[PATCH 1/2] arm/mm: L2CC shared mutex with ARM TZ

[Russell King - ARM Linux]

On Wed, Nov 14, 2012 at 11:45:42AM +0100, Etienne CARRIERE ST wrote:
> Thanks for notifying. I will look at the recent release to see if our
> architecture complies with Kernel code.
> 
> Our mutex implementation is based on 0/1 lock/unlock value in target
> mutex DDR cell.

Right, so we have another bug here: it is incompatible with the current
ARM spinlock implementation - and using it on the same memory location
as a spinlock will corrupt the spinlock.