Hi Greg, After merging the driver-core tree, today's linux-next build (x86_64 allmodconfig) failed like this: ERROR: "devm_gpio_request_one" [drivers/extcon/extcon-arizona.ko] undefined! Caused by commit 01eaf2458773 ("extcon: Convert extcon_gpio to devm_gpio_request_one"). devm_gpio_request_one is not currently exported to modules. This has not been seen earlier because CONFIG_MFD_ARIZONA only got added today :-( I have added the following merge fix patch for today: From: Stephen Rothwell Date: Tue, 10 Jul 2012 15:25:14 +1000 Subject: [PATCH] extcon: extcon-arizone can not be built as a module for now fixes this build error: ERROR: "devm_gpio_request_one" [drivers/extcon/extcon-arizona.ko] undefined! Signed-off-by: Stephen Rothwell --- drivers/extcon/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/extcon/Kconfig b/drivers/extcon/Kconfig index dbd96af..a2071e4 100644 --- a/drivers/extcon/Kconfig +++ b/drivers/extcon/Kconfig @@ -30,7 +30,7 @@ config EXTCON_MAX8997 detector and switch. config EXTCON_ARIZONA - tristate "Wolfson Arizona EXTCON support" + bool "Wolfson Arizona EXTCON support" depends on MFD_ARIZONA help Say Y here to enable support for external accessory detection -- 1.7.10.280.gaa39 -- Cheers, Stephen Rothwell sfr@canb.auug.org.au