netdev - Re: [PATCH net v2 2/4] bnxt_en: Fix skb recycling logic in bnxt_deliver

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Date: Thu, 7 Dec 2023 10:22:14 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Michael Chan <michael.chan@...adcom.com>
Cc: davem@...emloft.net, netdev@...r.kernel.org, edumazet@...gle.com,
 pabeni@...hat.com, gospo@...adcom.com, Sreekanth Reddy
 <sreekanth.reddy@...adcom.com>, Somnath Kotur <somnath.kotur@...adcom.com>,
 Andy Gospodarek <andrew.gospodarek@...adcom.com>, Vikas Gupta
 <vikas.gupta@...adcom.com>
Subject: Re: [PATCH net v2 2/4] bnxt_en: Fix skb recycling logic in
 bnxt_deliver_skb()

On Thu, 7 Dec 2023 10:21:44 -0800 Jakub Kicinski wrote:
> On Wed,  6 Dec 2023 16:05:49 -0800 Michael Chan wrote:
> > Receive SKBs can go through the VF-rep path or the normal path.
> > skb_mark_for_recycle() is only called for the normal path.  Fix it
> > to do it for both paths to fix possible stalled page pool shutdown
> > errors.  
> 
> This patch is probably fine, but since I'm complaining -
> IMHO it may be better to mark the skbs right after they
> are allocated. Catching all "exit points" seems very error
> prone...

To be 100% clear - I mean that as a suggestion for a potential 
net-next cleanup.