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Date: Fri, 03 May 2024 10:09:08 +0200
Message-Id: <D0ZUU7BGDGRN.1NJ3GVVIBL3P1@bootlin.com>
Cc: "Sergey Senozhatsky" <senozhatsky@chromium.org>, "Steven Rostedt"
 <rostedt@goodmis.org>, "Thomas Gleixner" <tglx@linutronix.de>,
 <linux-kernel@vger.kernel.org>, "Greg Kroah-Hartman"
 <gregkh@linuxfoundation.org>, "Jiri Slaby" <jirislaby@kernel.org>, "Russell
 King" <linux@armlinux.org.uk>, "Tony Lindgren" <tony@atomide.com>, "Andy
 Shevchenko" <andriy.shevchenko@linux.intel.com>,
 =?utf-8?q?Ilpo_J=C3=A4rvinen?= <ilpo.jarvinen@linux.intel.com>,
 =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>, "Linus
 Walleij" <linus.walleij@linaro.org>, "Hongyu Xie" <xiehongyu1@kylinos.cn>,
 "Christophe JAILLET" <christophe.jaillet@wanadoo.fr>, "Arnd Bergmann"
 <arnd@arndb.de>, "Lino Sanfilippo" <l.sanfilippo@kunbus.com>,
 <linux-serial@vger.kernel.org>
To: "John Ogness" <john.ogness@linutronix.de>, "Petr Mladek"
 <pmladek@suse.com>
From: =?utf-8?q?Th=C3=A9o_Lebrun?= <theo.lebrun@bootlin.com>
Subject: Re: [PATCH printk v5 09/30] serial: core: Introduce wrapper to set
 @uart_port->cons
References: <20240502213839.376636-1-john.ogness@linutronix.de>
 <20240502213839.376636-10-john.ogness@linutronix.de>
In-Reply-To: <20240502213839.376636-10-john.ogness@linutronix.de>

Hello,

On Thu May 2, 2024 at 11:38 PM CEST, John Ogness wrote:
> Introduce uart_port_set_cons() as a wrapper to set @cons of a
> uart_port. The wrapper sets @cons under the port lock in order
> to prevent @cons from disappearing while another context is
> holding the port lock. This is necessary for a follow-up
> commit relating to the port lock wrappers, which rely on @cons
> not changing between lock and unlock.
>
> Signed-off-by: John Ogness <john.ogness@linutronix.de>

Tested series on Mobileye EyeQ5, a MIPS64 platform that uses PL011.

Tested-by: Th=C3=A9o Lebrun <theo.lebrun@bootlin.com> # EyeQ5, AMBA-PL011

Thanks,

--
Th=C3=A9o Lebrun, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com