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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: David Howells <dhowells@redhat.com>,
	Sasha Levin <sashal@kernel.org>,
	linux-afs@lists.infradead.org, netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 5.8 05/53] rxrpc: Keep the ACK serial in a var in rxrpc_input_ack()
Date: Mon,  7 Sep 2020 12:31:31 -0400	[thread overview]
Message-ID: <20200907163220.1280412-5-sashal@kernel.org> (raw)
In-Reply-To: <20200907163220.1280412-1-sashal@kernel.org>

From: David Howells <dhowells@redhat.com>

[ Upstream commit 68528d937dcd675e79973061c1a314db598162d1 ]

Keep the ACK serial number in a variable in rxrpc_input_ack() as it's used
frequently.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/rxrpc/input.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c
index 767579328a069..a7699e56eac88 100644
--- a/net/rxrpc/input.c
+++ b/net/rxrpc/input.c
@@ -843,7 +843,7 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb)
 		struct rxrpc_ackinfo info;
 		u8 acks[RXRPC_MAXACKS];
 	} buf;
-	rxrpc_serial_t acked_serial;
+	rxrpc_serial_t ack_serial, acked_serial;
 	rxrpc_seq_t first_soft_ack, hard_ack, prev_pkt;
 	int nr_acks, offset, ioffset;
 
@@ -856,6 +856,7 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb)
 	}
 	offset += sizeof(buf.ack);
 
+	ack_serial = sp->hdr.serial;
 	acked_serial = ntohl(buf.ack.serial);
 	first_soft_ack = ntohl(buf.ack.firstPacket);
 	prev_pkt = ntohl(buf.ack.previousPacket);
@@ -864,31 +865,31 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb)
 	summary.ack_reason = (buf.ack.reason < RXRPC_ACK__INVALID ?
 			      buf.ack.reason : RXRPC_ACK__INVALID);
 
-	trace_rxrpc_rx_ack(call, sp->hdr.serial, acked_serial,
+	trace_rxrpc_rx_ack(call, ack_serial, acked_serial,
 			   first_soft_ack, prev_pkt,
 			   summary.ack_reason, nr_acks);
 
 	if (buf.ack.reason == RXRPC_ACK_PING_RESPONSE)
 		rxrpc_input_ping_response(call, skb->tstamp, acked_serial,
-					  sp->hdr.serial);
+					  ack_serial);
 	if (buf.ack.reason == RXRPC_ACK_REQUESTED)
 		rxrpc_input_requested_ack(call, skb->tstamp, acked_serial,
-					  sp->hdr.serial);
+					  ack_serial);
 
 	if (buf.ack.reason == RXRPC_ACK_PING) {
-		_proto("Rx ACK %%%u PING Request", sp->hdr.serial);
+		_proto("Rx ACK %%%u PING Request", ack_serial);
 		rxrpc_propose_ACK(call, RXRPC_ACK_PING_RESPONSE,
-				  sp->hdr.serial, true, true,
+				  ack_serial, true, true,
 				  rxrpc_propose_ack_respond_to_ping);
 	} else if (sp->hdr.flags & RXRPC_REQUEST_ACK) {
 		rxrpc_propose_ACK(call, RXRPC_ACK_REQUESTED,
-				  sp->hdr.serial, true, true,
+				  ack_serial, true, true,
 				  rxrpc_propose_ack_respond_to_ack);
 	}
 
 	/* Discard any out-of-order or duplicate ACKs (outside lock). */
 	if (!rxrpc_is_ack_valid(call, first_soft_ack, prev_pkt)) {
-		trace_rxrpc_rx_discard_ack(call->debug_id, sp->hdr.serial,
+		trace_rxrpc_rx_discard_ack(call->debug_id, ack_serial,
 					   first_soft_ack, call->ackr_first_seq,
 					   prev_pkt, call->ackr_prev_seq);
 		return;
@@ -904,7 +905,7 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb)
 
