UPSTREAM: dm verity: clean up duplicate hashing code

Handle dm-verity salting in one place to simplify the code.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

Bug: None
Patchset: dm-verity

Signed-off-by: Mattias Nissler <mnissler@google.com>
Change-Id: I5b30794cf0c6df4ab3f28739eeee44e41f3cf0e8
1 file changed