From: Daniel Scally <djrscally@gmail.com>
To: Andy Shevchenko <andy.shevchenko@gmail.com>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
Linux Media Mailing List <linux-media@vger.kernel.org>,
devel@acpica.org, "Rafael J. Wysocki" <rjw@rjwysocki.net>,
Len Brown <lenb@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Yong Zhi <yong.zhi@intel.com>,
Sakari Ailus <sakari.ailus@linux.intel.com>,
Bingbu Cao <bingbu.cao@intel.com>,
Tian Shu Qiu <tian.shu.qiu@intel.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Robert Moore <robert.moore@intel.com>,
Erik Kaneda <erik.kaneda@intel.com>,
Petr Mladek <pmladek@suse.com>,
Steven Rostedt <rostedt@goodmis.org>,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>,
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>,
Jacopo Mondi <jacopo+renesas@jmondi.org>,
kieran.bingham+renesas@ideasonboard.com,
Hans Verkuil <hverkuil-cisco@xs4all.nl>,
Marco Felsch <m.felsch@pengutronix.de>,
niklas.soderlund+renesas@ragnatech.se,
Steve Longerbeam <slongerbeam@gmail.com>,
"Krogerus, Heikki" <heikki.krogerus@linux.intel.com>,
Linus Walleij <linus.walleij@linaro.org>
Subject: Re: [PATCH v3 07/14] software_node: Add support for fwnode_graph*() family of functions
Date: Thu, 24 Dec 2020 14:21:15 +0000 [thread overview]
Message-ID: <d47e0ccf-9def-e9c9-fdfb-390ad5d2ee5e@gmail.com> (raw)
In-Reply-To: <CAHp75Ve6YHm-tdqFPvOhfJiT=uRK_dpKY3mnhQd6Mg3KkSuKqA@mail.gmail.com>
Hi Andy, Laurent
> On Thu, Dec 24, 2020 at 2:55 PM Laurent Pinchart
> <laurent.pinchart@ideasonboard.com> wrote:
>> On Thu, Dec 24, 2020 at 02:24:12PM +0200, Andy Shevchenko wrote:
>>> On Thu, Dec 24, 2020 at 3:14 AM Daniel Scally wrote:
>
> ...
>
>>>> + if (!strncmp(to_swnode(port)->node->name, "port@",
>>>
>>> You may use here corresponding _FMT macro.
>>>
>>>> + FWNODE_GRAPH_PORT_NAME_PREFIX_LEN))
>>>> + return port;
>
> ...
>
>>>> + /* Ports have naming style "port@n", we need to select the n */
>>>
>>>> + ret = kstrtou32(swnode->parent->node->name + FWNODE_GRAPH_PORT_NAME_PREFIX_LEN,
>>>
>>> Maybe a temporary variable?
>>>
>>> unsigned int prefix_len = FWNODE_GRAPH_PORT_NAME_PREFIX_LEN;
>>> ...
>>> ret = kstrtou32(swnode->parent->node->name + prefix_len,
>>
>> Honestly I'm wondering if those macros don't hinder readability. I'd
>> rather write
>>
>> + strlen("port@")
>
> Works for me, since the compiler optimizes this away to be a plain constant.
