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@xxxxxxxxxxxx> Cc: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx> Cc: Alexandre Torgue <alexandre.torgue@xxxxxx> Cc: <alsa-devel@xxxxxxxxxxxxxxxx> Cc: Andrew Lunn <andrew@xxxxxxx> Cc: Arnd Bergmann <arnd@xxxxxxxx> Cc: Dan Murphy <dmurphy@xxxxxx> Cc: "David S. Miller" <davem@xxxxxxxxxxxxx> Cc: Frank Rowand <frowand.list@xxxxxxxxx> Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Cc: Gregory Clement <gregory.clement@xxxxxxxxxxx> Cc: Grygorii Strashko <grygorii.strashko@xxxxxx> Cc: Guenter Roeck <linux@xxxxxxxxxxxx> Cc: Jacek Anaszewski <jacek.anaszewski@xxxxxxxxx> Cc: Jacopo Mondi <jacopo@xxxxxxxxxx> Cc: Jaroslav Kysela <perex@xxxxxxxx> Cc: Jason Cooper <jason@xxxxxxxxxxxxxx> Cc: Jean Delvare <jdelvare@xxxxxxxx> Cc: Jiri Slaby <jslaby@xxxxxxxx> Cc: Liam Girdwood <lgirdwood@xxxxxxxxx> Cc: <linux-hwmon@xxxxxxxxxxxxxxx> Cc: <linux-leds@xxxxxxxxxxxxxxx> Cc: <linux-media@xxxxxxxxxxxxxxx> Cc: <linux-omap@xxxxxxxxxxxxxxx> Cc: <linux-renesas-soc@xxxxxxxxxxxxxxx> Cc: <linux-rtc@xxxxxxxxxxxxxxx> Cc: <linux-serial@xxxxxxxxxxxxxxx> Cc: <linux-spi@xxxxxxxxxxxxxxx> Cc: <linux-usb@xxxxxxxxxxxxxxx> Cc: Mark Brown <broonie@xxxxxxxxxx> Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> Cc: Maxime Coquelin <mcoquelin.stm32@xxxxxxxxx> Cc: Paul Cercueil <paul@xxxxxxxxxxxxxxx> Cc: Pavel Machek <pavel@xxxxxx> Cc: Richard Leitner <richard.leitner@xxxxxxxxxxx> Cc: Riku Voipio <riku.voipio@xxxxxx> Cc: Rob Herring <robh+dt@xxxxxxxxxx> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@xxxxxxxxx> Cc: Takashi Iwai <tiwai@xxxxxxxx> 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