drivers: uio: Kconfig: add MMU dependancy for UIO

The User space I/O drivers are useful, only when user space meaningful (MMU must be enabled). So need let it depend on MMU, or can not pass compiling, the related error (allmodconfig for H8300): CC [M] drivers/uio/uio.o drivers/uio/uio.c: In function 'uio_mmap_physical': drivers/uio/uio.c:650:2: error: implicit declaration of function 'pgprot_noncached' [-Werror=implicit-function-declaration] drivers/uio/uio.c:650:20: error: incompatible types when assigning to type 'pgprot_t' from type 'int' Signed-off-by: Chen Gang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
kawasaki · Aug 30, 2013 · 3cc1f95 · 3cc1f95
1 parent 06849fa
commit 3cc1f95
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/drivers/uio/Kconfig b/drivers/uio/Kconfig
@@ -1,5 +1,6 @@
 menuconfig UIO
 	tristate "Userspace I/O drivers"
+	depends on MMU
 	help
 	  Enable this to allow the userspace driver core code to be
 	  built.  This code allows userspace programs easy access to