Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: Fix several kprobes bugs.
  [SPARC64]: Update defconfig.
  [SPARC64]: dma remove extra brackets
  [SPARC{32,64}]: Propagate ptrace_traceme() return value.
  [SPARC64]: Replace kmalloc+memset with kzalloc
  [SPARC]: Check kzalloc() return value in SUN4D irq/iommu init.
  [SPARC]: Replace kmalloc+memset with kzalloc
  [SPARC64]: Run ctrl-alt-del action for sun4v powerdown request.
  [SPARC64]: Unaligned accesses to userspace are hard errors.
  [SPARC64]: Call do_mathemu on illegal instruction traps too.
  [SPARC64]: Update defconfig.
  [SPARC64]: Add irqtrace/stacktrace/lockdep support.