From: "Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
To: Christoph Fritz <christoph.fritz@hexdev.de>
Cc: Jiri Slaby <jirislaby@kernel.org>,
Simon Horman <horms@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Marc Kleine-Budde <mkl@pengutronix.de>,
Oliver Hartkopp <socketcan@hartkopp.net>,
Vincent Mailhol <mailhol.vincent@wanadoo.fr>,
"David S . Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>,
Paolo Abeni <pabeni@redhat.com>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Jiri Kosina <jikos@kernel.org>,
Benjamin Tissoires <bentiss@kernel.org>,
Sebastian Reichel <sre@kernel.org>,
Linus Walleij <linus.walleij@linaro.org>,
Andreas Lauser <andreas.lauser@mercedes-benz.com>,
Jonathan Corbet <corbet@lwn.net>,
Pavel Pisa <pisa@cmp.felk.cvut.cz>,
linux-can@vger.kernel.org, Netdev <netdev@vger.kernel.org>,
devicetree@vger.kernel.org, linux-input@vger.kernel.org,
linux-serial <linux-serial@vger.kernel.org>
Subject: Re: [PATCH v4 04/11] tty: serdev: Add method to enable break flags
Date: Mon, 13 May 2024 15:30:31 +0300 (EEST) [thread overview]
Message-ID: <d5406164-0a65-cb97-3e23-8b4ae1b79905@linux.intel.com> (raw)
In-Reply-To: <3070ec70b2477560f205cc4c34dd84b320831365.camel@hexdev.de>
[-- Attachment #1: Type: text/plain, Size: 1188 bytes --]
On Sun, 12 May 2024, Christoph Fritz wrote:
> On Fri, 2024-05-10 at 17:21 +0300, Ilpo Järvinen wrote:
> > On Thu, 9 May 2024, Christoph Fritz wrote:
> ...
> > > diff --git a/drivers/tty/serdev/core.c b/drivers/tty/serdev/core.c
> > > index 613cb356b918d..23a1e76cb553b 100644
> > > --- a/drivers/tty/serdev/core.c
> > > +++ b/drivers/tty/serdev/core.c
> > > @@ -339,6 +339,17 @@ unsigned int serdev_device_set_baudrate(struct serdev_device *serdev, unsigned i
> > > }
> > > EXPORT_SYMBOL_GPL(serdev_device_set_baudrate);
> > >
> > > +void serdev_device_set_break_detection(struct serdev_device *serdev, bool enable)
> > > +{
> > > + struct serdev_controller *ctrl = serdev->ctrl;
> > > +
> > > + if (!ctrl || !ctrl->ops->set_break_detection)
> > > + return;
> >
> > Why you need to test for !ctrl?
>
> In our case we don't, it's an extra check like all the other functions
> here:
>
> https://elixir.bootlin.com/linux/v6.9-rc7/source/drivers/tty/serdev/core.c#L330
Okay. It might be I just don't understand all the structs in serdev well
enough to understand when ctrl actually end ups being NULL so I don't
object leaving it as is.
--
i.
next prev parent reply other threads:[~2024-05-13 12:33 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-09 17:17 [PATCH v4 00/11] LIN Bus support for Linux Christoph Fritz
2024-05-09 17:17 ` [PATCH v4 01/11] can: Add LIN bus as CAN abstraction Christoph Fritz
2024-05-10 13:23 ` Ilpo Järvinen
2024-05-13 9:52 ` Simon Horman
2024-05-09 17:17 ` [PATCH v4 02/11] HID: hexLIN: Add support for USB LIN adapter Christoph Fritz
2024-05-10 13:46 ` Ilpo Järvinen
2024-05-11 8:14 ` Christoph Fritz
2024-05-13 12:27 ` Ilpo Järvinen
2024-05-13 5:26 ` Jiri Slaby
2024-05-09 17:17 ` [PATCH v4 03/11] treewide, serdev: add flags argument to receive_buf() Christoph Fritz
2024-05-10 14:11 ` Ilpo Järvinen
2024-05-09 17:17 ` [PATCH v4 04/11] tty: serdev: Add method to enable break flags Christoph Fritz
2024-05-10 14:21 ` Ilpo Järvinen
2024-05-12 13:08 ` Christoph Fritz
2024-05-13 12:30 ` Ilpo Järvinen [this message]
2024-05-09 17:17 ` [PATCH v4 05/11] dt-bindings: vendor-prefixes: Add hexDEV Christoph Fritz
2024-05-09 17:17 ` [PATCH v4 06/11] dt-bindings: net/can: Add serial LIN adapter hexLINSER Christoph Fritz
2024-05-09 18:09 ` Conor Dooley
2024-05-09 17:17 ` [PATCH v4 07/11] can: Add support for hexDEV " Christoph Fritz
2024-05-10 14:32 ` Ilpo Järvinen
2024-05-09 17:17 ` [PATCH v4 08/11] can: bcm: Add LIN answer offloading for responder mode Christoph Fritz
2024-05-09 17:17 ` [PATCH v4 09/11] can: lin: Handle rx offload config frames Christoph Fritz
2024-05-10 14:36 ` Ilpo Järvinen
2024-05-09 17:17 ` [PATCH v4 10/11] can: lin: Support setting LIN mode Christoph Fritz
2024-05-10 14:39 ` Ilpo Järvinen
2024-05-09 17:17 ` [PATCH v4 11/11] HID: hexLIN: Implement ability to update lin mode Christoph Fritz
2024-05-18 18:29 ` [PATCH v4 00/11] LIN Bus support for Linux Christoph Fritz
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