[PATCH] fix kexec asm

While testing kexec and kdump we hit problems where the new kernel would
freeze or instantly reboot.  The easiest way to trigger it was to kexec a
kernel compiled for CONFIG_M586 on an athlon cpu.  Compiling for CONFIG_MK7
instead would work fine.

The patch fixes a few problems with the kexec inline asm.

Signed-off-by: Chris Mason <mason@suse.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/asm-powerpc/kexec.h

@@ -93,7 +93,8 @@ static inline void crash_setup_regs(struct pt_regs *newregs,
 			"mfxer  %0\n"
 			"std    %0, 296(%2)\n"
 			: "=&r" (tmp1), "=&r" (tmp2)
-			: "b" (newregs));
+			: "b" (newregs)
+			: "memory");
 	}
 }
 #else