[PATCH v2] ARM: alignment: Prevent ignoring of faults with ARMv6 unaligned access model

[Russell King - ARM Linux]

On Tue, Jul 26, 2011 at 05:28:57PM -0400, Nicolas Pitre wrote:
> Why not clearing the U bit as well as the A bit to preserve consistency 
> with the pre ARMv6 behavior?

Because some CPUs have the U bit forced to 1.  IOW, it's not possible to
disable it.