linux-kernel - [PATCH net-next 04/37] rxrpc: Don't set the MORE-PACKETS rxrpc wire header flag

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Message-ID: <20241202143057.378147-5-dhowells@redhat.com>
Date: Mon,  2 Dec 2024 14:30:22 +0000
From: David Howells <dhowells@...hat.com>
To: netdev@...r.kernel.org
Cc: David Howells <dhowells@...hat.com>,
	Marc Dionne <marc.dionne@...istor.com>,
	Yunsheng Lin <linyunsheng@...wei.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	linux-afs@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH net-next 04/37] rxrpc: Don't set the MORE-PACKETS rxrpc wire header flag

The MORE-PACKETS rxrpc header flag hasn't actually been looked at by
anything since 1988 and not all implementations generate it.

Change rxrpc so that it doesn't set MORE-PACKETS at all rather than setting
it inconsistently.

cc: David Howells <dhowells@...hat.com>
cc: Marc Dionne <marc.dionne@...istor.com>
cc: "David S. Miller" <davem@...emloft.net>
cc: Eric Dumazet <edumazet@...gle.com>
cc: Jakub Kicinski <kuba@...nel.org>
cc: Paolo Abeni <pabeni@...hat.com>
cc: linux-afs@...ts.infradead.org
cc: netdev@...r.kernel.org
---
 net/rxrpc/sendmsg.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/net/rxrpc/sendmsg.c b/net/rxrpc/sendmsg.c
index b04afb5df241..546abb463c3f 100644
--- a/net/rxrpc/sendmsg.c
+++ b/net/rxrpc/sendmsg.c
@@ -385,9 +385,6 @@ static int rxrpc_send_data(struct rxrpc_sock *rx,
 		    (msg_data_left(msg) == 0 && !more)) {
 			if (msg_data_left(msg) == 0 && !more)
 				txb->flags |= RXRPC_LAST_PACKET;
-			else if (call->tx_top - call->acks_hard_ack <
-				 call->tx_winsize)
-				txb->flags |= RXRPC_MORE_PACKETS;
 
 			ret = call->security->secure_packet(call, txb);
 			if (ret < 0)