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

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  math-emu: Fix thinko in _FP_DIV
  math-emu: Fix signalling of underflow and inexact while packing result.
  sparc: Add checkstack support
  sparc: correct section of current_pc()
  sparc: correct section of apc_no_idle
  sparc64: Fix race in arch/sparc64/kernel/trampoline.S