netdev - [PATCH] qed: Use list_move_tail instead of list_del/list_add

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Date:   Mon, 17 Oct 2016 15:17:51 +0000
From:   Wei Yongjun <weiyj.lk@...il.com>
To:     Yuval Mintz <Yuval.Mintz@...gic.com>,
        Ariel Elior <Ariel.Elior@...gic.com>
Cc:     Wei Yongjun <weiyongjun1@...wei.com>, everest-linux-l2@...gic.com,
        netdev@...r.kernel.org
Subject: [PATCH] qed: Use list_move_tail instead of list_del/list_add_tail

From: Wei Yongjun <weiyongjun1@...wei.com>

Using list_move_tail() instead of list_del() + list_add_tail().

Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
---
 drivers/net/ethernet/qlogic/qed/qed_ll2.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.c b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
index a6db107..a249c1d 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ll2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
@@ -537,8 +537,7 @@ void qed_ll2_rxq_flush(struct qed_hwfn *p_hwfn, u8 connection_handle)
 		if (!p_pkt)
 			break;
 
-		list_del(&p_pkt->list_entry);
-		list_add_tail(&p_pkt->list_entry, &p_rx->free_descq);
+		list_move_tail(&p_pkt->list_entry, &p_rx->free_descq);
 
 		rx_buf_addr = p_pkt->rx_buf_addr;
 		cookie = p_pkt->cookie;
@@ -992,9 +991,8 @@ static void qed_ll2_post_rx_buffer_notify_fw(struct qed_hwfn *p_hwfn,
 		p_posting_packet = list_first_entry(&p_rx->posting_descq,
 						    struct qed_ll2_rx_packet,
 						    list_entry);
-		list_del(&p_posting_packet->list_entry);
-		list_add_tail(&p_posting_packet->list_entry,
-			      &p_rx->active_descq);
+		list_move_tail(&p_posting_packet->list_entry,
+			       &p_rx->active_descq);
 		b_notify_fw = true;
 	}
 
@@ -1188,8 +1186,7 @@ static void qed_ll2_tx_packet_notify(struct qed_hwfn *p_hwfn,
 		if (!p_pkt)
 			break;
 
-		list_del(&p_pkt->list_entry);
-		list_add_tail(&p_pkt->list_entry, &p_tx->active_descq);
+		list_move_tail(&p_pkt->list_entry, &p_tx->active_descq);
 	}
 
 	SET_FIELD(db_msg.params, CORE_DB_DATA_DEST, DB_DEST_XCM);