[PATCH net 1/4] tls: recv: process_rx_list shouldn't use an offset with kvec

From: Sabrina Dubroca <sd@queasysnail.net>
To: netdev@vger.kernel.org
Cc: Sabrina Dubroca <sd@queasysnail.net>,
	Vakul Garg <vakul.garg@nxp.com>,
	Boris Pismenny <borisp@nvidia.com>,
	John Fastabend <john.fastabend@gmail.com>,
	Jakub Kicinski <kuba@kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Paolo Abeni <pabeni@redhat.com>
Subject: [PATCH net 1/4] tls: recv: process_rx_list shouldn't use an offset with kvec
Date: Mon, 25 Mar 2024 16:56:45 +0100	[thread overview]
Message-ID: <e5487514f828e0347d2b92ca40002c62b58af73d.1711120964.git.sd@queasysnail.net> (raw)
In-Reply-To: <cover.1711120964.git.sd@queasysnail.net>

Only MSG_PEEK needs to copy from an offset during the final
process_rx_list call, because the bytes we copied at the beginning of
tls_sw_recvmsg were left on the rx_list. In the KVEC case, we removed
data from the rx_list as we were copying it, so there's no need to use
an offset, just like in the normal case.

Fixes: 692d7b5d1f91 ("tls: Fix recvmsg() to be able to peek across multiple records")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
---
 net/tls/tls_sw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index 211f57164cb6..3cdc6bc9fba6 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -2152,7 +2152,7 @@ int tls_sw_recvmsg(struct sock *sk,
 		}
 
 		/* Drain records from the rx_list & copy if required */
-		if (is_peek || is_kvec)
+		if (is_peek)
 			err = process_rx_list(ctx, msg, &control, copied + peeked,
 					      decrypted - peeked, is_peek, NULL);
 		else
-- 
2.43.0

