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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 <gang.chen@asianux.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Chen Gang 2013-08-30 13:01:45 +08:00 committed by Greg Kroah-Hartman
parent 06849faab5
commit 3cc1f95283
1 changed files with 1 additions and 0 deletions
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drivers/uio/Kconfig
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@ -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