On Tuesday 29 April 2014 13:05:15 Ulf Hansson wrote: > On 29 April 2014 11:45, Arnd Bergmann <arnd@xxxxxxxx> wrote: > > 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 > > I think the proper solution is to fix the dependency in the driver code instead. > > There are already some ifdefs hackery for making it optional to use > leds, apparently that's not working properly. > Ah, right, I misinterpreted the bug. Here is a new version: 8<--------- >From 5b5588f8c9b8ded8b296fd32d87b2d118e548a29 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 uses the LED classdev base support if available, but that fails if the classdev is a module and the MMC driver is built-in, leading to this link 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 to ensure that the MMC driver has to be a module if LEDS_CLASS is a module, but still allows it to be built-in if LEDS_CLASS is either disabled or built-in. Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig index 92d91fe..68da9b8 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 m || LEDS_CLASS!=m help Say Y here to include driver code to support SD/MMC card interface of Realtek RTS5129/39 series card reader _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
