rtsx_usb_sdmmc module uses the LED classdev if available, but the code failed to consider the situation that it is built-in and the LED classdev is a module, leading to following linking error: LD init/built-in.o drivers/built-in.o: In function `rtsx_usb_sdmmc_drv_remove': rtsx_usb_sdmmc.c:(.text+0x2a018e): undefined reference to `led_classdev_unregister' drivers/built-in.o: In function `rtsx_usb_sdmmc_drv_probe': rtsx_usb_sdmmc.c:(.text+0x2a197e): undefined reference to `led_classdev_register' Fix by excluding such condition when defining macro RTSX_USB_USE_LEDS_CLASS. Signed-off-by: Roger Tseng <rogerable@xxxxxxxxxxx> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Acked-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx> --- v2 by Arnd: change the second #ifdef as well. diff --git a/drivers/mmc/host/rtsx_usb_sdmmc.c b/drivers/mmc/host/rtsx_usb_sdmmc.c index e11fafa..5d3766e 100644 --- a/drivers/mmc/host/rtsx_usb_sdmmc.c +++ b/drivers/mmc/host/rtsx_usb_sdmmc.c @@ -34,7 +34,8 @@ #include <linux/mfd/rtsx_usb.h> #include <asm/unaligned.h> -#if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE) +#if defined(CONFIG_LEDS_CLASS) || (defined(CONFIG_LEDS_CLASS_MODULE) && \ + defined(CONFIG_MMC_REALTEK_USB_MODULE)) #include <linux/leds.h> #include <linux/workqueue.h> #define RTSX_USB_USE_LEDS_CLASS @@ -59,7 +60,7 @@ struct rtsx_usb_sdmmc { unsigned char power_mode; -#if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE) +#ifdef RTSX_USB_USE_LEDS_CLASS struct led_classdev led; char led_name[32]; struct work_struct led_work; _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel