linux-kernel - [PATCH 3/3] mm: kmsan: use helper macros PAGE_ALIGN and PAGE_ALIGN

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Message-ID: <20230727011612.2721843-4-zhangpeng362@huawei.com>
Date:   Thu, 27 Jul 2023 09:16:12 +0800
From:   Peng Zhang <zhangpeng362@...wei.com>
To:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>
CC:     <glider@...gle.com>, <elver@...gle.com>, <dvyukov@...gle.com>,
        <kasan-dev@...glegroups.com>, <akpm@...ux-foundation.org>,
        <wangkefeng.wang@...wei.com>, <sunnanyong@...wei.com>,
        ZhangPeng <zhangpeng362@...wei.com>
Subject: [PATCH 3/3] mm: kmsan: use helper macros PAGE_ALIGN and PAGE_ALIGN_DOWN

From: ZhangPeng <zhangpeng362@...wei.com>

Use helper macros PAGE_ALIGN and PAGE_ALIGN_DOWN to improve code
readability. No functional modification involved.

Signed-off-by: ZhangPeng <zhangpeng362@...wei.com>
---
 mm/kmsan/shadow.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/kmsan/shadow.c b/mm/kmsan/shadow.c
index 966994268a01..87318f9170f1 100644
--- a/mm/kmsan/shadow.c
+++ b/mm/kmsan/shadow.c
@@ -281,8 +281,8 @@ void __init kmsan_init_alloc_meta_for_range(void *start, void *end)
 	struct page *page;
 	u64 size;
 
-	start = (void *)ALIGN_DOWN((u64)start, PAGE_SIZE);
-	size = ALIGN((u64)end - (u64)start, PAGE_SIZE);
+	start = (void *)PAGE_ALIGN_DOWN((u64)start);
+	size = PAGE_ALIGN((u64)end - (u64)start);
 	shadow = memblock_alloc(size, PAGE_SIZE);
 	origin = memblock_alloc(size, PAGE_SIZE);
 	for (u64 addr = 0; addr < size; addr += PAGE_SIZE) {
-- 
2.25.1