 	/* Discard any out-of-order or duplicate ACKs (inside lock). */
 	if (!rxrpc_is_ack_valid(call, first_soft_ack, prev_pkt)) {
-		trace_rxrpc_rx_discard_ack(call->debug_id, sp->hdr.serial,
+		trace_rxrpc_rx_discard_ack(call->debug_id, ack_serial,
 					   first_soft_ack, call->ackr_first_seq,
 					   prev_pkt, call->ackr_prev_seq);
 		goto out;
@@ -964,7 +965,7 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb)
 	    RXRPC_TX_ANNO_LAST &&
 	    summary.nr_acks == call->tx_top - hard_ack &&
 	    rxrpc_is_client_call(call))
-		rxrpc_propose_ACK(call, RXRPC_ACK_PING, sp->hdr.serial,
+		rxrpc_propose_ACK(call, RXRPC_ACK_PING, ack_serial,
 				  false, true,
 				  rxrpc_propose_ack_ping_for_lost_reply);
 
-- 
2.25.1


  parent reply	other threads:[~2020-09-07 17:13 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200907163220.1280412-1-sashal@kernel.org>
2020-09-07 16:31 ` [PATCH AUTOSEL 5.8 04/53] netfilter: conntrack: allow sctp hearbeat after connection re-use Sasha Levin
2020-09-07 16:31 ` Sasha Levin [this message]
2020-09-07 16:31 ` [PATCH AUTOSEL 5.8 06/53] netfilter: nft_set_rbtree: Detect partial overlap with start endpoint match Sasha Levin
2020-09-07 16:31 ` [PATCH AUTOSEL 5.8 07/53] drivers/net/wan/lapbether: Added needed_tailroom Sasha Levin
2020-09-07 16:31 ` [PATCH AUTOSEL 5.8 08/53] NFC: st95hf: Fix memleak in st95hf_in_send_cmd Sasha Levin
2020-09-07 16:31 ` [PATCH AUTOSEL 5.8 09/53] firestream: Fix memleak in fs_open Sasha Levin
2020-09-07 16:31 ` [PATCH AUTOSEL 5.8 14/53] ibmvnic fix NULL tx_pools and rx_tools issue at do_reset Sasha Levin
2020-09-07 21:10   ` Jakub Kicinski
2020-09-07 22:24     ` Sasha Levin
2020-09-07 16:31 ` [PATCH AUTOSEL 5.8 15/53] net: hns3: Fix for geneve tx checksum bug Sasha Levin
2020-09-07 16:31 ` [PATCH AUTOSEL 5.8 17/53] drivers/net/wan/lapbether: Set network_header before transmitting Sasha Levin
2020-09-07 16:31 ` [PATCH AUTOSEL 5.8 18/53] wireless: fix wrong 160/80+80 MHz setting Sasha Levin
2020-09-07 16:31 ` [PATCH AUTOSEL 5.8 19/53] cfg80211: regulatory: reject invalid hints Sasha Levin
2020-09-07 16:31 ` [PATCH AUTOSEL 5.8 20/53] mac80211: reduce packet loss event false positives Sasha Levin
2020-09-07 16:31 ` [PATCH AUTOSEL 5.8 21/53] cfg80211: Adjust 6 GHz frequency to channel conversion Sasha Levin
2020-09-07 16:31 ` [PATCH AUTOSEL 5.8 22/53] net: usb: Fix uninit-was-stored issue in asix_read_phy_addr() Sasha Levin
2020-09-07 16:32 ` [PATCH AUTOSEL 5.8 39/53] drivers/net/wan/hdlc_cisco: Add hard_header_len Sasha Levin
2020-09-07 16:32 ` [PATCH AUTOSEL 5.8 44/53] net: usb: dm9601: Add USB ID of Keenetic Plus DSL Sasha Levin
2020-09-07 16:32 ` [PATCH AUTOSEL 5.8 49/53] drivers/net/wan/hdlc: Change the default of hard_header_len to 0 Sasha Levin

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