linux-kernel - [PATCH] md-multipath: Replace a seq_printf() call by seq_putc() in multipath

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Date:   Mon, 1 Jul 2019 13:16:42 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     linux-raid@...r.kernel.org, Shaohua Li <shli@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH] md-multipath: Replace a seq_printf() call by seq_putc() in
 multipath_status()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Mon, 1 Jul 2019 13:07:55 +0200

A single character (depending on a condition check) should be put
into a sequence. Thus use the corresponding function “seq_putc”.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/md/md-multipath.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/md/md-multipath.c b/drivers/md/md-multipath.c
index 6780938d2991..3bf6f97ea264 100644
--- a/drivers/md/md-multipath.c
+++ b/drivers/md/md-multipath.c
@@ -146,7 +146,8 @@ static void multipath_status(struct seq_file *seq, struct mddev *mddev)
 	rcu_read_lock();
 	for (i = 0; i < conf->raid_disks; i++) {
 		struct md_rdev *rdev = rcu_dereference(conf->multipaths[i].rdev);
-		seq_printf (seq, "%s", rdev && test_bit(In_sync, &rdev->flags) ? "U" : "_");
+		seq_putc(seq,
+			 rdev && test_bit(In_sync, &rdev->flags) ? 'U' : '_');
 	}
 	rcu_read_unlock();
 	seq_putc(seq, ']');
--
2.22.0