Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cleanups from Ingo Molnar:
 "Two small cleanups"

* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/traps: Get rid of unnecessary preempt_disable/preempt_enable_no_resched
  x86/pci-calgary: Fix iommu_free() comparison of unsigned expression >= 0