linux-kernel - RE: RE: [PATCH 1/2] printk: nbcon: move locked_port flag to struct uart

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Message-ID: <BN9PR11MB53704D5616C125B321120F6EEC7A2@BN9PR11MB5370.namprd11.prod.outlook.com>
Date: Thu, 25 Jan 2024 23:20:17 +0000
From: "Chang, Junxiao" <junxiao.chang@...el.com>
To: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
CC: John Ogness <john.ogness@...utronix.de>, "tglx@...utronix.de"
	<tglx@...utronix.de>, "rostedt@...dmis.org" <rostedt@...dmis.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "Li, Hao3"
	<hao3.li@...el.com>, "Li, Lili" <lili.li@...el.com>, "Gao, Jianfeng"
	<jianfeng.gao@...el.com>, "linux-rt-users@...r.kernel.org"
	<linux-rt-users@...r.kernel.org>
Subject: RE: RE: [PATCH 1/2] printk: nbcon: move locked_port flag to struct
 uart_port

> >  That is, all 8250 serial devices' console pointer are same, they point to univ8250_console.

> Okay, So that I see this and the unbalanced acquire/ release part with the attached patch. I leave it to John… Btw. You don't see kernel log output on ttyS4 + ttyS5, right? Just a login prompt.
>
> Sebastian

Right. At that time, only ttyS0 is console and nbcon.

Thanks,
Junxiao