linux-kernel - [PATCH printk v3 27/40] tty: serial: earlycon: use console_is

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Message-Id: <20221107141638.3790965-28-john.ogness@linutronix.de>
Date:   Mon,  7 Nov 2022 15:22:25 +0106
From:   John Ogness <john.ogness@...utronix.de>
To:     Petr Mladek <pmladek@...e.com>
Cc:     Sergey Senozhatsky <senozhatsky@...omium.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>, linux-serial@...r.kernel.org
Subject: [PATCH printk v3 27/40] tty: serial: earlycon: use console_is_registered()

It is not reliable to check for CON_ENABLED in order to identify if a
console is registered. Use console_is_registered() instead.

Signed-off-by: John Ogness <john.ogness@...utronix.de>
---
 drivers/tty/serial/earlycon.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/earlycon.c b/drivers/tty/serial/earlycon.c
index a5f380584cda..4f6e9bf57169 100644
--- a/drivers/tty/serial/earlycon.c
+++ b/drivers/tty/serial/earlycon.c
@@ -181,7 +181,7 @@ int __init setup_earlycon(char *buf)
 	if (!buf || !buf[0])
 		return -EINVAL;
 
-	if (early_con.flags & CON_ENABLED)
+	if (console_is_registered(&early_con))
 		return -EALREADY;
 
 again:
@@ -253,7 +253,7 @@ int __init of_setup_earlycon(const struct earlycon_id *match,
 	bool big_endian;
 	u64 addr;
 
-	if (early_con.flags & CON_ENABLED)
+	if (console_is_registered(&early_con))
 		return -EALREADY;
 
 	spin_lock_init(&port->lock);
-- 
2.30.2