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

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

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