linux/arch/unicore32
Dave Hansen 62e88b1c00 mm: Make arch_unmap()/bprm_mm_init() available to all architectures
The x86 MPX patch set calls arch_unmap() and arch_bprm_mm_init()
from fs/exec.c, so we need at least a stub for them in all
architectures.  They are only called under an #ifdef for
CONFIG_MMU=y, so we can at least restict this to architectures
with MMU support.

blackfin/c6x have no MMU support, so do not call arch_unmap().
They also do not include mm_hooks.h or mmu_context.h at all and
do not need to be touched.

s390, um and unicore32 do not use asm-generic/mm_hooks.h, so got
their own arch_unmap() versions.  (I also moved um's
arch_dup_mmap() to be closer to the other mm_hooks.h functions).

xtensa only includes mm_hooks when MMU=y, which should be fine
since arch_unmap() is called only from MMU=y code.

For the rest, we use the stub copies of these functions in
asm-generic/mm_hook.h.

I cross compiled defconfigs for cris (to check NOMMU) and s390
to make sure that this works.  I also checked a 64-bit build
of UML and all my normal x86 builds including PARAVIRT on and
off.

Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Dave Hansen <dave@sr71.net>
Cc: linux-arch@vger.kernel.org
Cc: x86@kernel.org
Link: http://lkml.kernel.org/r/20141118182350.8B4AA2C2@viggo.jf.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-11-19 11:54:13 +01:00
..
boot lib: Move fonts from drivers/video/console/ to lib/fonts/ 2013-06-28 10:28:22 +02:00
configs USB: delete CONFIG_USB_DEVICEFS from defconfig 2014-05-27 16:07:13 -07:00
include mm: Make arch_unmap()/bprm_mm_init() available to all architectures 2014-11-19 11:54:13 +01:00
kernel nosave: consolidate __nosave_{begin,end} in <asm/sections.h> 2014-10-09 22:26:04 -04:00
lib unicore32: fix build error for find bitops 2011-11-15 17:13:14 +08:00
mm arch: unicore32: ksyms: export '__cpuc_coherent_kern_range' to avoid compiling failure 2014-06-20 08:22:41 +08:00
.gitignore unicore32 core architecture: build infrastructure 2011-03-17 09:19:05 +08:00
Kconfig unicore32: Remove ARCH_HAS_CPUFREQ config option 2014-06-20 08:22:41 +08:00
Kconfig.debug unicore32: drop unused Kconfig symbols 2011-11-15 17:13:18 +08:00
Makefile unicore32: Use generic init_task 2012-05-05 13:00:26 +02:00