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Commit fba28905 authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Russell King
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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: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarRussell 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