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[2403:580b:97e8:0:82ce:f179:8a79:69f4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2446d53c6e1sm5128645ad.115.2025.08.14.22.02.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Aug 2025 22:02:42 -0700 (PDT) From: alistair23@gmail.com X-Google-Original-From: alistair.francis@wdc.com To: chuck.lever@oracle.com, hare@kernel.org, kernel-tls-handshake@lists.linux.dev, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-nvme@lists.infradead.org, linux-nfs@vger.kernel.org Cc: kbusch@kernel.org, axboe@kernel.dk, hch@lst.de, sagi@grimberg.me, kch@nvidia.com, alistair23@gmail.com, Alistair Francis Subject: [PATCH 4/8] tls: Allow callers to clear errors Date: Fri, 15 Aug 2025 15:02:06 +1000 Message-ID: <20250815050210.1518439-5-alistair.francis@wdc.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250815050210.1518439-1-alistair.francis@wdc.com> References: <20250815050210.1518439-1-alistair.francis@wdc.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Alistair Francis As part of supporting KeyUpdate we are going to pass errors up to the callers of TLS to indaicate a KeyUpdate. Those layers will need to handle the KeyUpdate and as part of that clear the error. Signed-off-by: Alistair Francis --- include/net/tls.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/net/tls.h b/include/net/tls.h index 857340338b69..7de960225da2 100644 --- a/include/net/tls.h +++ b/include/net/tls.h @@ -493,6 +493,13 @@ static inline bool tls_offload_tx_resync_pending(struc= t sock *sk) =20 struct sk_buff *tls_encrypt_skb(struct sk_buff *skb); =20 +static inline void tls_clear_err(struct sock *sk) +{ + WRITE_ONCE(sk->sk_err, 0); + /* Paired with smp_rmb() in tcp_poll() */ + smp_wmb(); +} + #ifdef CONFIG_TLS_DEVICE void tls_device_sk_destruct(struct sock *sk); void tls_offload_tx_resync_request(struct sock *sk, u32 got_seq, u32 exp_s= eq); --=20 2.50.1