linux-kernel - [PATCH 1/2] drm/nouveau: Use vmalloc

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Message-Id: <20250816143752.397973-2-rongqianfeng@vivo.com>
Date: Sat, 16 Aug 2025 22:37:50 +0800
From: Qianfeng Rong <rongqianfeng@...o.com>
To: Lyude Paul <lyude@...hat.com>,
	Danilo Krummrich <dakr@...nel.org>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	dri-devel@...ts.freedesktop.org (open list:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS),
	nouveau@...ts.freedesktop.org (open list:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS),
	linux-kernel@...r.kernel.org (open list)
Cc: Qianfeng Rong <rongqianfeng@...o.com>
Subject: [PATCH 1/2] drm/nouveau: Use vmalloc_array to simplify code

Use vmalloc_array() instead of vmalloc() to simplify the functions
nv84_fence_suspend().

vmalloc_array() is also optimized better, resulting in less instructions
being used.

Signed-off-by: Qianfeng Rong <rongqianfeng@...o.com>
---
 drivers/gpu/drm/nouveau/nv84_fence.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nv84_fence.c b/drivers/gpu/drm/nouveau/nv84_fence.c
index 1765b2cedaf9..63a477e631ae 100644
--- a/drivers/gpu/drm/nouveau/nv84_fence.c
+++ b/drivers/gpu/drm/nouveau/nv84_fence.c
@@ -158,7 +158,7 @@ nv84_fence_suspend(struct nouveau_drm *drm)
 	struct nv84_fence_priv *priv = drm->fence;
 	int i;
 
-	priv->suspend = vmalloc(array_size(sizeof(u32), drm->chan_total));
+	priv->suspend = vmalloc_array(drm->chan_total, sizeof(u32));
 	if (priv->suspend) {
 		for (i = 0; i < drm->chan_total; i++)
 			priv->suspend[i] = nouveau_bo_rd32(priv->bo, i*4);
-- 
2.34.1