From: Luca Ceresoli <luca.ceresoli@bootlin•com>
To: Rob Herring <robh@kernel•org>
Cc: "Richard Leitner" <richard.leitner@linux•dev>,
"Daniel Lezcano" <daniel.lezcano@linaro•org>,
linux-pwm@vger•kernel.org, "Tony Lindgren" <tony@atomide•com>,
"Linus Walleij" <linus.walleij@linaro•org>,
llvm@lists•linux.dev,
"Nicolas Ferre" <nicolas.ferre@microchip•com>,
"Uwe Kleine-König" <ukleinek@kernel•org>,
"Krzysztof Kozlowski" <krzk@kernel•org>,
"Thomas Petazzoni" <thomas.petazzoni@bootlin•com>,
linux-riscv@lists•infradead.org,
"Jiri Slaby" <jirislaby@kernel•org>,
linux-clk@vger•kernel.org, linux-samsung-soc@vger•kernel.org,
"Florian Fainelli" <florian.fainelli@broadcom•com>,
"Samuel Holland" <samuel@sholland•org>,
"Emilio López" <emilio@elopez•com.ar>,
"Bartosz Golaszewski" <brgl@bgdev•pl>,
"Lee Jones" <lee@kernel•org>,
"Jernej Skrabec" <jernej.skrabec@gmail•com>,
linux-iio@vger•kernel.org, "Chen-Yu Tsai" <wens@csie•org>,
"Broadcom internal kernel review list"
<bcm-kernel-feedback-list@broadcom•com>,
linux-serial@vger•kernel.org, "Miguel Ojeda" <ojeda@kernel•org>,
"Michael Turquette" <mturquette@baylibre•com>,
devicetree@vger•kernel.org,
"Peng Fan (OSS)" <peng.fan@oss•nxp.com>,
linux-arm-msm@vger•kernel.org, linuxppc-dev@lists•ozlabs.org,
"Nicholas Piggin" <npiggin@gmail•com>,
"Nathan Chancellor" <nathan@kernel•org>,
"Naveen N. Rao" <naveen.n.rao@linux•ibm.com>,
"Mark Brown" <broonie@kernel•org>,
linux-sound@vger•kernel.org,
"Thomas Gleixner" <tglx@linutronix•de>,
linux-omap@vger•kernel.org, linux-arm-kernel@lists•infradead.org,
"Saravana Kannan" <saravanak@google•com>,
linux-gpio@vger•kernel.org, "Stephen Boyd" <sboyd@kernel•org>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation•org>,
"Bjorn Andersson" <andersson@kernel•org>,
linux-usb@vger•kernel.org, "Liam Girdwood" <lgirdwood@gmail•com>,
linux-kernel@vger•kernel.org,
"Damien Le Moal" <dlemoal@kernel•org>,
"Pengutronix Kernel Team" <kernel@pengutronix•de>,
patches@opensource•cirrus.com,
"Christophe Leroy" <christophe.leroy@csgroup•eu>,
"Shawn Guo" <shawnguo@kernel•org>,
linux-sunxi@lists•linux.dev,
"Jonathan Cameron" <jic23@kernel•org>
Subject: Re: [PATCH 00/20] Simplify of_property_for_each_u32()
Date: Thu, 4 Jul 2024 23:31:55 +0200 [thread overview]
Message-ID: <20240704233155.61b5323c@booty> (raw)
In-Reply-To: <20240703180742.GB1245093-robh@kernel.org>
Hello Rob,
On Wed, 3 Jul 2024 12:07:42 -0600
Rob Herring <robh@kernel•org> wrote:
> On Wed, Jul 03, 2024 at 12:36:44PM +0200, Luca Ceresoli wrote:
> > [Note: to reduce the noise I have trimmed the get_maintainers list
> > manually. Should you want to be removed, or someone else added, to future
> > versions, just tell me. Sorry for the noise.]
> >
> > This series aims at simplifying of_property_for_each_u32() as well as
> > making it more difficult to misuse it in the future.
