powerpc: Don't set HAVE_EFFICIENT_UNALIGNED_ACCESS on little endian builds

POWER7 takes alignment exceptions on some unaligned addresses, so
disable HAVE_EFFICIENT_UNALIGNED_ACCESS. This fixes an early boot
issue in the printk code.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 2c69c43..c5a868b 100644 (file)
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -97,7 +97,7 @@ config PPC
        select VIRT_TO_BUS if !PPC64
        select HAVE_IDE
        select HAVE_IOREMAP_PROT
-       select HAVE_EFFICIENT_UNALIGNED_ACCESS
+       select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_LITTLE_ENDIAN
        select HAVE_KPROBES
        select HAVE_ARCH_KGDB
        select HAVE_KRETPROBES