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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>
Anton Blanchard 12 жил өмнө
parent
commit
0b5e6661ac

+ 1 - 1
arch/powerpc/Kconfig

@@ -97,7 +97,7 @@ config PPC
 	select VIRT_TO_BUS if !PPC64
 	select VIRT_TO_BUS if !PPC64
 	select HAVE_IDE
 	select HAVE_IDE
 	select HAVE_IOREMAP_PROT
 	select HAVE_IOREMAP_PROT
-	select HAVE_EFFICIENT_UNALIGNED_ACCESS
+	select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_LITTLE_ENDIAN
 	select HAVE_KPROBES
 	select HAVE_KPROBES
 	select HAVE_ARCH_KGDB
 	select HAVE_ARCH_KGDB
 	select HAVE_KRETPROBES
 	select HAVE_KRETPROBES