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Re: [PATCH net-next v2 00/10] net: stop calling __pskb_pull_tail() from drivers
- To: Josef Bacik <josef@xxxxxxxxxxxxxx>
- From: Jakub Kicinski <kuba@xxxxxxxxxx>
- Date: Thu, 8 Oct 2026 14:11:31 -0700
- Authentication-results: eu.smtp.expurgate.cloud; dkim=pass header.s=k20260515 header.d=kernel.org header.i="@kernel.org" header.h="Date:From:To:Cc:Subject:In-Reply-To:References"
- Cc: Paolo Abeni <pabeni@xxxxxxxxxx>, Eric Dumazet <edumazet@xxxxxxxxxx>, "David S. Miller" <davem@xxxxxxxxxxxxx>, Andrew Lunn <andrew+netdev@xxxxxxx>, Saeed Mahameed <saeedm@xxxxxxxxxx>, Tariq Toukan <tariqt@xxxxxxxxxx>, Mark Bloch <mbloch@xxxxxxxxxx>, Leon Romanovsky <leon@xxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>, Tony Nguyen <anthony.l.nguyen@xxxxxxxxx>, Przemek Kitszel <przemyslaw.kitszel@xxxxxxxxx>, Manish Chopra <manishc@xxxxxxxxxxx>, Rahul Verma <rahulv@xxxxxxxxxxx>, GR-Linux-NIC-Dev@xxxxxxxxxxx, Shahed Shaikh <shshaikh@xxxxxxxxxxx>, Simon Horman <horms@xxxxxxxxxx>, netdev@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-rdma@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, intel-wired-lan@xxxxxxxxxxxxxxxx
- Delivery-date: Thu, 08 Oct 2026 21:11:43 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Thu, 08 Oct 2026 21:02:47 +0000 Josef Bacik wrote:
> v1->v2:
> - New 1/10: skb_drop_empty_frags(). xen-netfront, netxen and qlcnic
> relied on __pskb_pull_tail() releasing zero-length frags even when
> there's nothing to pull, which pskb_may_pull() doesn't do (Sashiko).
> - xen-netfront, netxen, qlcnic: call skb_drop_empty_frags() after
> pskb_may_pull().
> - skb_drop_empty_frags() checked with a boot-time test under KASAN and
> kmemleak, on cloned and uncloned skbs.
Please keep in mind that we ask people to limit themselves to 15
outstanding patches per tree. You have 18 right now.
(200 active netdev contributors + an LLM) x 20 patches == insanity :/
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