linux-kernel - [PATCH] ttyprintk: optimize tpk

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Wed,  4 Nov 2020 14:02:24 +0800
From:   Junyong Sun <sunjy516@...il.com>
To:     arnd@...db.de, gregkh@...uxfoundation.org, sunjunyong@...omi.com
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] ttyprintk: optimize tpk_close flush code

tpk_printk(NULL,0) do nothing but call tpk_flush to
flush buffer, so why don't use tpk_flush diretcly?
this is a small optimization.

Signed-off-by: Junyong Sun <sunjunyong@...omi.com>
---
 drivers/char/ttyprintk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/ttyprintk.c b/drivers/char/ttyprintk.c
index 6a0059e..2ce78b3 100644
--- a/drivers/char/ttyprintk.c
+++ b/drivers/char/ttyprintk.c
@@ -104,7 +104,7 @@ static void tpk_close(struct tty_struct *tty, struct file *filp)
 
 	spin_lock_irqsave(&tpkp->spinlock, flags);
 	/* flush tpk_printk buffer */
-	tpk_printk(NULL, 0);
+	tpk_flush();
 	spin_unlock_irqrestore(&tpkp->spinlock, flags);
 
 	tty_port_close(&tpkp->port, tty, filp);
-- 
2.7.4