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Date: Wed, 12 Aug 2026 17:10:26 -0700
From: Jakub Kicinski <kuba@kernel.org>
To: Bryam Vargas via B4 Relay <devnull+hexlabsecurity.proton.me@kernel.org>,
 Dust Li <dust.li@linux.alibaba.com>, Sidraya Jayagond
 <sidraya@linux.ibm.com>, Wenjia Zhang <wenjia@linux.ibm.com>, "D. Wythe"
 <alibuda@linux.alibaba.com>, Mahanta Jambigi <mjambigi@linux.ibm.com>, Tony
 Lu <tonylu@linux.alibaba.com>, Wen Gu <guwen@linux.alibaba.com>
Cc: hexlabsecurity@proton.me, Paolo Abeni <pabeni@redhat.com>, "David S.
 Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>,
 linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org,
 netdev@vger.kernel.org, Simon Horman <horms@kernel.org>,
 linux-s390@vger.kernel.org
Subject: Re: [PATCH net v2 0/2] net/smc: close the SMC-D teardown window
 around the ghost send buffer
Message-ID: <20260812171026.7f98785a@kernel.org>
In-Reply-To: <20260808-b4-disp-22f119e6-v2-0-61647601a6f3@proton.me>
References: <20260808-b4-disp-22f119e6-v2-0-61647601a6f3@proton.me>
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On Sat, 08 Aug 2026 02:21:22 -0500 Bryam Vargas via B4 Relay wrote:
> Both patches only matter on the SMC-D DMB-nocopy path, where the ghost send
> buffer exists, and the only in-tree provider of support_mmapped_rdmb is
> dibs_loopback. CONFIG_DIBS_LO is default n and its help calls it a testing aid,
> so on a stock config neither bug is reachable.

SMC maintainers, please TAL.