linux-kernel - [PATCH 2/4] media: mediatek: vcodec: Drop unnecessary variable

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Date:   Mon, 13 Nov 2023 20:26:50 +0800
From:   Fei Shao <fshao@...omium.org>
To:     Hans Verkuil <hverkuil-cisco@...all.nl>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Cc:     Fei Shao <fshao@...omium.org>,
        Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Nicolas Dufresne <nicolas.dufresne@...labora.com>,
        Nícolas F. R. A. Prado 
        <nfraprado@...labora.com>, Tiffany Lin <tiffany.lin@...iatek.com>,
        Yunfei Dong <yunfei.dong@...iatek.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org, linux-mediatek@...ts.infradead.org
Subject: [PATCH 2/4] media: mediatek: vcodec: Drop unnecessary variable

It's unclear why only mem->size has local copies without particular
usage in mtk_vcodec_mem_alloc() and mtk_vcodec_mem_free(), and they
seem removable.

Drop them to make the code visually consistent, and update printk format
identifier accordingly.

Signed-off-by: Fei Shao <fshao@...omium.org>
---

 .../mediatek/vcodec/common/mtk_vcodec_util.c  | 22 +++++++++----------
 1 file changed, 10 insertions(+), 12 deletions(-)

diff --git a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_util.c b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_util.c
index ea8c35c0e667..23bea2702c9a 100644
--- a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_util.c
+++ b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_util.c
@@ -49,7 +49,6 @@ int mtk_vcodec_mem_alloc(void *priv, struct mtk_vcodec_mem *mem)
 {
 	enum mtk_instance_type inst_type = *((unsigned int *)priv);
 	struct platform_device *plat_dev;
-	unsigned long size = mem->size;
 	int id;
 
 	if (inst_type == MTK_INST_ENCODER) {
@@ -64,15 +63,15 @@ int mtk_vcodec_mem_alloc(void *priv, struct mtk_vcodec_mem *mem)
 		id = dec_ctx->id;
 	}
 
-	mem->va = dma_alloc_coherent(&plat_dev->dev, size, &mem->dma_addr, GFP_KERNEL);
+	mem->va = dma_alloc_coherent(&plat_dev->dev, mem->size, &mem->dma_addr, GFP_KERNEL);
 	if (!mem->va) {
-		mtk_v4l2_err(plat_dev, "%s dma_alloc size=%ld failed!",
-			     __func__, size);
+		mtk_v4l2_err(plat_dev, "%s dma_alloc size=0x%zx failed!",
+			     __func__, mem->size);
 		return -ENOMEM;
 	}
 
-	mtk_v4l2_debug(plat_dev, 3, "[%d] - va = %p dma = 0x%lx size = 0x%lx", id, mem->va,
-		       (unsigned long)mem->dma_addr, size);
+	mtk_v4l2_debug(plat_dev, 3, "[%d] - va = %p dma = 0x%lx size = 0x%zx", id, mem->va,
+		       (unsigned long)mem->dma_addr, mem->size);
 
 	return 0;
 }
@@ -82,7 +81,6 @@ void mtk_vcodec_mem_free(void *priv, struct mtk_vcodec_mem *mem)
 {
 	enum mtk_instance_type inst_type = *((unsigned int *)priv);
 	struct platform_device *plat_dev;
-	unsigned long size = mem->size;
 	int id;
 
 	if (inst_type == MTK_INST_ENCODER) {
@@ -98,15 +96,15 @@ void mtk_vcodec_mem_free(void *priv, struct mtk_vcodec_mem *mem)
 	}
 
 	if (!mem->va) {
-		mtk_v4l2_err(plat_dev, "%s dma_free size=%ld failed!",
-			     __func__, size);
+		mtk_v4l2_err(plat_dev, "%s dma_free size=0x%zx failed!",
+			     __func__, mem->size);
 		return;
 	}
 
-	mtk_v4l2_debug(plat_dev, 3, "[%d] - va = %p dma = 0x%lx size = 0x%lx", id, mem->va,
-		       (unsigned long)mem->dma_addr, size);
+	mtk_v4l2_debug(plat_dev, 3, "[%d] - va = %p dma = 0x%lx size = 0x%zx", id, mem->va,
+		       (unsigned long)mem->dma_addr, mem->size);
 
-	dma_free_coherent(&plat_dev->dev, size, mem->va, mem->dma_addr);
+	dma_free_coherent(&plat_dev->dev, mem->size, mem->va, mem->dma_addr);
 	mem->va = NULL;
 	mem->dma_addr = 0;
 	mem->size = 0;
-- 
2.42.0.869.gea05f2083d-goog