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Message-ID: <202503171021222703hl0ry06tOCRmPFcWNp5U@zte.com.cn>
Date: Mon, 17 Mar 2025 10:21:22 +0800 (CST)
From: <feng.wei8@....com.cn>
To: <sumit.semwal@...aro.org>
Cc: <benjamin.gaignard@...labora.com>, <brian.starkey@....com>,
<jstultz@...gle.com>, <tjmercier@...gle.com>,
<christian.koenig@....com>, <linux-media@...r.kernel.org>,
<dri-devel@...ts.freedesktop.org>, <linaro-mm-sig@...ts.linaro.org>,
<linux-kernel@...r.kernel.org>
Subject: [PATCH v3] dma-buf: heaps: Replace nested max() with single max3()
From: FengWei <feng.wei8@....com.cn>
Use max3() macro instead of nesting max() to simplify the return
statement.
Signed-off-by: FengWei <feng.wei8@....com.cn>
---
v2 -> v3
fix the format of this patch
drivers/dma-buf/dma-heap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma-buf/dma-heap.c b/drivers/dma-buf/dma-heap.c
index 3cbe87d4a464..96cb9ab5731a 100644
--- a/drivers/dma-buf/dma-heap.c
+++ b/drivers/dma-buf/dma-heap.c
@@ -147,7 +147,7 @@ static long dma_heap_ioctl(struct file *file, unsigned int ucmd,
in_size = 0;
if ((ucmd & kcmd & IOC_OUT) == 0)
out_size = 0;
- ksize = max(max(in_size, out_size), drv_size);
+ ksize = max3(in_size, out_size, drv_size);
/* If necessary, allocate buffer for ioctl argument */
if (ksize > sizeof(stack_kdata)) {
--
2.25.1
<div class="zcontentRow"><p>From: FengWei <feng.wei8@....com.cn><br></p><p><br></p><p>Use max3() macro instead of nesting max() to simplify the return</p><p>statement.</p><p><br></p><p>Signed-off-by: FengWei <feng.wei8@....com.cn></p><p>---</p><p>v2 -> v3</p><p>fix the format of this patch<br></p><p> drivers/dma-buf/dma-heap.c | 2 +-</p><p> 1 file changed, 1 insertion(+), 1 deletion(-)</p><p><br></p><p>diff --git a/drivers/dma-buf/dma-heap.c b/drivers/dma-buf/dma-heap.c</p><p>index 3cbe87d4a464..96cb9ab5731a 100644</p><p>--- a/drivers/dma-buf/dma-heap.c</p><p>+++ b/drivers/dma-buf/dma-heap.c</p><p>@@ -147,7 +147,7 @@ static long dma_heap_ioctl(struct file *file, unsigned int ucmd,</p><p> <span style="white-space:pre"> </span>in_size = 0;</p><p> <span style="white-space:pre"> </span>if ((ucmd & kcmd & IOC_OUT) == 0)</p><p> <span style="white-space:pre"> </span>out_size = 0;</p><p>-<span style="white-space:pre"> </span>ksize = max(max(in_size, out_size), drv_size);</p><p>+<span style="white-space:pre"> </span>ksize = max3(in_size, out_size, drv_size);</p><p> </p><p> <span style="white-space:pre"> </span>/* If necessary, allocate buffer for ioctl argument */</p><p> <span style="white-space:pre"> </span>if (ksize > sizeof(stack_kdata)) {</p><p>-- </p><p>2.25.1</p><p style="font-size:14px;font-family:微软雅黑,Microsoft YaHei;"><br></p><p style="font-size:14px;font-family:微软雅黑,Microsoft YaHei;"><br></p><p style="font-size:14px;font-family:微软雅黑,Microsoft YaHei;"><br></p><p style="font-size:14px;font-family:微软雅黑,Microsoft YaHei;"><br></p></div>
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