From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Boyd Subject: [PATCH 00/10] Stop NULLifying match pointer in of_match_device() Date: Fri, 4 Oct 2019 14:43:24 -0700 Message-ID: <20191004214334.149976-1-swboyd@chromium.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Cc: Alessandro Zummo , Alexandre Belloni , Alexandre Torgue , alsa-devel@alsa-project.org, Andrew Lunn , Arnd Bergmann , Dan Murphy , "David S. Miller" , Frank Rowand , Geert Uytterhoeven , Greg Kroah-Hartman , Gregory Clement , Grygorii Strashko , Guenter Roeck , Jacek Anaszewski , Jacopo Mondi , Jaroslav Kysela , Jason Cooper , Jean Delvare , Jiri Slaby Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-spi.vger.kernel.org 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 Cc: Alexandre Belloni Cc: Alexandre Torgue Cc: Cc: Andrew Lunn Cc: Arnd Bergmann Cc: Dan Murphy Cc: "David S. Miller" Cc: Frank Rowand Cc: Geert Uytterhoeven Cc: Greg Kroah-Hartman Cc: Gregory Clement Cc: Grygorii Strashko Cc: Guenter Roeck Cc: Jacek Anaszewski Cc: Jacopo Mondi Cc: Jaroslav Kysela Cc: Jason Cooper Cc: Jean Delvare Cc: Jiri Slaby Cc: Liam Girdwood Cc: Cc: Cc: Cc: Cc: Cc: Cc: Cc: Cc: Cc: Mark Brown Cc: Mauro Carvalho Chehab Cc: Maxime Coquelin Cc: Paul Cercueil Cc: Pavel Machek Cc: Richard Leitner Cc: Riku Voipio Cc: Rob Herring Cc: Sebastian Hesselbarth Cc: Takashi Iwai 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 -- Sent by a computer through tubes