> >
> > The long-term goal is changing this pattern:
> >
> > struct property *prop;
> > const __be32 *p;
> > u32 val;
> >
> > of_property_for_each_u32(np, "xyz", prop, p, val) { ... }
> >
> > to this:
> >
> > u32 val;
> >
> > of_property_for_each_u32(np, "xyz", val) { ... }
> >
> > So, removing the 3rd and 4th arguments which are typically meant to be
> > internal. Those two parameters used to be unavoidable until the kernel
> > moved to building with the C11 standard unconditionally. Since then, it is
> > now possible to get rid of them. However a few users of
> > of_property_for_each_u32() do actually use those arguments, which
> > complicates the transition. For this reason this series does the following:
> >
> > * Add of_property_for_each_u32_new(), which does not have those two
> > arguments (patch 1)
> > * Convert _almost_ every usage to of_property_for_each_u32_new()
> > * Rename of_property_for_each_u32() to of_property_for_each_u32_old() and
> > deprecate it, as a incentive to code not (yet) in mainline to upgrade
> > to the *_new() version (last patch)
>
> I don't really see the point of introducing the _old variant. Let's get
> this done in one step.
>
> >
> > The plan for the next series is to additionally:
> >
> > * Convert the few remaining of_property_for_each_u32_old() instantes to
> > of_property_for_each_u32_new()
> > * Remove of_property_for_each_u32_old()
> > * Rename of_property_for_each_u32_new() to of_property_for_each_u32()
>
> Honestly, I think there's few enough users we could just convert the
> whole thing in one patch. It's all got to go thru 1 tree anyways. If
> there's new cases in -next, then I'd be happy to send it to Linus at the
> end of the merge window.
Sure, make sense. I'll need to convert the few remaining users, then
I'm sending a squashed v2.
Luca
--
Luca Ceresoli, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
prev parent reply other threads:[~2024-07-04 21:33 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-03 10:36 [PATCH 00/20] Simplify of_property_for_each_u32() Luca Ceresoli
2024-07-03 10:36 ` [PATCH 01/20] of: add of_property_for_each_u32_new() Luca Ceresoli
2024-07-03 10:36 ` [PATCH 02/20] clk: convert to of_property_for_each_u32_new() Luca Ceresoli
2024-07-03 10:36 ` [PATCH 03/20] clk: qcom: " Luca Ceresoli
2024-07-03 10:36 ` [PATCH 04/20] clk: sunxi: clk-simple-gates: " Luca Ceresoli
2024-07-03 12:21 ` Andre Przywara
2024-07-03 10:36 ` [PATCH 05/20] clk: sunxi: clk-sun8i-bus-gates: " Luca Ceresoli
2024-07-03 12:19 ` Andre Przywara
2024-07-03 10:36 ` [PATCH 06/20] clocksource/drivers/samsung_pwm: " Luca Ceresoli
2024-07-03 10:36 ` [PATCH 07/20] bus: ti-sysc: " Luca Ceresoli
2024-07-03 10:36 ` [PATCH 08/20] lk: clk-conf: " Luca Ceresoli
2024-07-03 10:36 ` [PATCH 09/20] gpio: brcmstb: " Luca Ceresoli
2024-07-03 11:33 ` Bartosz Golaszewski
2024-07-03 10:36 ` [PATCH 10/20] pinctrl: s32cc: " Luca Ceresoli
2024-07-03 10:36 ` [PATCH 11/20] irqchip/atmel-aic: " Luca Ceresoli
2024-07-03 13:09 ` Nicolas Ferre
2024-07-03 10:36 ` [PATCH 12/20] iio: adc: ti_am335x_adc: " Luca Ceresoli
2024-07-03 15:34 ` Jonathan Cameron
