ARM: fix DEBUG_SET_MODULE_RONX build dependencies

randconfig testing reveals that DEBUG_SET_MODULE_RONX needs to depend on
MMU otherwise these build errors are observed:

kernel/built-in.o: In function `set_section_ro_nx':
kernel/module.c:1738: undefined reference to `set_memory_nx'
kernel/built-in.o: In function `set_page_attributes':
kernel/module.c:1709: undefined reference to `set_memory_ro'

This is because the pageattr functions are not built for !MMU configs as
they don't have page tables.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 0c12ffb155a23c604c9bbb9b849a913d359e34ae..dfa21cb58f36799c291ae3ad9ab1b05955c67013 100644 (file)
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -1590,7 +1590,7 @@ config PID_IN_CONTEXTIDR
 
 config DEBUG_SET_MODULE_RONX
        bool "Set loadable kernel module data as NX and text as RO"
-       depends on MODULES
+       depends on MODULES && MMU
        ---help---
          This option helps catch unintended modifications to loadable
          kernel module's text and read-only data. It also prevents execution