[PATCH 13/15] ARM: code patching only works on MMU

[Arnd Bergmann]

There is no __set_fixmap implementation for NOMMU kernels, so
we cannot link the kernel/patch.c file:

arch/arm/kernel/built-in.o: In function `patch_map':
:(.text+0x257e): undefined reference to `__set_fixmap'
arch/arm/kernel/built-in.o: In function `__patch_text_real':
:(.text+0x2618): undefined reference to `__set_fixmap'
:(.text+0x262e): undefined reference to `__set_fixmap'

To work around that, this adds dependencies for all features
that rely on code patching.

Signed-off-by: Arnd Bergmann <arnd at arndb.de>
---
 arch/arm/Kconfig | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 04af434c11b1..ed5beecbeb45 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -29,8 +29,8 @@ config ARM
 	select HARDIRQS_SW_RESEND
 	select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
 	select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
-	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32
-	select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32
+	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
+	select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
 	select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_BPF_JIT
@@ -41,7 +41,7 @@ config ARM
 	select HAVE_DMA_API_DEBUG
 	select HAVE_DMA_ATTRS
 	select HAVE_DMA_CONTIGUOUS if MMU
-	select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL) && !CPU_ENDIAN_BE32
+	select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL) && !CPU_ENDIAN_BE32 && MMU
 	select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
 	select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
 	select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
-- 
2.1.0.rc2