Well, how about instead of the LEN macro, we have:
#define FWNODE_GRAPH_PORT_NAME_PREFIX "port@"
#define FWNODE_GRAPH_PORT_NAME_FMT FWNODE_GRAPH_PORT_NAME_PREFIX "%u"
And then it's still maintainable in one place but (I think) slightly
less clunky, since we can do strlen(FWNODE_GRAPH_PORT_NAME_PREFIX)
Or we can do strlen("port@"), I'm good either way :)
next prev parent reply other threads:[~2020-12-24 14:22 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-24 1:08 [PATCH v3 00/14] Add functionality to ipu3-cio2 driver allowing software_node connections to sensors on platforms designed for Windows Daniel Scally
2020-12-24 1:08 ` [PATCH v3 01/14] software_node: Fix refcounts in software_node_get_next_child() Daniel Scally
2020-12-24 1:08 ` [PATCH v3 02/14] property: Return true in fwnode_device_is_available for NULL ops Daniel Scally
2020-12-24 1:08 ` [PATCH v3 03/14] property: Call fwnode_graph_get_endpoint_by_id() for fwnode->secondary Daniel Scally
2020-12-24 1:08 ` [PATCH v3 04/14] software_node: Enforce parent before child ordering of nodes arrays Daniel Scally
2020-12-24 1:08 ` [PATCH v3 05/14] software_node: unregister software_nodes in reverse order Daniel Scally
2020-12-24 12:13 ` Andy Shevchenko
2020-12-24 14:00 ` Daniel Scally
2020-12-24 14:12 ` Andy Shevchenko
2020-12-24 14:14 ` Daniel Scally
2020-12-24 18:36 ` David Laight
2020-12-28 10:15 ` Andy Shevchenko
2020-12-28 21:17 ` Daniel Scally
2020-12-28 16:34 ` Sakari Ailus
2020-12-28 17:47 ` Andy Shevchenko
2020-12-24 1:08 ` [PATCH v3 06/14] include: fwnode.h: Define format macros for ports and endpoints Daniel Scally
2020-12-24 12:17 ` Andy Shevchenko
2020-12-24 12:41 ` Laurent Pinchart
2020-12-28 16:30 ` Sakari Ailus
2020-12-28 17:11 ` Sakari Ailus
2020-12-28 21:36 ` Daniel Scally
2020-12-24 1:09 ` [PATCH v3 07/14] software_node: Add support for fwnode_graph*() family of functions Daniel Scally
2020-12-24 12:24 ` Andy Shevchenko
2020-12-24 12:55 ` Laurent Pinchart
2020-12-24 13:03 ` Andy Shevchenko
2020-12-24 14:21 ` Daniel Scally [this message]
2020-12-28 16:41 ` Sakari Ailus
2020-12-28 21:37 ` Daniel Scally
2020-12-26 23:47 ` Daniel Scally
2020-12-24 12:53 ` Laurent Pinchart
2020-12-24 14:24 ` Daniel Scally
2020-12-24 1:09 ` [PATCH v3 08/14] lib/test_printf.c: Use helper function to unwind array of software_nodes Daniel Scally
2020-12-24 1:09 ` [PATCH v3 09/14] ipu3-cio2: Add T: entry to MAINTAINERS Daniel Scally
2020-12-24 1:09 ` [PATCH v3 10/14] ipu3-cio2: Rename ipu3-cio2.c Daniel Scally
2020-12-24 1:09 ` [PATCH v3 11/14] media: v4l2-core: v4l2-async: Check sd->fwnode->secondary in match_fwnode() Daniel Scally
2020-12-24 1:09 ` [PATCH v3 12/14] acpi: Add acpi_dev_get_next_match_dev() and helper macro Daniel Scally
2020-12-24 1:09 ` [PATCH v3 13/14] include: media: v4l2-fwnode: Include v4l2_fwnode_bus_type Daniel Scally
2020-12-24 12:32 ` Andy Shevchenko
2020-12-26 23:14 ` Daniel Scally
2020-12-24 12:58 ` Laurent Pinchart
2020-12-24 1:09 ` [PATCH v3 14/14] ipu3-cio2: Add cio2-bridge to ipu3-cio2 driver Daniel Scally
2020-12-24 12:54 ` Andy Shevchenko
2020-12-26 23:23 ` Daniel Scally
2020-12-28 17:05 ` Sakari Ailus
2020-12-28 22:37 ` Daniel Scally
2020-12-28 22:55 ` Andy Shevchenko
2020-12-28 22:56 ` Andy Shevchenko
2020-12-28 23:07 ` Laurent Pinchart
2020-12-28 23:54 ` Andy Shevchenko
2020-12-29 0:07 ` Laurent Pinchart
2020-12-30 20:47 ` Andy Shevchenko
2020-12-28 23:30 ` Daniel Scally
2020-12-28 23:47 ` Andy Shevchenko
2021-01-02 17:07 ` Sakari Ailus
2021-01-02 17:12 ` Daniel Scally
2021-01-02 17:21 ` Sakari Ailus
2021-01-02 17:24 ` Sakari Ailus
2021-01-02 21:23 ` Daniel Scally
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