linux-kernel - [PATCH -next v2] drm/nouveau/mpeg: use list_move instead of list_del/list

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Date:   Wed, 9 Jun 2021 15:07:13 +0800
From:   Baokun Li <libaokun1@...wei.com>
To:     <linux-kernel@...r.kernel.org>, Ben Skeggs <bskeggs@...hat.com>,
        "David Airlie" <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
        Lyude Paul <lyude@...hat.com>
CC:     <weiyongjun1@...wei.com>, <yuehaibing@...wei.com>,
        <yangjihong1@...wei.com>, <yukuai3@...wei.com>,
        <libaokun1@...wei.com>, <dri-devel@...ts.freedesktop.org>,
        <nouveau@...ts.freedesktop.org>, <kernel-janitors@...r.kernel.org>,
        Hulk Robot <hulkci@...wei.com>
Subject: [PATCH -next v2] drm/nouveau/mpeg: use list_move instead of list_del/list_add in nv44.c

Using list_move() instead of list_del() + list_add() in nv44.c.

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

 drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c b/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c
index 521ce43a2871..16acd33764de 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c
@@ -158,8 +158,7 @@ nv44_mpeg_intr(struct nvkm_engine *engine)
 	list_for_each_entry(temp, &mpeg->chan, head) {
 		if (temp->inst >> 4 == inst) {
 			chan = temp;
-			list_del(&chan->head);
-			list_add(&chan->head, &mpeg->chan);
+			list_move(&chan->head, &mpeg->chan);
 			break;
 		}
 	}