Merge tag 'pr-20150201-x86-vdso' of git://git.kernel.org/pub/scm/linux/kernel/git/luto/linux into x86/asm

Pull VDSO fix fro Andy Lutomirski:

 "x86, vdso: One trivial last-minute VDSO build improvement

  Andrey noticed that the VDSO build wasn't cleaning itself up.  This
  one-liner fixes it."

Signed-off-by: Ingo Molnar <mingo@kernel.org>