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Date: Fri, 21 Nov 2025 06:43:33 -0800
From: Jakub Kicinski <kuba@kernel.org>
To: Maciej =?UTF-8?B?xbtlbmN6eWtvd3NraQ==?= <zenczykowski@gmail.com>
Cc: Linux Network Development Mailing List <netdev@vger.kernel.org>, "David
 S . Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>,
 Paolo Abeni <pabeni@redhat.com>, Lorenzo Colitti <lorenzo@google.com>, Neal
 Cardwell <ncardwell@google.com>, bpf@vger.kernel.org
Subject: Re: [PATCH net] net: fix propagation of EPERM from tcp_connect()
Message-ID: <20251121064333.3668e50e@kernel.org>
In-Reply-To: <CANP3RGeK_NE+U9R59QynCr94B7543VLJnF_Sp3eecKCMCC3XRw@mail.gmail.com>
References: <20251121015933.3618528-1-maze@google.com>
	<CANP3RGeK_NE+U9R59QynCr94B7543VLJnF_Sp3eecKCMCC3XRw@mail.gmail.com>
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On Fri, 21 Nov 2025 11:05:39 +0900 Maciej =C5=BBenczykowski wrote:
> Perhaps I should have sent this as an RFC, as I haven't had the
> opportunity to test this fix in the full blown environment where we're
> running into problems.
>=20
> I'm hoping to at least get feedback on whether this is acceptable
> and/or even the right approach -- or if someone has a better idea or
> if there's some fundamental reason we cannot return EPERM here.

FWIW this breaks the mptcp_join.sh test, too:

https://netdev-3.bots.linux.dev/vmksft-mptcp/results/394900/1-mptcp-join-sh=
/stdout