linux-kernel - [PATCH -next v2] platform/surface: aggregator: Use list_move_tail instead of list_del/list_add_tail in ssh_request

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Message-ID: <20210609072638.1358174-1-libaokun1@huawei.com>
Date:   Wed, 9 Jun 2021 15:26:38 +0800
From:   Baokun Li <libaokun1@...wei.com>
To:     <linux-kernel@...r.kernel.org>,
        Maximilian Luz <luzmaximilian@...il.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <mgross@...ux.intel.com>
CC:     <weiyongjun1@...wei.com>, <yuehaibing@...wei.com>,
        <yangjihong1@...wei.com>, <yukuai3@...wei.com>,
        <libaokun1@...wei.com>, <platform-driver-x86@...r.kernel.org>,
        <kernel-janitors@...r.kernel.org>, Hulk Robot <hulkci@...wei.com>
Subject: [PATCH -next v2] platform/surface: aggregator: Use list_move_tail instead of list_del/list_add_tail in ssh_request_layer.c

Using list_move_tail() instead of list_del() + list_add_tail() in ssh_request_layer.c.

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Baokun Li <libaokun1@...wei.com>
---
V1->V2:
	CC mailist

 .../surface/aggregator/ssh_request_layer.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/platform/surface/aggregator/ssh_request_layer.c b/drivers/platform/surface/aggregator/ssh_request_layer.c
index 52a83a8fcf82..fec2d7af2646 100644
--- a/drivers/platform/surface/aggregator/ssh_request_layer.c
+++ b/drivers/platform/surface/aggregator/ssh_request_layer.c
@@ -863,9 +863,7 @@ static void ssh_rtl_timeout_reap(struct work_struct *work)
 		clear_bit(SSH_REQUEST_SF_PENDING_BIT, &r->state);
 
 		atomic_dec(&rtl->pending.count);
-		list_del(&r->node);
-
-		list_add_tail(&r->node, &claimed);
+		list_move_tail(&r->node, &claimed);
 	}
 	spin_unlock(&rtl->pending.lock);
 
@@ -1204,8 +1202,7 @@ void ssh_rtl_shutdown(struct ssh_rtl *rtl)
 		smp_mb__before_atomic();
 		clear_bit(SSH_REQUEST_SF_QUEUED_BIT, &r->state);
 
-		list_del(&r->node);
-		list_add_tail(&r->node, &claimed);
+		list_move_tail(&r->node, &claimed);
 	}
 	spin_unlock(&rtl->queue.lock);
 
@@ -1238,8 +1235,7 @@ void ssh_rtl_shutdown(struct ssh_rtl *rtl)
 			smp_mb__before_atomic();
 			clear_bit(SSH_REQUEST_SF_PENDING_BIT, &r->state);
 
-			list_del(&r->node);
-			list_add_tail(&r->node, &claimed);
+			list_move_tail(&r->node, &claimed);
 		}
 		spin_unlock(&rtl->pending.lock);
 	}