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Message-ID: <3112097.1687814081@warthog.procyon.org.uk>
Date:   Mon, 26 Jun 2023 22:14:41 +0100
From:   David Howells <dhowells@...hat.com>
To:     Jakub Kicinski <kuba@...nel.org>
cc:     dhowells@...hat.com, Ilya Dryomov <idryomov@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>, ceph-devel@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Is ->sendmsg() allowed to change the msghdr struct it is given?

Hi Jakub,

Do you know if ->sendmsg() might alter the msghdr struct it is passed as an
argument?  Certainly it can alter msg_iter, but can it also modify, say,
msg_flags?

Thanks,
David

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