2024-07-03 10:36 ` [PATCH 13/20] pwm: samsung: " Luca Ceresoli
2024-07-03 21:23 ` Uwe Kleine-König
2024-07-03 10:36 ` [PATCH 14/20] tty: sysrq: " Luca Ceresoli
2024-07-03 10:36 ` [PATCH 15/20] usb: usb251xb: " Luca Ceresoli
2024-07-08 7:45 ` Richard Leitner
2024-07-03 10:37 ` [PATCH 16/20] mfd: ti_am335x_tscadc: " Luca Ceresoli
2024-07-03 10:37 ` [PATCH 17/20] ASoC: arizona: " Luca Ceresoli
2024-07-03 11:31 ` Richard Fitzgerald
2024-07-03 12:18 ` Mark Brown
2024-07-03 10:37 ` [PATCH 18/20] powerpc/xive: " Luca Ceresoli
2024-07-03 10:37 ` [PATCH 19/20] " Luca Ceresoli
2024-07-03 11:36 ` Michael Ellerman
2024-07-03 10:37 ` [PATCH 20/20] of: deprecate and rename of_property_for_each_u32() Luca Ceresoli
2024-07-03 18:01 ` Rob Herring
2024-07-04 21:33 ` Luca Ceresoli
2024-07-03 18:07 ` [PATCH 00/20] Simplify of_property_for_each_u32() Rob Herring
2024-07-04 21:31 ` Luca Ceresoli [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240704233155.61b5323c@booty \
--to=luca.ceresoli@bootlin$(echo .)com \
--cc=andersson@kernel$(echo .)org \
--cc=bcm-kernel-feedback-list@broadcom$(echo .)com \
--cc=brgl@bgdev$(echo .)pl \
--cc=broonie@kernel$(echo .)org \
--cc=christophe.leroy@csgroup$(echo .)eu \
--cc=daniel.lezcano@linaro$(echo .)org \
--cc=devicetree@vger$(echo .)kernel.org \
--cc=dlemoal@kernel$(echo .)org \
--cc=emilio@elopez$(echo .)com.ar \
--cc=florian.fainelli@broadcom$(echo .)com \
--cc=gregkh@linuxfoundation$(echo .)org \
--cc=jernej.skrabec@gmail$(echo .)com \
--cc=jic23@kernel$(echo .)org \
--cc=jirislaby@kernel$(echo .)org \
--cc=kernel@pengutronix$(echo .)de \
--cc=krzk@kernel$(echo .)org \
--cc=lee@kernel$(echo .)org \
--cc=lgirdwood@gmail$(echo .)com \
--cc=linus.walleij@linaro$(echo .)org \
--cc=linux-arm-kernel@lists$(echo .)infradead.org \
--cc=linux-arm-msm@vger$(echo .)kernel.org \
--cc=linux-clk@vger$(echo .)kernel.org \
--cc=linux-gpio@vger$(echo .)kernel.org \
--cc=linux-iio@vger$(echo .)kernel.org \
--cc=linux-kernel@vger$(echo .)kernel.org \
--cc=linux-omap@vger$(echo .)kernel.org \
--cc=linux-pwm@vger$(echo .)kernel.org \
--cc=linux-riscv@lists$(echo .)infradead.org \
--cc=linux-samsung-soc@vger$(echo .)kernel.org \
--cc=linux-serial@vger$(echo .)kernel.org \
--cc=linux-sound@vger$(echo .)kernel.org \
--cc=linux-sunxi@lists$(echo .)linux.dev \
--cc=linux-usb@vger$(echo .)kernel.org \
--cc=linuxppc-dev@lists$(echo .)ozlabs.org \
--cc=llvm@lists$(echo .)linux.dev \
--cc=mturquette@baylibre$(echo .)com \
--cc=nathan@kernel$(echo .)org \
--cc=naveen.n.rao@linux$(echo .)ibm.com \
--cc=nicolas.ferre@microchip$(echo .)com \
--cc=npiggin@gmail$(echo .)com \
--cc=ojeda@kernel$(echo .)org \
--cc=patches@opensource$(echo .)cirrus.com \
--cc=peng.fan@oss$(echo .)nxp.com \
--cc=richard.leitner@linux$(echo .)dev \
--cc=robh@kernel$(echo .)org \
--cc=samuel@sholland$(echo .)org \
--cc=saravanak@google$(echo .)com \
--cc=sboyd@kernel$(echo .)org \
--cc=shawnguo@kernel$(echo .)org \
--cc=tglx@linutronix$(echo .)de \
--cc=thomas.petazzoni@bootlin$(echo .)com \
--cc=tony@atomide$(echo .)com \
--cc=ukleinek@kernel$(echo .)org \
--cc=wens@csie$(echo .)org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox