netdev - Re: [PATCH AUTOSEL 5.15 44/45] skbuff: don't mix ubuf

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Date:   Mon, 8 Aug 2022 11:44:51 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Sasha Levin <sashal@...nel.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Pavel Begunkov <asml.silence@...il.com>, davem@...emloft.net,
        edumazet@...gle.com, pabeni@...hat.com, imagedong@...cent.com,
        luiz.von.dentz@...el.com, vasily.averin@...ux.dev,
        jk@...econstruct.com.au, netdev@...r.kernel.org
Subject: Re: [PATCH AUTOSEL 5.15 44/45] skbuff: don't mix ubuf_info from
 different sources

On Sun,  7 Aug 2022 21:35:48 -0400 Sasha Levin wrote:
> From: Pavel Begunkov <asml.silence@...il.com>
> 
> [ Upstream commit 1b4b2b09d4fb451029b112f17d34792e0277aeb2 ]
> 
> We should not append MSG_ZEROCOPY requests to skbuff with non
> MSG_ZEROCOPY ubuf_info, they might be not compatible.

This is prep for later patches which add a different type of zerocopy.
No need to backport.