linux-kernel - [PATCH 00/10] Stop NULLifying match pointer in of_match

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Message-Id: <20191004214334.149976-1-swboyd@chromium.org>
Date:   Fri,  4 Oct 2019 14:43:24 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     linux-kernel@...r.kernel.org
Cc:     Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        alsa-devel@...a-project.org, Andrew Lunn <andrew@...n.ch>,
        Arnd Bergmann <arnd@...db.de>, Dan Murphy <dmurphy@...com>,
        "David S. Miller" <davem@...emloft.net>,
        Frank Rowand <frowand.list@...il.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Guenter Roeck <linux@...ck-us.net>,
        Jacek Anaszewski <jacek.anaszewski@...il.com>,
        Jacopo Mondi <jacopo@...ndi.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Jason Cooper <jason@...edaemon.net>,
        Jean Delvare <jdelvare@...e.com>, Jiri Slaby <jslaby@...e.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        linux-hwmon@...r.kernel.org, linux-leds@...r.kernel.org,
        linux-media@...r.kernel.org, linux-omap@...r.kernel.org,
        linux-renesas-soc@...r.kernel.org, linux-rtc@...r.kernel.org,
        linux-serial@...r.kernel.org, linux-spi@...r.kernel.org,
        linux-usb@...r.kernel.org, Mark Brown <broonie@...nel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Paul Cercueil <paul@...pouillou.net>,
        Pavel Machek <pavel@....cz>,
        Richard Leitner <richard.leitner@...data.com>,
        Riku Voipio <riku.voipio@....fi>,
        Rob Herring <robh+dt@...nel.org>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Takashi Iwai <tiwai@...e.com>
Subject: [PATCH 00/10] Stop NULLifying match pointer in of_match_device()

of_match_device() uses of_match_ptr() to make the match table argument
NULL via the pre-processor when CONFIG_OF=n. This makes life harder for
compilers who think that match tables are never used and warn about
unused variables when CONFIG_OF=n. This series changes various callers
to use of_device_get_match_data() instead, which doesn't have this
problem, and removes the of_match_ptr() usage from of_match_device() so
that the compiler can stop complaining about unused variables. It will
do dead code elimination instead and remove the match table if it isn't
actually used.

Huge Cc list!

Cc: Alessandro Zummo <a.zummo@...ertech.it>
Cc: Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc: Alexandre Torgue <alexandre.torgue@...com>
Cc: <alsa-devel@...a-project.org>
Cc: Andrew Lunn <andrew@...n.ch>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: Dan Murphy <dmurphy@...com>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: Frank Rowand <frowand.list@...il.com>
Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Gregory Clement <gregory.clement@...tlin.com>
Cc: Grygorii Strashko <grygorii.strashko@...com>
Cc: Guenter Roeck <linux@...ck-us.net>
Cc: Jacek Anaszewski <jacek.anaszewski@...il.com>
Cc: Jacopo Mondi <jacopo@...ndi.org>
Cc: Jaroslav Kysela <perex@...ex.cz>
Cc: Jason Cooper <jason@...edaemon.net>
Cc: Jean Delvare <jdelvare@...e.com>
Cc: Jiri Slaby <jslaby@...e.com>
Cc: Liam Girdwood <lgirdwood@...il.com>
Cc: <linux-hwmon@...r.kernel.org>
Cc: <linux-leds@...r.kernel.org>
Cc: <linux-media@...r.kernel.org>
Cc: <linux-omap@...r.kernel.org>
Cc: <linux-renesas-soc@...r.kernel.org>
Cc: <linux-rtc@...r.kernel.org>
Cc: <linux-serial@...r.kernel.org>
Cc: <linux-spi@...r.kernel.org>
Cc: <linux-usb@...r.kernel.org>
Cc: Mark Brown <broonie@...nel.org>
Cc: Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: Maxime Coquelin <mcoquelin.stm32@...il.com>
Cc: Paul Cercueil <paul@...pouillou.net>
Cc: Pavel Machek <pavel@....cz>
Cc: Richard Leitner <richard.leitner@...data.com>
Cc: Riku Voipio <riku.voipio@....fi>
Cc: Rob Herring <robh+dt@...nel.org>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Cc: Takashi Iwai <tiwai@...e.com>

Stephen Boyd (10):
  leds: pca953x: Use of_device_get_match_data()
  media: renesas-ceu: Use of_device_get_match_data()
  rtc: armada38x: Use of_device_get_match_data()
  drivers: net: davinci_mdio: Use of_device_get_match_data()
  serial: stm32: Use of_device_get_match_data()
  usb: usb251xb: Use of_device_get_match_data()
  ASoC: jz4740: Use of_device_get_match_data()
  spi: gpio: Look for a device node instead of match
  hwmon: (lm70) Avoid undefined reference to match table
  of/device: Don't NULLify match table in of_match_device() with
    CONFIG_OF=n

 drivers/hwmon/lm70.c                   |  2 +-
 drivers/leds/leds-pca9532.c            | 14 +----
 drivers/media/platform/renesas-ceu.c   |  2 +-
 drivers/net/ethernet/ti/davinci_mdio.c | 12 ++---
 drivers/rtc/rtc-armada38x.c            | 10 ++--
 drivers/spi/spi-gpio.c                 |  5 +-
 drivers/tty/serial/stm32-usart.c       | 71 ++++++++++++--------------
 drivers/tty/serial/stm32-usart.h       |  2 +-
 drivers/usb/misc/usb251xb.c            | 12 ++---
 include/linux/of_device.h              |  4 +-
 sound/soc/jz4740/jz4740-i2s.c          |  5 +-
 11 files changed, 55 insertions(+), 84 deletions(-)


base-commit: 54ecb8f7028c5eb3d740bb82b0f1d90f2df63c5c
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