linux-kernel - [PATCH] fs/ext2: replace ternary operator with min

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Message-Id: <20220714063318.1777139-1-13667453960@163.com>
Date:   Thu, 14 Jul 2022 14:33:18 +0800
From:   Jiangshan Yi <13667453960@....com>
To:     jack@...e.com
Cc:     linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jiangshan Yi <yijiangshan@...inos.cn>
Subject: [PATCH] fs/ext2: replace ternary operator with min_t()

From: Jiangshan Yi <yijiangshan@...inos.cn>

Fix the following coccicheck warning:

fs/ext2/super.c:1494: WARNING opportunity for min().
fs/ext2/super.c:1533: WARNING opportunity for min().

min_t() macro is defined in include/linux/minmax.h. It avoids
multiple evaluations of the arguments when non-constant and performs
strict type-checking.

Signed-off-by: Jiangshan Yi <yijiangshan@...inos.cn>
---
 fs/ext2/super.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index f6a19f6d9f6d..300f2f0cf566 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -1490,8 +1490,7 @@ static ssize_t ext2_quota_read(struct super_block *sb, int type, char *data,
 		len = i_size-off;
 	toread = len;
 	while (toread > 0) {
-		tocopy = sb->s_blocksize - offset < toread ?
-				sb->s_blocksize - offset : toread;
+		tocopy = min_t(size_t, sb->s_blocksize - offset, toread);
 
 		tmp_bh.b_state = 0;
 		tmp_bh.b_size = sb->s_blocksize;
@@ -1529,8 +1528,7 @@ static ssize_t ext2_quota_write(struct super_block *sb, int type,
 	struct buffer_head *bh;
 
 	while (towrite > 0) {
-		tocopy = sb->s_blocksize - offset < towrite ?
-				sb->s_blocksize - offset : towrite;
+		tocopy = min_t(size_t, sb->s_blocksize - offset, towrite);
 
 		tmp_bh.b_state = 0;
 		tmp_bh.b_size = sb->s_blocksize;
-- 
2.25.1