reply-To: <16add5c4-b1c2-4242-8b71-51332c3bae44@redhat.com>

On Tue, 30 Jul 2024 16:37:10 +0200 Paolo Abeni wrote:
> I think that better specifying the general guidance/expectation should 
> be enough. What about extending the knob description with something alike:
> ---
> diff --git a/net/Kconfig.debug b/net/Kconfig.debug
> index 5e3fffe707dd..058cf031913b 100644
> --- a/net/Kconfig.debug
> +++ b/net/Kconfig.debug
> @@ -24,3 +24,5 @@ config DEBUG_NET
>          help
>            Enable extra sanity checks in networking.
>            This is mostly used by fuzzers, but is safe to select.
> +         This could introduce some very minimal overhead and
> +         is not suggested for production systems.

I'd go with:

             Enable extra sanity checks in networking.
-            This is mostly used by fuzzers, but is safe to select.
+            This is mostly used by fuzzers, and may introduce some
+            minimal overhead, but is safe to select.

What's acceptable on prod systems really depends on the workload..

  reply	other threads:[~2024-07-30 14:48 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-29 10:47 [PATCH net-next] net: skbuff: Skip early return in skb_unref when debugging Breno Leitao
2024-07-30  9:38 ` Paolo Abeni
2024-07-30 10:24   ` Breno Leitao
2024-07-30 10:50   ` Florian Westphal
2024-07-30 11:15     ` Paolo Abeni
2024-07-30 14:10       ` Jakub Kicinski
2024-07-30 14:21         ` Eric Dumazet
2024-07-30 14:37         ` Paolo Abeni
2024-07-30 14:48           ` Jakub Kicinski [this message]
2024-07-31 11:24   ` Breno Leitao
2024-07-31 11:53     ` Jason Xing
2024-08-01  9:07     ` Paolo Abeni
2024-08-01  9:30 ` patchwork-bot+netdevbpf

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