[PATCH v2] ARM: alignment: Prevent ignoring of faults with ARMv6 unaligned access model
From: Russell King - ARM Linux <hidden>
Date: 2011-07-26 21:35:22
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.