"git reset --hard" on riscv for-linux-next branch

[Palmer Dabbelt]

Is it OK to rewrite history on my for-linux-next branch?  Since we got upstream 
I've started getting patches from various people and as a result I now have a 
bunch of branches with independent commits on them.  In an ideal world I'd like to 
do something like

  git checkout for-linux-next
  git reset --hard torvalds/master # or maybe the latest tag?
  for branch in $(list-staging-branches-for-linux-next)
  do
    git merge $branch
  done
  git push --force palmer for-linux-next

Is that an OK thing to do regularly in the branch I give to you?  I can find a 
bunch of information on how to use linux-next, but not for people in it.