ANDROID_BINDER_IPC used the functions which need depend on MMU, so need let it depend on MMU too, or compiling fails. The related error: drivers/built-in.o: In function `binder_update_page_range': drivers/staging/android/binder.c:599: undefined reference to `map_vm_area' drivers/staging/android/binder.c:626: undefined reference to `zap_page_range' drivers/built-in.o: In function `binder_mmap': drivers/staging/android/binder.c:2744: undefined reference to `get_vm_area' Signed-off-by: Chen Gang <gang.chen@xxxxxxxxxxx> --- drivers/staging/android/Kconfig | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/staging/android/Kconfig b/drivers/staging/android/Kconfig index c0c95be..85fc94b 100644 --- a/drivers/staging/android/Kconfig +++ b/drivers/staging/android/Kconfig @@ -10,6 +10,7 @@ if ANDROID config ANDROID_BINDER_IPC bool "Android Binder IPC Driver" + depends on MMU default n ---help--- Binder is used in Android for both communication between processes, -- 1.7.7.6 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel