[hijacking the thread since it has the right Cc list already, sorry] I stumbled over this doing randconfig builds on linux-next 8<---------- >From c11f54f1e5ea0557e076867ca31c90bcb20e3e0c Mon Sep 17 00:00:00 2001 From: Arnd Bergmann <arnd@xxxxxxxx> Date: Tue, 29 Apr 2014 11:41:40 +0200 Subject: [PATCH] mmc: rtsx: usb backend needs LED support Building the rtsx USB driver requires the LED classdev base support, otherwise we get this build error: drivers/built-in.o: In function `rtsx_usb_sdmmc_drv_remove': :(.text+0x806480): undefined reference to `led_classdev_unregister' drivers/built-in.o: In function `rtsx_usb_sdmmc_drv_probe': :(.text+0x806708): undefined reference to `led_classdev_register' This adds an explicit dependency in Kconfig Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig index 92d91fe..66aedf3 100644 --- a/drivers/mmc/host/Kconfig +++ b/drivers/mmc/host/Kconfig @@ -696,6 +696,7 @@ config MMC_REALTEK_PCI config MMC_REALTEK_USB tristate "Realtek USB SD/MMC Card Interface Driver" depends on MFD_RTSX_USB + depends on LEDS_CLASS help Say Y here to include driver code to support SD/MMC card interface of Realtek RTS5129/39 series card reader -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html