In commit

  296c5e5960b55 ("SUNRPC: xdr_buf_trim: clamp buf->len to avoid underflow")

Fixes tag

  Fixes: 0a8e7b7d0846 ("SUNRPC: Revert 241b1f419f0e (\"SUNRPC: Remove xdr_buf_trim()\")")

has these problem(s):

  - Subject does not match target commit subject
    Just use
	git log -1 --format='Fixes: %h ("%s")'