Commit fba28905 authored Jan 28, 2015 by Arnd Bergmann Committed by Russell King Jan 29, 2015

ARM: 8298/1: ARM_KERNMEM_PERMS only works with MMU enabled



The recently added ARM_KERNMEM_PERMS feature works by manipulating
the kernel page tables, which obviously requires an MMU. Trying
to enable this feature when the MMU is disabled results in a lot
of compile errors in mm/init.c, so let's add a Kconfig dependency
to avoid that case.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

parent ed460925

arch/arm/mm/Kconfig

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -1012,6 +1012,7 @@ config ARCH_SUPPORTS_BIG_ENDIAN

	config ARM_KERNMEM_PERMS		config ARM_KERNMEM_PERMS
	bool "Restrict kernel memory permissions"		bool "Restrict kernel memory permissions"
			depends on MMU
	help		help
	If this is set, kernel memory other than kernel text (and rodata)		If this is set, kernel memory other than kernel text (and rodata)
	will be made non-executable. The tradeoff is that each region is		will be made non-executable. The tradeoff is that each region is