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Message-ID: <06e40c1c-d8e3-b1c1-276a-e32e579371b8@kernel.org>
Date:   Mon, 4 Jul 2022 08:56:04 +0200
From:   Jiri Slaby <jirislaby@...nel.org>
To:     Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
        linux-serial@...r.kernel.org, Greg KH <gregkh@...uxfoundation.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Vladimir Zapolskiy <vz@...ia.com>,
        Russell King <linux@...linux.org.uk>,
        Richard Genoud <richard.genoud@...il.com>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-stm32@...md-mailman.stormreply.com
Cc:     Lukas Wunner <lukas@...ner.de>,
        Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
        Lino Sanfilippo <LinoSanfilippo@....de>
Subject: Re: [PATCH v9 4/6] serial: take termios_rwsem for ->rs485_config() &
 pass termios as param

On 04. 07. 22, 8:51, Jiri Slaby wrote:
> Anyway, I'm not sure I buy the above. Why is termios_rwsem needed to 
> alter ADDRB?

Nevermind, reading patch 5/6 gives a clue.

-- 
js
suse labs

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