From: Zheng Yongjun <zhengyongjun3@huawei.com>
Date: Tue, 22 Dec 2020 13:34:15 +0000 (+0800)
Subject: f2fs: Replace expression with offsetof()
X-Git-Tag: microblaze-v5.13~169^2~30
X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=36218b81f094648d929994399eb6eb5c97b991e5;p=linux-2.6-microblaze.git

f2fs: Replace expression with offsetof()

Use the existing offsetof() macro instead of duplicating code.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 3a24423ac65f..5e3fabacefb5 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -2696,7 +2696,7 @@ retry:
 	src = F2FS_INODE(page);
 	dst = F2FS_INODE(ipage);
 
-	memcpy(dst, src, (unsigned long)&src->i_ext - (unsigned long)src);
+	memcpy(dst, src, offsetof(struct f2fs_inode, i_ext));
 	dst->i_size = 0;
 	dst->i_blocks = cpu_to_le64(1);
 	dst->i_links = cpu_to_le32(1);