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Message-ID: <Y9jX81zJTM9xzDo2@unreal>
Date: Tue, 31 Jan 2023 10:57:23 +0200
From: Leon Romanovsky <leon@...nel.org>
To: Neeraj Sanjay Kale <neeraj.sanjaykale@....com>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
pabeni@...hat.com, robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org, marcel@...tmann.org,
johan.hedberg@...il.com, luiz.dentz@...il.com,
gregkh@...uxfoundation.org, jirislaby@...nel.org,
alok.a.tiwari@...cle.com, hdanton@...a.com,
ilpo.jarvinen@...ux.intel.com, netdev@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-bluetooth@...r.kernel.org, linux-serial@...r.kernel.org,
amitkumar.karwar@....com, rohit.fule@....com, sherry.sun@....com
Subject: Re: [PATCH v2 1/3] serdev: Add method to assert break
On Mon, Jan 30, 2023 at 11:35:02PM +0530, Neeraj Sanjay Kale wrote:
> Adds serdev_device_break_ctl() and an implementation for ttyport.
>
> Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@....com>
> ---
> drivers/tty/serdev/core.c | 11 +++++++++++
> drivers/tty/serdev/serdev-ttyport.c | 12 ++++++++++++
> include/linux/serdev.h | 6 ++++++
> 3 files changed, 29 insertions(+)
<...>
> +{
> + struct serport *serport = serdev_controller_get_drvdata(ctrl);
> + struct tty_struct *tty = serport->tty;
> +
> + if (!tty->ops->break_ctl)
> + return -ENOTSUPP;
Documentation/dev-tools/checkpatch.rst
429 **ENOTSUPP**
430 ENOTSUPP is not a standard error code and should be avoided in new patches.
431 EOPNOTSUPP should be used instead.
432
433 See: https://lore.kernel.org/netdev/20200510182252.GA411829@lunn.ch/
Thanks
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