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

* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC32]: Revert f642b263800e6e57c377d630be6d2a999683b579.
  [SPARC64]: Need to clobber global reg vars in switch_to().